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National Stock Number:
5310-01-094-8701
Federal Supply Class:
5310
National Item Identification Number:
010948701
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:
| 898750-1 | 3B150 | RAYTHEON COMPANY | | 898750-1 | 49956 | RAYTHEON COMPANY |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 360 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | COPPER AND | | TIN OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-14550 CL4 MIL SPEC 1ST TREATMENT RESPONSE AND | | MIL-T-10727 TYPE I MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.380 INCHES MINIMUM AND | | 0.400 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.000 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.090 INCHES NOMINAL |
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