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National Stock Number:
5310-01-210-7444
Federal Supply Class:
5310
National Item Identification Number:
012107444
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:
| 1292800-107 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | WHITE OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.328 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729,COND N MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR LC+73-2020,FSCM 36659 MFR REF 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL OVERALL | | III MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.900 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 595,COLOR NO. 17875 FED STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PAINT OVERALL | | THICKNESS | 0.063 INCHES NOMINAL |
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