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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:
| MATERIAL | STEEL COMP 416 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NS 177,FSCM 12511 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.5005 INCHES MINIMUM AND | | 0.5015 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.8760 INCHES MINIMUM AND | | 0.8765 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.055 INCHES MINIMUM AND | | 0.060 INCHES MAXIMUM | | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND | | 42.0 ROCKWELL C MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES INNER | | 63.0 MICROINCHES OUTER | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 12511 | | DESIGN CONTROL REFERENCE | S95113 |
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