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National Stock Number:
5310-00-253-8196
Federal Supply Class:
5310
National Item Identification Number:
002538196
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:
| 7099332P002 | 03538 | LOCKHEED MARTIN CORPORATION | | 763711 | A2309 | LEONARDO SPA DIVISIONE SISTEMI DI DIFESA DBA WASS | | Q4211 | 07322 | MINNESOTA RUBBER CO | | Q4211-412A | 07322 | MINNESOTA RUBBER CO |
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Techincal Specification:
| MATERIAL | RUBBER SYNTHETIC OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 412A,FSCM 24446 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.786 INCHES MINIMUM AND | | 0.806 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.064 INCHES MINIMUM AND | | 1.084 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.135 INCHES MINIMUM AND | | 0.143 INCHES MAXIMUM | | HARDNESS RATING | 65.0 SHORE DUROMETER A MINIMUM AND | | 75.0 SHORE DUROMETER A MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 03538 | | DESIGN CONTROL REFERENCE | 7099332P002 |
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