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National Stock Number:
5310-01-390-5131
Federal Supply Class:
5310
National Item Identification Number:
013905131
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:
| 502220 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S | | 5310PL0193929 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | AN960-416L | 1E0F1 | ROLLS ROYCE CORP | | FF-W-92 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | AN960-416L | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AN960-416L | A0311 | TECNO TRADE S.R.L. | | NAS1149F0432P | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | FFW92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | NAS1149F0432P | A0126 | LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE | | NAS1149F0432P | A0170 | LEONARDO SPA AEROSTRUCTURE DIVISION | | NAS1149F0432P | A0311 | TECNO TRADE S.R.L. | | NAS1149F0432P | K0668 | LEONARDO UK LTD |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | MATERIAL | STEEL OVERALL | | OVERALL DIAMETER | 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | | THICKNESS | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
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