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National Stock Number:
5310-00-001-9774
Federal Supply Class:
5310
National Item Identification Number:
000019774
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:
| S95113 | 12511 | SIMMONDS PRECISION PRODUCTS INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.5005 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM | | OVERALL DIAMETER | 0.8760 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 416 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES INNER | | SURFACE FINISH | 63.0 MICROINCHES OUTER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NS 177,FSCM 12511 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
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