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National Stock Number:
5310-01-115-7951
Federal Supply Class:
5310
National Item Identification Number:
011157951
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:
| 69-63479-1 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.125 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 3.000 INCHES NOMINAL | | SPECIAL FEATURES | WITH 2 EACH TIPS ON TOP OF WASHERONE ON EACH SIDE,0.875 INCH LONG BY 0.750 INCH WIDY BY 0.490 INCH THICK WITH 5 EACH THREADED HOLES,4 EACH ON ONE SIDE,ONE ON THE OTHER,0.250 INCH ID BY 28 THREADS PER INCH,NF THREADS WITH COUNTERSUNK ON BOTTOM OF WASHER | | THICKNESS | 0.248 INCHES NOMINAL |
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