The main advantages of Nylon as a washer material are its resistance to abrasion, repeated impacts, organic solvents, oils, gasoline and temperature extremes. It has good creep resis­tance (yielding to pressure) and ability to self-extinguish. Nylon 6/6 is commonly used as punching grade stock and NYLATRON G5® is also popular for many applications. this special grade incorporates lubricating elements for better wear and has been heat stabilized. Washers are available to ASTM-D-4066, MIL-M-20693 and other specifications. Washers made from other POLYMIDES, such as DELRIN® and NOMEX are also listed and many others are available.

Chart References – Most standard part numbers used for Thermoplastics-Nylon washers are shown in the following charts. Where alternate part numbers are not shown, the washer material is indicated. For example, 6/6 is the most common nylon used for manufacturing purposes.

MTW – This symbol is used to indicated Motor Thrust Washers made from Nylatron for added lubricity, long wear and quiet performance in electric motors.

Polyethylene, to ASTM-D-1248, is a popular thermoplastic material for washers used in conventional operating tempera­tures. It has good electrical properties and toughness, and thin grades have reasonable clarity.

Polypropylene is one of the most economical and popular forms of plastic used for flat washers today. Material characteris­tics include chemical resistance, living hinge, light weight, arc resistance, good dielectric strength and a flammability grade. Four grades are used; the General Purpose Grade has a UL #E31765A. The High Temperature Grade uses additives to sustain rigidity under high temperature condition. FR Grade is a flame retardant polypropylene with a UL rating of SE-0 (1/8″ thick).

The Gasketing Grade, used for sealing, has a durometer of 90-95. Washers made from this versatile material are ideal for a variety of insulating and mechanical applications. these washers seal, reduce vibration and act as component guides.

Mylar® Polyester Film – EL and A series – Washers made from this material are used in such applications as: carriers in microfilm, magnetic tape, carbon ribbons and metallic yarn; electrical barriers for capacitors, motors, membrane switches and wire and cable; and as thermal barriers in wire and cable tapes.

Screw
Size
I.D.O.D.ThickAlternate
Part
Number
00.0350.1010.0315610-214-03
00.0420.3120.031
00.050.1090.02DELRIN
00.0630.1880.021MS51859-11
00.0630.3120.0315610-218-31
00.0630.3120.09FW312063090
00.0640.1220.0315610-50-31
00.0640.190.016
00.070.250.015MTW-NYLATRON
00.070.2810.015MTW-NYLATRON
00.0760.1560.01DELRIN
00.0760.1560.021MS51859-12
00.0760.160.0165610-4-15
00.0770.240.031
00.0770.50.031
10.0790.5010.031
10.0850.190.016
20.090.250.032FW250090032
20.090.250.062FW250090062
20.090.250.093FW250090093
20.090.250.125FW250090125
20.0910.280.021
20.0930.1870.0215610-9-20
20.0930.1870.031DELRIN
20.0930.1870.031MS51859-1
20.0930.2450.015MS51859-13
20.0940.1930.0415610-9-40
20.0940.2180.0085610-6-8
20.0940.2180.0165610-6-15
20.0940.2180.0315610-6-31
20.0940.2180.0625610-6-62
20.0940.230.031
20.0940.2550.0315610-11-31
