Mil. Spec. External-Tooth Lock Washers

33 products

Mil. Spec. External-Tooth Lock Washers

Mil. Spec. External-Tooth Lock Washers are critical components in preventing fastener loosening due to vibration, thermal expansion, or dynamic loads. Our selection includes split, tooth, and wedge-lock designs manufactured from high-strength materials like spring steel and stainless steel. These washers provide a reliable mechanical lock by creating tension or biting into the mating surface, ensuring long-term structural integrity in automotive, aerospace, and heavy machinery applications. Engineered to meet rigorous industrial standards, they offer exceptional performance in high-vibration environments.

Part Number Material For Screw Size ID OD Thickness Washer Type Hardness Specifications Met Fastener Strength Grade/Class
1315FA00014 410 Stainless Steel 1" 1.025" 1.62" 0.059-0.067" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-70 -
1315FA00009 410 Stainless Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-65 -
1315FA00005 410 Stainless Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-61 -
1315FA00012 410 Stainless Steel 3/4" 0.768" 1.26" 0.047-0.055" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-68 -
1315FA00007 410 Stainless Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-63 -
1315FA00006 410 Stainless Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-62 -
1315FA00011 410 Stainless Steel 5/8" 0.641" 1.07" 0.042-0.050" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-67 -
1315FA00008 410 Stainless Steel 7/16" 0.448" 0.76" 0.032-0.040" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-64 -
1315FA00013 410 Stainless Steel 7/8" 0.897" 1.41" 0.052-0.060" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-69 -
1315FA00010 410 Stainless Steel 9/16" 0.576" 0.985" 0.037-0.045" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-66 -
1315FA00004 410 Stainless Steel No. 10 0.195" 0.41" 0.020-0.025" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-60 -
1315FA00001 410 Stainless Steel No. 4 0.115" 0.26" 0.015-0.019" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-57 -
1315FA00002 410 Stainless Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-58 -
1315FA00003 410 Stainless Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-59 -
1315FA00033 Bronze 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Not Rated ASME B18.21.1; MS35335-93 -
1315FA00030 Bronze 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Not Rated ASME B18.21.1; MS35335-89 -
1315FA00032 Bronze 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Not Rated ASME B18.21.1; MS35335-91 -
1315FA00031 Bronze 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Not Rated ASME B18.21.1; MS35335-90 -
1315FA00029 Bronze No. 10 0.195" 0.41" 0.020-0.025" Tooth Lock Not Rated ASME B18.21.1; MS35335-88 -
1315FA00028 Zinc-Plated Steel 1" 1.025" 1.62" 0.059-0.067" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-42 -
1315FA00023 Zinc-Plated Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-37 -
1315FA00019 Zinc-Plated Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-33 -
1315FA00026 Zinc-Plated Steel 3/4" 0.768" 1.26" 0.047-0.055" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-40 -
1315FA00021 Zinc-Plated Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-35 -
1315FA00020 Zinc-Plated Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-34 -
1315FA00025 Zinc-Plated Steel 5/8" 0.641" 1.07" 0.042-0.050" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-39 -
1315FA00022 Zinc-Plated Steel 7/16" 0.448" 0.76" 0.032-0.040" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-36 -
1315FA00027 Zinc-Plated Steel 7/8" 0.897" 1.41" 0.052-0.060" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-41 -
1315FA00024 Zinc-Plated Steel 9/16" 0.576" 0.985" 0.037-0.045" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-38 -
1315FA00018 Zinc-Plated Steel No. 10 0.195" 0.41" 0.020-0.025" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-32 -
1315FA00015 Zinc-Plated Steel No. 4 0.115" 0.26" 0.015-0.019" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-29 -
1315FA00016 Zinc-Plated Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-30 -
1315FA00017 Zinc-Plated Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Rockwell C40 ASME B18.21.1; MS35335-31 -
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