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National Stock Number:
5310-01-078-2990
Federal Supply Class:
5310
National Item Identification Number:
010782990
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:
| 791-8666-001 | 13499 | ROCKWELL COLLINS, INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.157 INCHES MINIMUM AND 0.160 INCHES MAXIMUM | | OVERALL DIAMETER | 0.344 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613,TEMPER 1/2 HARD FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 580-0034-00,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE FILM OVERALL | | THICKNESS | 0.0183 INCHES MINIMUM AND 0.0219 INCHES MAXIMUM |
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