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National Stock Number:
5310-00-138-4315
Federal Supply Class:
5310
National Item Identification Number:
001384315
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:
| 5610-22-31 | 86928 | SEASTROM MANUFACTURING CO INC | | 723225-472 | 07154 | MASTER WASHER AND STAMPING CO | | 723225-472 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | 8-52T-431 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | 944661-3 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | MS51859-5 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM | | OVERALL DIAMETER | 0.425 INCHES MINIMUM AND 0.469 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.031 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
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