2925-00-143-5720 WASHER,SPACING,MAGN Index 5310-00-143-5723 WASHER,FLAT

National Stock Number:
5310-00-143-5722

Federal Supply Class:
5310

National Item Identification Number:
001435722

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.


Manufacturer Information:
0.500-.234-.065S-SFZ0MAY0WILLIE WASHER MANUFACTURING CO
240333D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
WA124801843AMBAC INTERNATIONAL CORPORATION
WA124804998ADAMS AIRCRAFT INTERNATIONAL INC
1D47173HKX1YANCEY BROS. CO.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM
OVERALL DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM


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