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National Stock Number:
5310-01-194-4830
Federal Supply Class:
5310
National Item Identification Number:
011944830
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:
| STD2319/60/14 | K0289 | BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES | | STD2319/60/14 | K1987 | BAE SYSTEMS PLC | | STD2319/60/14 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.312 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | DTD5033 FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | III SUPPLEMENTARY FEATURES | TO BE BENT AT INSTALLATION | | PERIPHERAL SHAPE STYLE | DEE | | PROPRIETARY CHARACTERISTICS | PACS | | SPECIAL FEATURES | 0.060 IN. FROM HOLE CENTER TO FLAT,0.625 IN. WIDTH OF FLAT | | THICKNESS | 0.140 INCHES NOMINAL |
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