20.0980.1870.031
20.0980.1870.047
20.0980.1870.062
20.0980.2230.008MYLAR
20.0980.250.031
20.0980.250.062
20.0980.3120.031
20.0980.3120.062
20.0980.610.062POLYPROP
30.10.2350.01ACETAL DELRIN
30.1050.250.022
30.1050.250.031NAS1515-H02L
30.1050.250.062NAS1515-H02
30.1080.2470.0215610-8-20
30.1080.5280.062
30.1090.2180.016
30.110.2710.045
40.1150.1850.0315610-230-31
40.1150.20.0315610-51-31
40.1150.250.032FW250115032
40.1150.250.062FW250115062
40.1150.250.093FW250115093
40.1150.280.02115083-020
40.1150.250.125FW25011525
40.1150.280.0515610-17-50
40.1150.280.0625610-16-62
40.1150.290.062
40.120.220.0215610-19-20
40.120.250.031
40.120.250.047
40.120.250.062
40.120.280.0215610-21-20
40.120.280.031
40.120.280.041
40.120.280.0515610-21-50
40.120.280.0625610-21-62
40.120.2850.0715610-21-70
40.120.3120.031
40.120.3120.047
40.120.3120.062
40.120.3750.031
40.120.3750.047
40.120.3750.062
40.1250.2280.007MYLAR
40.1250.250.016FM-6593
40.1250.250.021
40.1250.250.062
40.1250.2710.02
40.1250.2810.047MS51859-2
M30.1250.2850.02DIN125A
40.1250.310.0165610-10-15
40.1250.3120.031NAS151-H04L
40.1250.3120.062NAS1515-H04
40.1250.3430.031MS5189-14
40.1250.3540.031DIN9021, ISO7093
40.1250.3650.006
40.1250.50.1FW500125100
40.1280.1870.0115610-233-10
40.1280.1870.021227-0008-004
40.1280.2450.0115610-55-10
40.1280.3120.005MYLAR
40.1280.3120.052
40.1280.440.0215610-23-20
40.130.250.093FW250130093
40.130.3750.008310-1011-00
40.130.3750.031
40.1330.250.015MTW-NYLATRON
40.1330.2810.015MTW-NYLATRON
40.1360.250.062FM-2670, DELRIN
40.1360.3750.0315610-12-32
60.140.250.031
60.140.250.047
60.140.250.062
60.140.250.08FW250140080
60.140.260.082
60.140.2670.0315610-244-31
60.140.2850.11FW250140110
60.140.2850.118FW250140118
60.140.290.0315610-248-31
60.140.290.062
60.140.3120.0315610-35-31
60.140.3120.032FW312140032
60.140.3120.047MS51859-3
60.140.3120.047FW312140047
60.140.3120.062FW312140062
60.140.3750.031
60.140.3750.047
60.140.3750.062
60.140.750.0515610-34-50
60.140.3120.093FW312140093
60.140.3120.125FW312140125
60.1430.3750.0915610-58-91
60.1440.270.0315610-59-31
60.1440.3150.062
60.1470.250.0915610-250-90
60.1470.250.22FW250147220
60.1470.50.0315610-41-31
60.1470.50.0625410-41-62
60.1470.6430.0315610-60-31
60.1490.3750.031NAS1515-H06L
60.1490.3750.062NAS1515-H06
60.150.3120.0255610-44-25
60.150.3120.0315610-44-31
60.150.3450.031
60.150.510.062
60.1560.250.021MS51859-15
60.1560.3120.031FM-6594
60.1560.3120.041MS51859-3
60.1560.3750.0315610-45-31
60.1560.4430.051
60.1580.2810.015MTW-NYLATRON
60.1580.3430.015MTW-NYLATRON
60.1580.3750.015MTW-NYLATRON
60.1580.4060.015MTW-NYLATRON
60.160.250.0625610-46-62
60.160.490.008
60.160.5620.0625610-48-62
60.1620.3120.062FW312162062
60.1650.2350.01ACETAL DELRIN
60.1650.50.011210-0847-00
60.1650.50.014
60.1650.6250.062
60.1651.250.062
M40.1690.3540.031DIN125A, ISO7089
M40.1690.4720.039DIN9021, ISO7093
80.1710.3120.0313127, 760-2526
80.1710.3120.0473167, 760-2547
80.1710.3120.062
80.1710.340.031
80.1710.3750.031
80.1710.3750.032FW375171032
80.1710.3750.047
80.1710.3750.062FW375151062
80.1710.4370.031
80.1710.4370.047
80.1710.4370.062
80.1710.5150.0915610-61-90
