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National Stock Number:
5310-00-553-1579
Federal Supply Class:
5310
National Item Identification Number:
005531579
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:
| 35763 | 00462 | GOODRICH CORPORATION DBA TRW LUCAS AEROSPACE | | 35763 | 1VN02 | AIRDALE EXPRESS LLC | | 35763 | 31435 | LUCAS AEROSPACE POWER EQUIPMENT CORPORATION | | 35763 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 0.662 INCHES NOMINAL | | OVERALL DIAMETER | 0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66,AISI/SAE 1060 FED STD 1ST MATERIAL RESPONSE OR FED STD 66,AISI/SAE 1074 FED STD 2ND MATERIAL RESPONSE OR FED STD 66,AISI/SAE 1074 FED STD 3RD MATERIAL RESPONSE OR FED STD 66,AISI/SAE 1075 FED STD 4TH MATERIAL RESPONSE OR FED STD 66,AISI/SAE 1095 FED STD 5TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.050 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
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