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National Stock Number:
5310-00-167-0751
Federal Supply Class:
5310
National Item Identification Number:
001670751
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:
| 10087989 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 310-0015-360 | 13499 | ROCKWELL COLLINS, INC. | | 5310PL0551752 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | AN960PD816 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM | | OVERALL DIAMETER | 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE OR ANODIZE OVERALL | | THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
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