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National Stock Number:
5310-01-580-2578
Federal Supply Class:
5310
National Item Identification Number:
015802578
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:
| 4G10251 ITEM 004 | 31442 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 4G10459H08 | 31442 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | PL4G10251 ITEM 004 | 31442 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | OVERALL DIAMETER | 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | (INAVY) WASHER,FLAT | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B265 GR 23 OR B348 GR 23 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY UNS R54520 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
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