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National Stock Number:
5310-00-737-6528
Federal Supply Class:
5310
National Item Identification Number:
007376528
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.
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Manufacturer Information:
| 7376528 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 847196 | 83298 | ALLIED SIGNAL INC AEROSPACE EQUIPMENT SYSTEMS EATONTOWN SITE | | A140282 | 10988 | CNH INDUSTRIAL AMERICA LLC | | SS4409-028 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | FF-W-92B TYPE A CLASS A | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| MATERIAL | STEEL COMP 1008 OR | | STEEL COMP 1009 OR | | STEEL COMP 1015 OR | | STEEL COMP 1018 OR | | STEEL COMP 1020 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.381 INCHES MINIMUM AND | | 0.401 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.740 INCHES MINIMUM AND | | 0.760 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.031 INCHES NOMINAL | | HARDNESS RATING | 75.0 ROCKWELL B MINIMUM AND | | 85.0 ROCKWELL B MAXIMUM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-W-92B TYPE A CLASS A |
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