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National Stock Number:
5310-01-127-4218
Federal Supply Class:
5310
National Item Identification Number:
011274218
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:
| 0.812ODX0.391IDX0.062CRES | 53711 | NAVAL SEA SYSTEMS COMMAND | | 215-4775639 ITEM 6 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-4558742 ITEM 31 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | FF-W-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | 60-28-5425 | 96169 | ELECTRIC BOAT CORPORATION | | 87725-2601 ITEM 21 | 96169 | ELECTRIC BOAT CORPORATION | | FF-W-92-TYA-GR1-CLB | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | FFW92TYAGR1CLB0.8120.391X0.062 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.391 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL | | OVERALL DIAMETER | 0.812 INCHES NOMINAL | | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL | | NONDEFINITIVE SPEC/STD DATA | A TYPE AND 1 GRADE AND B CLASS | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.062 INCHES NOMINAL |
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