80.1710.3750.093FW375151093
80.1710.3750.125FW375151125
80.1740.3750.0215610-18-20
80.1740.3750.031NAS1515-H08L
80.1740.3750.062NAS1515-H08
80.1750.2710.025
80.1780.3750.02
80.180.2810.031MTW-NYLATRON
80.180.3750.015MTW-NYLATRON
80.180.4060.015MTW-NYLATRON
80.1820.3750.008MYLAR
80.1850.3620.062
80.1850.4370.031POLYETHYLENE
80.1850.4370.0315610-62-31
80.1850.4370.0415610-62-40
80.1870.3750.0155610-90-15
80.1870.3750.032FW375187032
80.1870.3750.045MS51859-4
80.1870.3750.0625610-90-92
80.1870.390.031
80.1870.4370.032
80.1870.4370.045
80.1870.50.02BLK VINAL PLASTIC
80.1870.50.093FW500187093
80.18710.25167LN-0214-0000
80.1890.2810.015MTW-NYLATRON
80.1890.3430.015MTW-NYLATRON
80.1890.3750.031MTW-NYLATRON
80.1890.4060.015MTW-NYLATRON
80.1890.4370.015MTW-NYLATRON
80.1890.6250.057
80.1891.0050.031
100.190.4340.125FW434190125
100.1920.3120.0165610-96-15
100.1920.3750.0315606-4-31
100.1920.4380.0216/6
100.1920.5050.0155606-8-15
100.1940.3750.032FW375194032
100.1940.3750.062FW375194062
100.1940.3750.093FW375194093
100.1940.3750.125FW375194125
100.1940.50.125FW500194125
100.1950.3120.19167LN-0550-0000
100.1960.4270.0316/6
100.1960.3120.031
100.1960.3120.047
100.1960.3120.062
100.1960.3750.031
100.1980.3750.047
100.1960.3750.062
100.1960.4370.031
100.1960.4370.047
100.1960.4370.062
100.1980.50.031
100.1960.50.047
100.1960.50.062
100.1960.550.0316/6
100.1960.5620.031MTW-NYLATRON
100.20.4370.062FW437200062
100.20.450.048FW450200048
100.2010.3090.0315610-63-31
100.2010.50.0416/6
100.2010.5620.0416/6
100.2030.3070.0116/6
100.2030.4370.031NAS1515-H3L
100.2030.4370.0416/6
100.2030.4370.062NAS1515-H3
100.2030.4370.092NAS1515-H3H
100.2030.470.0415610-108-40
100.2030.6250.5167PB-0477-0000
100.2050.3070.016/6
100.2050.450.0416/6
100.2050.4650.0516/6
100.2050.50.0915610-64-90
100.2050.50.51167NN-0433-0000
100.2080.280.0215610-109-20
M50.2080.3930.039DIN125A, ISO7089
M50.2080.590.062DIN9021, ISO7093
100.210.30.0316/6
100.210.3120.0315610-287-31
100.210.450.0416/6
100.2120.370.09FW370212090
100.2140.470.0416/6
100.2180.3750.0526/6
100.2180.4060.011210-1098-00
100.2180.4370.015MTW-NYLATRON
100.2180.4370.0316/6
100.2180.4370.041MS51859-5
100.2180.4370.0626/6
100.2180.6250.041MS51859-16
100.2180.750.187167LN-2349-0000
100.2190.50.719167NB-0654-0000
100.220.4350.078FW435220078
100.2230.3750.0316/6
120.2250.4150.05FW415225050
120.2250.4370.0626/6
120.2250.50.0416/6
120.2280.3750.118FW375228118A
120.230.440.04ABS
120.2370.3750.031MTW-NYLATRON
120.2370.4370.031MTW-NYLATRON
120.250.3120.0316/6
120.250.350.0316/6
120.250.3750.026/6
120.250.3750.0626/6
120.250.5620.26167NN-0429-0000
120.250.610.0625610-290-62
120.250.6250.375167NN-0657-0000
120.250.690.0416/6
120.250.750.25167PB-0580-0000
120.250.760.125167LN-0565-0000
1/40.2510.4520.062MTW-NYLATRON
M60.2510.4920.062DIN125A, ISO7089
1/40.2510.50.062MTW-NYLATRON
1/40.2510.5620.031MTW-NYLATRON
1/40.2510.6870.031MTW-NYLATRON
M60.2510.7080.062DIN9021, ISO7093
1/40.2520.3750.031MTW-NYLATRON
1/40.2520.4060.031MTW-NYLATRON
1/40.2520.4370.031MTW-NYLATRON
1/40.2520.4720.059FW472252059
1/40.2520.620.06FW620252065
1/40.2520.6250.015MTW-NYLATRON
1/40.2520.7520.0625610-69-62
1/40.2530.4370.0165606-12-15
