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National Stock Number:
5310-00-721-5902
Federal Supply Class:
5310
National Item Identification Number:
007215902
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:
| 12514 | 44940 | CUMMINS POWER GENERATION INC. | | 1942073 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 526A32 | 44940 | CUMMINS POWER GENERATION INC. | | 9028498 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | M526A32 | 91340 | MET-PRO CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM | | OVERALL DIAMETER | 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OR CADMIUM OVERALL | | THICKNESS | 0.061 INCHES MINIMUM AND 0.081 INCHES MAXIMUM |
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