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National Stock Number:
5310-00-376-6818
Federal Supply Class:
5310
National Item Identification Number:
003766818
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:
| 211666 | 00088 | ROYAL OAK GAGE INC | | 211666 | 08244 | MOELLER MFG. COMPANY, LLC | | 211666 | 11449 | TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP | | 211666 | 21128 | JDMC ENTERPRISES DBA HIGH SPEED MACHINE PRODUCTS | | 211666 | 77445 | RTX CORPORATION | | 211666 | 97139 | THE SLABE MACHINE PRODUCTS LLC | | QAP00344 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | | OVERALL DIAMETER | 0.746 INCHES MINIMUM AND 0.748 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE 51613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | CHAMFER 43.0 TO 47.0 DEG BY 0.020 TO 0.040 IN. BOTH ENDS | | THICKNESS | 0.059 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
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