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National Stock Number:
5310-01-073-2948
Federal Supply Class:
5310
National Item Identification Number:
010732948
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:
| 42277-518 | 3HRL4 | GOODRICH CORPORATION | | 42277C518 | 00462 | GOODRICH CORPORATION DBA TRW LUCAS AEROSPACE | | 42277C518 | 82402 | TRIUMPH GEAR SYSTEMS INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.600 INCHES MINIMUM AND 0.650 INCHES MAXIMUM | | OVERALL DIAMETER | 1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 CL 1 TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
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