Mil. Spec. Washers

75 products

Mil. Spec. Washers

Our Mil. Spec. Washers are precision-engineered to meet the specific demands of modern industrial assembly. Whether you require specialized geometries for load distribution, insulating properties for electrical applications, or high-temperature resistance for extreme environments, our portfolio offers the perfect solution. Manufactured from premium materials including alloy steel, stainless steel, and high-performance polymers, these washers ensure maximum reliability and extended service life. Explore our comprehensive range to find the exact specifications required for your precision engineering needs.

For Screw Size
1" 1/2" 1/4" 3/4" 3/8" 5/16" 5/8" 7/16" 7/8" No. 0 No. 1 No. 10 No. 12 No. 2 No. 3 No. 4 No. 5 No. 6 No. 8
Specifications Met
MS14151-1 MS14151-2 MS14151-3 MS14151-4 MS14151-5 MS14151-6 MS15795-801; NASM15795 MS15795-802; NASM15795; ASME B18.21.1 MS15795-803; NASM15795 MS15795-804; NASM15795; ASME B18.21.1 MS15795-805; NASM15795 MS15795-806; NASM15795; ASME B18.21.1 MS15795-807; NASM15795 MS15795-808; NASM15795 MS15795-809; NASM15795; ASME B18.21.1 MS15795-810; NASM15795; ASME B18.21.1 MS15795-811; NASM15795; ASME B18.21.1 MS15795-812; NASM15795; ASME B18.21.1 MS15795-813; NASM15795 MS15795-814; NASM15795; ASME B18.21.1 MS15795-815; NASM15795; ASME B18.21.1 MS15795-816; NASM15795; ASME B18.21.1 MS15795-817; NASM15795; ASME B18.21.1 MS15795-818; NASM15795; ASME B18.21.1 MS15795-819; NASM15795; ASME B18.21.1 MS15795-820; NASM15795; ASME B18.21.1 MS15795-821; NASM15795; ASME B18.21.1 MS15795-822; NASM15795; ASME B18.21.1 MS15795-823; NASM15795; ASME B18.21.1 MS15795-824; NASM15795; ASME B18.21.1 MS15795-825; NASM15795; ASME B18.21.1 MS15795-826; NASM15795; ASME B18.21.1 MS15795-827; NASM15795; ASME B18.21.1 MS15795-841; NASM15795; ASME B18.21.1 MS15795-842; NASM15795; ASME B18.21.1 MS16212-11 MS16212-12 MS16212-13 MS16212-14 MS16212-15 MS16212-16 MS51496-P61 MS51496-P62 MS51496-P63 MS51496-P64 MS51496-P65 MS51496-P66 MS51496-P67 MS51496-P68 MS51496-P69 MS51496-P70 MS51496-P71 MS51496-P73 MS51496-P75 MS51496-P77 MS51496-P78 MS51496-P79 MS51496-P80 MS51496-P82 MS51496-P84 MS51496-P85 MS51496-P86 MS51496-P87 NAS1149-CN216R; AN960-C2L NAS1149-CN232R; AN960-C2 NAS1149-CN316R; AN960-C3L NAS1149-CN332R; AN960-C3 NAS1149-CN416R; AN960-C4L NAS1149-CN432R; AN960-C4; ASME B18.21.1 NAS1149-CN532R NAS1149-CN542R; AN960-C5 NAS1149-CN616R; AN960-C6L NAS1149-CN632R; AN960-C6 NAS1149-CN816R; AN960-C8L NAS1149-CN832R; AN960-C8
ID
0.068" 0.078" 0.094" 0.099" 0.105" 0.109" 0.125" 0.14" 0.149" 0.154" 0.156" 0.174" 0.176" 0.187" 0.188" 0.199" 0.209" 0.21" 0.219" 0.22" 0.25" 0.27" 0.275" 0.28" 0.281" 0.288" 0.312" 0.317" 0.322" 0.338" 0.344" 0.375" 0.385" 0.4" 0.406" 0.421" 0.438" 0.447" 0.469" 0.5" 0.531" 0.562" 0.572" 0.656" 0.688" 0.697" 0.812" 0.813" 0.822" 0.938" 1.062"