1/40.2530.4370.0315606-12-31
1/40.2530.4430.125FW443253125
1/40.2530.5060.0415606-16-40
1/40.2530.5680.0625606-20-62
1/40.2530.6250.25167LN-2211-0000
1/40.2530.6870.0216/6
1/40.2530.750.062167LN-2356-0000
1/40.2550.330.007MYLAR
1/40.2550.3750.0215610-120-20
1/40.2550.3750.0625610-120-62
1/40.2550.3750.115FW375255115
1/40.2570.50.312167NN-0468-0000
1/40.2570.50.0315610-293-31
1/40.2570.50.032FW500257032
1/40.2570.50.062FW500257062
1/40.2570.50.093FW500257093
1/40.2570.50.125FW500257125
1/40.2570.5620.0625610-124-62
1/40.2570.740.062RULON
1/40.260.4370.031
1/40.260.4370.047
1/40.260.4370.062
1/40.260.50.031
1/40.260.50.047
1/40.260.50.062
1/40.260.5620.062FM-2518
1/40.260.5620.562167PB-0603-0000
1/40.260.60.0315610-125-31
1/40.260.6250.031
1/40.260.6250.047
1/40.260.6250.062
1/40.260.6880.0516/6
1/40.260.750.031
1/40.260.750.0473185, 760-2557
1/40.260.750.0623220, 760-2574
1/40.260.880.002MYLAR
1/40.2650.50.031NAS1515-H4L
1/40.2650.50.062NAS1515-H4
1/40.2650.50.094NAS1515-H4H
1/40.2690.520.015MTW-NYLATRON
1/40.2750.50.0626/6
1/40.2750.5620.0626/6
1/40.2810.50.0456/6
1/40.2810.5620.062MS51859-17
1/40.2810.3250.0155610-302-15
1/40.2810.4090.078FW409281078
1/40.2810.6250.0625610-302-62
1/40.2810.6250.045MS51859-6
1/40.2810.6250.062FM-6597
1/40.2810.8750.031MS51859-18
1/40.2850.4930.026/6
1/40.2860.50.103167NN-0641-0000
1/40.3070.490.0326/6
1/40.3120.4370.062167LN-0600-0000
1/40.3120.4370.187FW437312187
5/160.3140.50.031MTW-NYLATRON
5/160.3140.50.062MTW-NYLATRON
5/160.3140.520.015MTW-NYLATRON
5/160.3140.5620.015MTW-NYLATRON
5/160.3140.6870.031MTW-NYLATRON
5/160.3150.420.0316/6
5/160.3150.5070.0155606-24-15
5/160.3150.5070.0215606-24-20
5/160.3150.6150.0266/6
5/160.3150.6250.031MTW, 5610-307-31
5/160.3170.50.031MS1848-19
5/160.3170.50.032FW500317032
5/160.3170.50.062FW500317062
5/160.3170.50.093FW500317093
5/160.3170.50.125FW500317125
5/160.320.4380.0626/6
5/160.321.50.0216/6
5/160.3250.750.0156/6
5/160.3250.50.847167BB-0518-0000
M80.330.6690.062DIN125A, ISO7089
M80.330.9850.078DIN125A, ISO7093
5/160.3280.5040.045210-1261-00
5/160.3280.5620.031NAS1515-H5L
5/160.3280.5620.062NAS1515-H5
5/160.3280.5620.094NAS1515-H5H
5/160.330.520.0165610-144-16
5/160.3380.4370.015MTW-NYLATRON
5/160.3390.7750.315FW775339315
5/160.3440.6250.045MS51859-7
5/160.3650.750.0626/6
5/160.3651.1250.0626/6
5/160.3750.440.0626/6
5/160.3750.50.0625610-76-62
5/160.3750.6250.031FM STD
5/160.3750.750.0315610-77-31
5/160.3750.750.0625610-77-62, 2679
5/160.3750.8750.375167NN-0631-0000
5/160.37510.0216/6
5/160.3760.5460.484167NN-0519-0000
3/80.3780.630.0115606-28-10
3/80.3790.8120.0625610-149-62
3/80.380.6250.032FW625380032
3/80.380.6250.062FW625380062
3/80.380.6250.093FW625380093
3/80.380.6250.125FW625380125
3/80.3830.6840.0625610-81-62
3/80.3850.50.0313145, 760-2537
3/80.3850.50.0473190, 760-2558
3/80.3850.50.0623225, 760-2575
3/80.3850.6250.0313354, 760-2517
3/80.3850.6250.0473191, 760-2559
3/80.3850.6250.0623226, 760-2515
3/80.3850.750.0313146, 760-2538
3/80.3850.750.0473192, 760-2560
3/80.3850.750.0623227, 760-2516
3/80.38510.0313147, 760-2539
3/80.38510.0473193, 760-2561
3/80.38510.0623228, 760-2576
3/80.390.50.0216/6
