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National Stock Number:
5310-00-443-5855
Federal Supply Class:
5310
National Item Identification Number:
004435855
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:
| PB-43594-1 | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS |
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Techincal Specification:
| MATERIAL | COPPER ALLOY B OR | | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-611 CANC FED SPEC 1ST MATERIAL RESPONSE AND | | B11H34C,FSCM 30221 MFR REF 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.062 INCHES MINIMUM AND | | 0.065 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.118 INCHES MINIMUM AND | | 0.122 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.023 INCHES MINIMUM AND | | 0.027 INCHES MAXIMUM | | HARDNESS RATING | 62.0 ROCKWELL F MINIMUM OR | | 75.0 ROCKWELL F MAXIMUM |
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