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National Stock Number:
5310-00-021-8322
Federal Supply Class:
5310
National Item Identification Number:
000218322
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:
| 218322 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S | | 218322 | 24617 | GENERAL MOTORS CORP | | 46833 | 78945 | PROVERBS 31 INVESTMENTS LLC DIV GATEWAY STRATEGIC SOURCING DBA GATEWAY STRATEGIC SOURCING | | AN960-4 | 95764 | AIR ASSOCIATES INC | | MILW1085TYPEA | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY SURFACE FINISH AND HOLE DIA | | HOLE DIAMETER | 0.125 INCHES NOMINAL | | OVERALL DIAMETER | 0.312 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633,COMP FS1010-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1010 OVERALL | | NONDEFINITIVE SPEC/STD DATA | A TYPE | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | | THICKNESS | 0.032 INCHES NOMINAL |
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