5305-01-099-7020 SCREW Index 5305-01-099-7022 SCREW

National Stock Number:
5310-01-099-7021

Federal Supply Class:
5310

National Item Identification Number:
010997021

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:
092000913446PERKINS ENGINES INC
092000972582ROLLS-ROYCE SOLUTIONS AMERICA INC
19755104627HYSTER-YALE GROUP, INC.
19755130076HYSTER-YALE GROUP, INC.
3963744185TLD WOLLARD LLC


Techincal Specification:
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.651 INCHES MINIMUM AND
0.656 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.240 INCHES MINIMUM AND
1.250 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.116 INCHES NOMINAL


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