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National Stock Number:
5310-00-316-9040
Federal Supply Class:
5310
National Item Identification Number:
003169040
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:
| 2159900302 | 57057 | NAVCOM DEFENSE ELECTRONICS, INC. | | 310-0053-000 | 13499 | ROCKWELL COLLINS, INC. | | 8193495 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | BRSNIPL | 79807 | WROUGHT WASHER MFG., INC. | | AN960B2 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AN960B3 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | FFW92A | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY SURFACE TREATMENT | | HOLE DIAMETER | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | OVERALL DIAMETER | 0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY 116 AND COPPER ALLOY 122 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | NICKEL OVERALL | | THICKNESS | 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
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