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National Stock Number: 5310-01-087-0304
Federal Supply Class: 5310
National Item Identification Number: 010870304
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:
989C639H06 | 18323 | NORTHROP GRUMMAN SYSTEMS CORPORATION | LWNY-006BK | 85480 | BRADY UNITED STATES | NW6-3122 | 85480 | BRADY UNITED STATES |
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Techincal Specification:
MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | CENTER HOLE SHAPE STYLE | ROUND | HOLE DIAMETER | 0.150 INCHES MINIMUM AND | | 0.163 INCHES MAXIMUM | PERIPHERAL SHAPE STYLE | ROUND | OVERALL DIAMETER | 0.307 INCHES MINIMUM AND | | 0.327 INCHES MAXIMUM | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | THICKNESS | 0.018 INCHES MINIMUM AND | | 0.022 INCHES MAXIMUM | COLOR | BLACK OVERALL |
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