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National Stock Number:
5310-00-878-3581
Federal Supply Class:
5310
National Item Identification Number:
008783581
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:
| 11612707 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 5310008783581 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | | CS-2300-0001 | 16236 | DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | AS FABRICATED | | HOLE DIAMETER | 0.516 INCHES MINIMUM AND 0.547 INCHES MAXIMUM | | OVERALL DIAMETER | 1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A332 ASSN STD ALL MATERIAL RESPONSES OR ASTM 331 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4137 OR STEEL COMP 4140 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
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