2540-01-528-1438 ARMOR,SUPPLEMENTAL,SMALL ARMS-FR Index 2540-01-528-1440 ARMOR,SUPPLEMENTAL,SMALL ARMS-FR

National Stock Number:
5310-01-528-1439

Federal Supply Class:
5310

National Item Identification Number:
015281439

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
1241796319207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12417963-003076M6BAE SYSTEMS LAND & ARMAMENTS L.P.
12417963-0030FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP
12417963-00319207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12417963-00345152OSHKOSH CORP
12417963-00375Q65OSHKOSH DEFENSE LLC
DIN1440-ST-A2DD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER5.000 MILLIMETERS NOMINAL
OVERALL DIAMETER10.000 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTZINC OVERALL
THICKNESS0.800 MILLIMETERS NOMINAL


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