5310-01-176-5040 NUT SPACER,PLATE Index 5310-01-176-5043 WASHER,FLAT

National Stock Number:
5310-01-176-5041

Federal Supply Class:
5310

National Item Identification Number:
011765041

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:
B-1504-AV61208TWIN DISC, INCORPORATED
B1504AVZ1Z47TWIN DISC (PACIFIC) PTY LTD


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
MATERIALSTEEL COMP 1045 OVERALL
SPECIAL FEATURESONE HOLE DRILLED THRU FACE OF WASHER
THICKNESS0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM


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