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National Stock Number:
5310-00-205-8740
Federal Supply Class:
5310
National Item Identification Number:
002058740
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:
| 1243603-4 | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS | | 233942 | 56232 | LOCKHEED MARTIN CORPORATION | | 440637 | 82577 | RAYTHEON COMPANY | | 5710-37 | 86928 | SEASTROM MANUFACTURING CO INC | | 5710-37-15P | 86928 | SEASTROM MANUFACTURING CO INC | | 8720 | 17576 | GOODRICH CORP DBA GOODRICH CORP | | 911625-49 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | CYRD836-3 | 05624 | GE AVIATION SYSTEMS LLC | | FF-W-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CRITICALITY CODE JUSTIFICATION | FEAT | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM | | HOLE DIAMETER | 0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM | | OVERALL DIAMETER | 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 304 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | FLIGHT SAFETY CRITICAL AIRCRAFT PART | | THICKNESS | 0.016 INCHES NOMINAL |
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