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National Stock Number:
5310-01-221-9754
Federal Supply Class:
5310
National Item Identification Number:
012219754
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:
| 1276-08-224 | 44114 | BAE SYSTEMS LAND & ARMAMENTS L.P. | | 1276-08-224 | A0199 | FINMECCANICA SPA | | 5310PL0829936 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 5518941 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM AND 25.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 10.5 MILLIMETERS NOMINAL | | MATERIAL | STEEL COMP 1040 OVERALL OR STEEL COMP 1541 OVERALL OR STEEL COMP 1045 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 16.0 MILLIMETERS NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL FED SPEC 1ST TREATMENT RESPONSE OVERALL OR MIL-C-87115,CL 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL OR MIL-C-83488,CL TY 2 MIL SPEC 3RD TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL OR ZINC OVERALL AND CHROMATE OVERALL OR ALUMINUM ALLOY OVERALL AND CHROMATE OVERALL | | THICKNESS | 2.42 MILLIMETERS MINIMUM AND 2.48 MILLIMETERS MAXIMUM |
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