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National Stock Number:
5310-00-245-8228
Federal Supply Class:
5310
National Item Identification Number:
002458228
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:
| 10160815 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 250AS112-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.260 INCHES MINIMUM AND 0.276 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | | | MATERIAL | | | PERIPHERAL SHAPE STYLE | ROUND | | MINIMUM TENSILE STRENGTH | 40000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 24000 POUNDS PER SQUARE INCH | | OVERALL DIAMETER | 1.364 INCHES MINIMUM AND 1.396 INCHES MAXIMUM | | THICKNESS | 0.050 INCHES NOMINAL |
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