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National Stock Number:
5310-01-574-6882
Federal Supply Class:
5310
National Item Identification Number:
015746882
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:
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 13.400 INCHES MINIMUM AND 13.500 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 20.800 INCHES MINIMUM AND 21.000 INCHES MAXIMUM | | SPECIAL FEATURES | SOFT ALUMINIUM BS 1470 GRADE 1200 CONDITION "O"; BSP SERIES; IMPERIAL (UNF) SERIES | | THICKNESS | 3.200 INCHES NOMINAL |
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