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National Stock Number:
5310-01-474-8828
Federal Supply Class:
5310
National Item Identification Number:
014748828
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:
| 2641-809-40 | 96169 | ELECTRIC BOAT CORPORATION | | 2641-809-40 ITEM 23 | 96169 | ELECTRIC BOAT CORPORATION | | 2643-405-01 ITEM 57CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | 7285244 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 845-7285244 ITEM 57 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 2643-405-01 ITEM 57 | 96169 | ELECTRIC BOAT CORPORATION | | 845-7285244 ITEM 57CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CRITICALITY CODE JUSTIFICATION | ZZZY | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.531 INCHES NOMINAL | | OVERALL DIAMETER | 1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A,HR FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 400 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D | | SURFACE FINISH | 125.0 MICROINCHES INNER | | SURFACE FINISH | 125.0 MICROINCHES OUTER | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | THICKNESS | 0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM |
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