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National Stock Number:
5310-00-137-8038
Federal Supply Class:
5310
National Item Identification Number:
001378038
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:
| 746504-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM | | OVERALL DIAMETER | 1.140 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4015,TEMPER O ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 5052 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PERIPHERAL SHAPE STYLE | ROUND W/FLATS | | WIDTH ACROSS FLATS | 0.500 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HS334,TYPE 1 FSCM 73030 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | THICKNESS | 0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM |
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