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National Stock Number:
5310-00-542-1878
Federal Supply Class:
5310
National Item Identification Number:
005421878
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:
| 2259-N141 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | 723225-466 | 05869 | RAYTHEON COMPANY | | 723225-466 | 07154 | MASTER WASHER AND STAMPING CO | | 723225-466 | 82577 | RAYTHEON COMPANY | | G3M27C58-316 | 72606 | GASKET MANUFACTURING CO. | | SMC417174-6 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.146 INCHES MINIMUM AND 0.153 INCHES MAXIMUM | | OVERALL DIAMETER | 0.385 INCHES MINIMUM AND 0.405 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-17091-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC POLYAMIDE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.031 INCHES NOMINAL |
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