3/8" x 0.812" OD Low Carbon Yellow Zinc Finish Steel SAE General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.406 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.065 INCHES NOMINAL OVERALL DIAMETER: 0.812 INCHES NOMINAL END ITEM IDENTIFICATION: NSN 2320-01-097-0260 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK); NSN 2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER);NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK); NSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); 3990-01-444-5196 CEMENT MIXER; MRAP - M-ATV CRITICALITY CODE JUSTIFICATION: FEAT SPECIAL FEATURES: WEAPON SYSTEM ESSENTIAL MATERIAL: STEEL COMP 1008 OVERALL AND STEEL COMP 1009 AND STEEL COMP 1010 AND STEEL COMP 1011 AND STEEL COMP 1012 AND STEEL COMP 1013 AND STEEL COMP 1015 AND STEEL COMP 1016 AND STEEL COMP 1017 AND STEEL COMP 1018 AND STEEL COMP 1019 AND STEEL COMP 1020 AND STEEL COMP 1021 AND STEEL COMP 1022 PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: DICHROMATE OVERALL AND ZINC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,CLASS B,TYPE 11 FED SPEC ALL TREATMENT RESPONSES OVERALL