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National Stock Number:
5310-00-390-0531
Federal Supply Class:
5310
National Item Identification Number:
003900531
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:
| S24A25-0218-0100 | 81982 | HYDRO-AIRE AEROSPACE CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | -1L-S-5059 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | OVERALL DIAMETER | 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM | | MATERIAL | STEEL COMP 301 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HS138 FSCM 81982 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM |
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