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National Stock Number:
5310-01-480-7144
Federal Supply Class:
5310
National Item Identification Number:
014807144
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:
| 10335278 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | C20885 | 59885 | ROSEMOUNT AEROSPACE INC | | C20885-0022 | 59885 | ROSEMOUNT AEROSPACE INC | | C20885-0022 | 6R888 | J. T. D. STAMPING CO INC | | C20885-0022 | 86928 | SEASTROM MANUFACTURING CO INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | BLACK OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM | | OVERALL DIAMETER | 0.437 INCHES NOMINAL | | MATERIAL | STEEL COMP 302 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | THICKNESS | 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM |
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