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National Stock Number:
5310-01-059-8354
Federal Supply Class:
5310
National Item Identification Number:
010598354
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:
| 136879 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.071 INCHES MINIMUM AND 0.075 INCHES MAXIMUM | | OVERALL DIAMETER | 0.375 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 360 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-26074 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-14550 CL 4 MIL SPEC 2ND TREATMENT RESPONSE AND MIL-T-10727 TY 1 MIL SPEC 3RD TREATMENT RESPONSE AND 137284 NATIONAL SPEC 4TH TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND COPPER AND TIN AND OIL OVERALL | | THICKNESS | 0.093 INCHES NOMINAL |
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