OD
0.13" 0.14" 0.161" 0.18" 0.188" 0.219" 0.25" 0.255" 0.284" 0.312" 0.315" 0.365" 0.375" 0.4" 0.438" 0.44" 0.46" 0.49" 0.5" 0.525" 0.56" 0.562" 0.62" 0.625" 0.63" 0.688" 0.734" 0.76" 0.812" 0.875" 0.885" 0.922" 1" 1.062" 1.09" 1.125" 1.25" 1.26" 1.312" 1.375" 1.469" 1.51" 1.75" 1.76" 2" 2.25" 2.5"
Thickness
0.010-0.013" 0.013-0.019" 0.014-0.018" 0.016-0.025" 0.017-0.028" 0.017-0.023" 0.022-0.028" 0.025-0.040" 0.027-0.048" 0.028-0.036" 0.029-0.035" 0.029-0.032" 0.036-0.065" 0.037-0.047" 0.040-0.050" 0.045-0.055" 0.051-0.080" 0.064-0.104" 0.074-0.121" 0.086-0.132" 0.108-0.160" 0.122-0.177" 0.136-0.192"
Part Number Material For Screw Size ID OD Thickness Specifications Met
1250FA00074 Passivated 18-8 Stainless Steel 1" 1.062" 2" 0.108-0.160" MS15795-826; NASM15795; ASME B18.21.1
1250FA00075 Passivated 18-8 Stainless Steel 1" 1.062" 2.5" 0.136-0.192" MS15795-827; NASM15795; ASME B18.21.1
1250FA00066 Passivated 18-8 Stainless Steel 1/2" 0.531" 1.062" 0.074-0.121" MS15795-818; NASM15795; ASME B18.21.1
1250FA00067 Passivated 18-8 Stainless Steel 1/2" 0.562" 1.375" 0.086-0.132" MS15795-819; NASM15795; ASME B18.21.1
1250FA00004 Passivated 18-8 Stainless Steel 1/2" 0.572" 1.26" 0.086-0.132" MS16212-14
1250FA00046 Passivated 18-8 Stainless Steel 1/4" 0.27" 0.46" 0.029-0.032" MS51496-P75
1250FA00010 Passivated 18-8 Stainless Steel 1/4" 0.275" 1.09" 0.017-0.023" MS14151-3
1250FA00035 Passivated 18-8 Stainless Steel 1/4" 0.28" 0.375" 0.022-0.028" MS51496-P84
1250FA00057 Passivated 18-8 Stainless Steel 1/4" 0.281" 0.625" 0.051-0.080" MS15795-810; NASM15795; ASME B18.21.1
1250FA00036 Passivated 18-8 Stainless Steel 1/4" 0.288" 0.44" 0.029-0.032" MS51496-P77
1250FA00058 Passivated 18-8 Stainless Steel 1/4" 0.312" 0.734" 0.051-0.080" MS15795-811; NASM15795; ASME B18.21.1
1250FA00001 Passivated 18-8 Stainless Steel 1/4" 0.322" 0.76" 0.051-0.080" MS16212-11
1250FA00070 Passivated 18-8 Stainless Steel 3/4" 0.812" 1.469" 0.108-0.160" MS15795-822; NASM15795; ASME B18.21.1
1250FA00071 Passivated 18-8 Stainless Steel 3/4" 0.812" 2" 0.122-0.177" MS15795-823; NASM15795; ASME B18.21.1
1250FA00040 Passivated 18-8 Stainless Steel 3/4" 0.813" 1.125" 0.013-0.019" MS51496-P87
1250FA00006 Passivated 18-8 Stainless Steel 3/4" 0.822" 1.76" 0.122-0.177" MS16212-16
1250FA00012 Passivated 18-8 Stainless Steel 3/8" 0.4" 1.09" 0.017-0.023" MS14151-5
1250FA00062 Passivated 18-8 Stainless Steel 3/8" 0.406" 0.812" 0.051-0.080" MS15795-814; NASM15795; ASME B18.21.1
1250FA00038 Passivated 18-8 Stainless Steel 3/8" 0.421" 0.63" 0.045-0.055" MS51496-P85
1250FA00063 Passivated 18-8 Stainless Steel 3/8" 0.438" 1" 0.064-0.104" MS15795-815; NASM15795; ASME B18.21.1
