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National Stock Number:
5310-01-331-9415
Federal Supply Class:
5310
National Item Identification Number:
013319415
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:
| 03A158-10 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 03AA158-10 | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM | | OVERALL DIAMETER | 0.516 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4911 ASSN STD SINGLE MATERIAL RESPONSE AND AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.0135 INCHES MINIMUM AND 0.0185 INCHES MAXIMUM |
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