1430-00-800-5372 PLATE,MOUNTING Index 1430-00-800-5374 NUT,SLEEVE

National Stock Number:
5310-00-800-5373

Federal Supply Class:
5310

National Item Identification Number:
008005373

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:
800537318876U S ARMY AVIATION AND MISSILE COMMAND
800537319200US ARMY ARDEC RDECOM
800537364959AMERICAN TELEPHONE AND TELEGRAPH CO


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING94.0 ROCKWELL B NOMINAL
HOLE DIAMETER0.375 INCHES NOMINAL
OVERALL DIAMETER0.625 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 324 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.032 INCHES NOMINAL


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