1250FA00003 Passivated 18-8 Stainless Steel 3/8" 0.447" 0.885" 0.064-0.104" MS16212-13
1250FA00037 Passivated 18-8 Stainless Steel 5/16" 0.317" 0.525" 0.029-0.032" MS51496-P78
1250FA00011 Passivated 18-8 Stainless Steel 5/16" 0.338" 1.09" 0.017-0.023" MS14151-4
1250FA00059 Passivated 18-8 Stainless Steel 5/16" 0.344" 0.688" 0.051-0.080" MS15795-812; NASM15795; ASME B18.21.1
1250FA00060 Passivated 18-8 Stainless Steel 5/16" 0.375" 0.875" 0.064-0.104" MS15795-813; NASM15795
1250FA00002 Passivated 18-8 Stainless Steel 5/16" 0.385" 0.76" 0.051-0.080" MS16212-12
1250FA00039 Passivated 18-8 Stainless Steel 5/8" 0.656" 1.062" 0.040-0.050" MS51496-P86
1250FA00068 Passivated 18-8 Stainless Steel 5/8" 0.656" 1.312" 0.074-0.121" MS15795-820; NASM15795; ASME B18.21.1
1250FA00069 Passivated 18-8 Stainless Steel 5/8" 0.688" 1.75" 0.108-0.160" MS15795-821; NASM15795; ASME B18.21.1
1250FA00005 Passivated 18-8 Stainless Steel 5/8" 0.697" 1.51" 0.108-0.160" MS16212-15
1250FA00064 Passivated 18-8 Stainless Steel 7/16" 0.469" 0.922" 0.051-0.080" MS15795-816; NASM15795; ASME B18.21.1
1250FA00065 Passivated 18-8 Stainless Steel 7/16" 0.5" 1.25" 0.064-0.104" MS15795-817; NASM15795; ASME B18.21.1
1250FA00072 Passivated 18-8 Stainless Steel 7/8" 0.938" 1.75" 0.108-0.160" MS15795-824; NASM15795; ASME B18.21.1
1250FA00073 Passivated 18-8 Stainless Steel 7/8" 0.938" 2.25" 0.136-0.192" MS15795-825; NASM15795; ASME B18.21.1
1250FA00025 Passivated 18-8 Stainless Steel No. 0 0.068" 0.13" 0.022-0.028" MS51496-P61
1250FA00026 Passivated 18-8 Stainless Steel No. 0 0.068" 0.161" 0.013-0.019" MS51496-P62
1250FA00061 Passivated 18-8 Stainless Steel No. 1 0.078" 0.188" 0.016-0.025" MS15795-801; NASM15795
1250FA00027 Passivated 18-8 Stainless Steel No. 1 0.099" 0.14" 0.010-0.013" MS51496-P79
1250FA00041 Passivated 18-8 Stainless Steel No. 1 0.099" 0.161" 0.022-0.028" MS51496-P63
1250FA00033 Passivated 18-8 Stainless Steel No. 10 0.21" 0.365" 0.029-0.032" MS51496-P73
1250FA00054 Passivated 18-8 Stainless Steel No. 10 0.219" 0.438" 0.036-0.065" MS15795-808; NASM15795
1250FA00055 Passivated 18-8 Stainless Steel No. 10 0.219" 0.5" 0.036-0.065" MS15795-842; NASM15795; ASME B18.21.1
1250FA00034 Passivated 18-8 Stainless Steel No. 10 0.22" 0.4" 0.040-0.050" MS51496-P82
1250FA00056 Passivated 18-8 Stainless Steel No. 12 0.25" 0.562" 0.051-0.080" MS15795-809; NASM15795; ASME B18.21.1
1250FA00047 Passivated 18-8 Stainless Steel No. 2 0.094" 0.25" 0.016-0.025" MS15795-802; NASM15795; ASME B18.21.1
1250FA00016 Passivated 18-8 Stainless Steel No. 2 0.099" 0.25" 0.014-0.018" NAS1149-CN216R; AN960-C2L
1250FA00017 Passivated 18-8 Stainless Steel No. 2 0.099" 0.25" 0.028-0.036" NAS1149-CN232R; AN960-C2
