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National Stock Number:
5310-00-262-5882
Federal Supply Class:
5310
National Item Identification Number:
002625882
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:
| 0188-8 | 02769 | LOCKHEED MARTIN CORPORATION | | 0188-8 | 56232 | LOCKHEED MARTIN CORPORATION | | 40953 | 56232 | LOCKHEED MARTIN CORPORATION | | S8157N411-050 | 70210 | HONEYWELL INTERNATIONAL INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.169 INCHES MINIMUM AND 0.179 INCHES MAXIMUM | | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL | | OVERALL DIAMETER | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.052 INCHES NOMINAL |
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