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National Stock Number:
5310-00-988-0579
Federal Supply Class:
5310
National Item Identification Number:
009880579
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:
| EL08-010-036 | 93568 | HARSCO CORP BMY-COMBAT SYSTEMS DIV | | V08-010-036 | 25169 | PROJECT MANAGER AMPHIBIOUS LIGHTERS ST LOUIS MO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 3.500 INCHES MINIMUM AND 3.562 INCHES MAXIMUM | | OVERALL DIAMETER | 5.969 INCHES MINIMUM AND 6.031 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 462 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
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