1250FA00013 Passivated 18-8 Stainless Steel No. 3 0.105" 0.25" 0.014-0.018" NAS1149-CN316R; AN960-C3L
1250FA00018 Passivated 18-8 Stainless Steel No. 3 0.105" 0.25" 0.028-0.036" NAS1149-CN332R; AN960-C3
1250FA00042 Passivated 18-8 Stainless Steel No. 3 0.109" 0.219" 0.022-0.028" MS51496-P64
1250FA00028 Passivated 18-8 Stainless Steel No. 4 0.125" 0.18" 0.013-0.019" MS51496-P80
1250FA00030 Passivated 18-8 Stainless Steel No. 4 0.125" 0.18" 0.029-0.032" MS51496-P65
1250FA00048 Passivated 18-8 Stainless Steel No. 4 0.125" 0.25" 0.017-0.028" MS15795-803; NASM15795
1250FA00029 Passivated 18-8 Stainless Steel No. 4 0.125" 0.255" 0.013-0.019" MS51496-P66
1250FA00043 Passivated 18-8 Stainless Steel No. 4 0.125" 0.255" 0.028-0.036" MS51496-P67
1250FA00019 Passivated 18-8 Stainless Steel No. 4 0.125" 0.312" 0.014-0.018" NAS1149-CN416R; AN960-C4L
1250FA00049 Passivated 18-8 Stainless Steel No. 4 0.125" 0.312" 0.025-0.040" MS15795-804; NASM15795; ASME B18.21.1
1250FA00020 Passivated 18-8 Stainless Steel No. 4 0.125" 0.312" 0.028-0.036" NAS1149-CN432R; AN960-C4; ASME B18.21.1
1250FA00014 Passivated 18-8 Stainless Steel No. 5 0.14" 0.438" 0.028-0.036" NAS1149-CN532R
1250FA00015 Passivated 18-8 Stainless Steel No. 5 0.14" 0.438" 0.037-0.047" NAS1149-CN542R; AN960-C5
1250FA00007 Passivated 18-8 Stainless Steel No. 5 0.154" 0.49" 0.017-0.023" MS14151-1
1250FA00021 Passivated 18-8 Stainless Steel No. 6 0.149" 0.375" 0.014-0.018" NAS1149-CN616R; AN960-C6L
1250FA00022 Passivated 18-8 Stainless Steel No. 6 0.149" 0.375" 0.028-0.036" NAS1149-CN632R; AN960-C6
1250FA00031 Passivated 18-8 Stainless Steel No. 6 0.156" 0.284" 0.013-0.019" MS51496-P68
1250FA00032 Passivated 18-8 Stainless Steel No. 6 0.156" 0.284" 0.029-0.035" MS51496-P69
1250FA00050 Passivated 18-8 Stainless Steel No. 6 0.156" 0.312" 0.027-0.048" MS15795-805; NASM15795
1250FA00051 Passivated 18-8 Stainless Steel No. 6 0.156" 0.375" 0.036-0.065" MS15795-806; NASM15795; ASME B18.21.1
1250FA00008 Passivated 18-8 Stainless Steel No. 6 0.187" 0.56" 0.017-0.023" MS14151-6
1250FA00023 Passivated 18-8 Stainless Steel No. 8 0.174" 0.375" 0.014-0.018" NAS1149-CN816R; AN960-C8L
1250FA00024 Passivated 18-8 Stainless Steel No. 8 0.174" 0.375" 0.028-0.036" NAS1149-CN832R; AN960-C8
1250FA00044 Passivated 18-8 Stainless Steel No. 8 0.176" 0.284" 0.029-0.035" MS51496-P70
1250FA00052 Passivated 18-8 Stainless Steel No. 8 0.188" 0.375" 0.036-0.065" MS15795-807; NASM15795
1250FA00053 Passivated 18-8 Stainless Steel No. 8 0.188" 0.438" 0.036-0.065" MS15795-841; NASM15795; ASME B18.21.1
1250FA00045 Passivated 18-8 Stainless Steel No. 8 0.199" 0.315" 0.029-0.032" MS51496-P71
1250FA00009 Passivated 18-8 Stainless Steel No. 8 0.209" 0.62" 0.017-0.023" MS14151-2
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