5310-00-168-2890 WASHER,FLAT Index 5310-00-168-2892 WASHER,FLAT

National Stock Number:
5310-00-168-2891

Federal Supply Class:
5310

National Item Identification Number:
001682891

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:
685908563005ROLLS-ROYCE CORPORATION
685908573342ALLISON TRANSMISSION INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.253 INCHES NOMINAL
OVERALL DIAMETER0.610 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5512 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OR STEEL COMP 347 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM


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