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National Stock Number:
5310-01-217-1093
Federal Supply Class:
5310
National Item Identification Number:
012171093
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:
| 8224863-01 | 98750 | SAN ANTONIO AIR LOGISTICS CENTER | | 8224863-01 | 98752 | WARNER ROBINS AIR LOGISTICS CENTER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 2.375 INCHES NOMINAL | | OVERALL DIAMETER | 4.220 INCHES MINIMUM AND 4.280 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-5687, SINTERED BRONZE, TYPE I, COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | WASHER,FLAT; BRONZE,SINTERED; 4.250 IN. NOM O/A DIA,2.375 IN. NOM CENTER HOLE DIA,0.120 MIN,0.125 IN. MAX CROSS-SECT THK | | THICKNESS | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
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