3/80.390.6150.0316/6
3/80.390.6250.016BACW10P274G
3/80.390.6250.031NAS1515-H6L
3/80.390.6250.062NAS1515-H6
3/80.390.6250.094NAS1515-H6H
3/80.390.750.151GOVT # – BLK
3/80.390.8750.031# 101 NYLON
3/80.40.50.062
3/80.4060.8120.047MS51859-8
3/80.40610.081MS51859-20
3/80.410.730.16FM-MOLDED
M100.4130.8250.078DIN125A, ISO7089
M100.4131.1810.098DIN9021, ISO7093
7/160.4370.6870.062MTW-NYLATRON
7/160.440.6920.0165605-32-15
7/160.4430.750.032FW750443032
7/160.4430.750.062FW750443062
7/160.4430.750.093FW750443093
7/160.4430.750.125FW750443125
7/160.4530.750.031NAS1515-H7L
7/160.4530.750.062NAS1515-H7
7/160.4530.750.094NAS1515-H7H
7/160.45510.0625610-162-62
7/160.461.750.031MS51859-21
7/160.4750.6870.062MTW-NYLATRON
7/160.4690.9220.047MS51859-9
7/160.4820.780.0316/6
7/160.490.7450.0626/6
1/20.51.1250.0936/6
1/20.5030.7560.0325606-44-32
1/20.5050.6880.025210-1429-00
1/20.5050.750.032FW75050532
1/20.5050.750.062FW750505062
1/20.5050.750.093FW50505093
1/20.5050.750.125FW750505125
1/20.5050.8430.031MTW-NYLATRON
1/20.5050.8750.0315610-170-31
1/20.50510.062FM
1/20.510.9060.0155610-173-15
M120.5110.9950.098DIN125A, ISO7089
M120.5111.5750.118DIN125A, ISO7093
1/20.5150.750.062
1/20.5150.8750.031NAS1515-H8L
1/20.5150.8750.062NAS1515-H8
1/20.5150.8750.094NAS1515-H8H
1/20.5160.6560.0115610-175-15
1/20.531.0620.047MS51859-10
1/20.531.6210.021MS51848-22
1/20.53510.062
1/20.5351.250.12
1/20.540.7320.051
1/20.5450.760.021
9/160.5650.8180.0315606-48-31
9/160.5781.0620.031NAS1515-H9L
9/160.5781.0620.062NAS1515-H9
9/160.5781.0620.094NAS1515-H9H
9/160.6051.5950.031
9/160.6051.5950.062
9/160.6251.0620.094167NN-0583-0000
9/160.6280.8820.0315606-52-31
9/160.6291.1250.128167NN-0579-0000
9/160.630.8120.0625610-190-62
5/80.641.1880.031NAS1515-H10L
5/80.641.1880.062NAS1515-H10
5/80.641.1880.094NAS1515-H10H
5/80.641.3120.0625610-364-62
M160.6691.1810.118DIN125A, ISO7089
5/80.6890.8120.0315610-199-31
5/80.690.9430.0315606-60-31
5/80.75310.0625606-64-62
5/80.7551.1250.031210-0922-00
5/80.7650.250.125167LN-0565-0000
5/80.7651.3120.031NAS1515-H12L
5/80.7651.3120.062NAS1515-H12
5/80.7651.3120.094NAS151-H12H
5/80.7671.3170.0626/6
M200.8251.4560.118DIN125A, ISO7089
7/80.871.50.0316/6
7/80.881.750.0626/6
7/80.891.50.031NAS1515-H14L
7/80.891.50.062NAS1515-H14
7/80.891.50.094NAS1515-H14H
1″1.0051.940.1126/6
1″1.0151.750.062NAS1515-H16
1″1.062.250.05412300137-PLASTIC
1-1/41.2811.750.0315610-213-31
2-5/162.3122.810.12512307267-2
2-5/162.3122.810.2512307267-1
2-7/162.442.8750.40612294962
2-7/162.443.060.0512297804-2
2-7/162.443.060.11512297804-1
5/80.7551.1250.031210-0922-00
5/80.7650.250.125167LN-0565-0000
5/80.7651.3120.031NAS1515-H12L
5/80.7651.3120.062NAS1515-H12
5/80.7651.3120.094NAS151-H12H
5/80.7671.3170.0626/6
M200.8251.4560.118DIN125A, ISO7089
7/80.871.50.0316/6
7/80.881.750.0626/6
7/80.891.50.031NAS1515-H14L
7/80.891.50.062NAS1515-H14
7/80.891.50.094NAS1515-H14H
1″1.0051.940.1126/6
1″1.0151.750.062NAS1515-H16
1″1.062.250.05412300137-PLASTIC
1-1/41.2811.750.0315610-213-31
2-5/162.3122.810.12512307267-2
2-5/162.3122.810.2512307267-1
2-7/162.442.8750.40612294962
2-7/162.443.060.0512297804-2
2-7/162.443.060.11512297804-1