5310-00-925-7083 WASHER,KEYWAY Index 5310-00-925-7086 WASHER,FLAT

National Stock Number:
5310-00-925-7085

Federal Supply Class:
5310

National Item Identification Number:
009257085

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:
682539263005ROLLS-ROYCE CORPORATION
682539273342ALLISON TRANSMISSION INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM
OVERALL DIAMETER0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6350 ASSN STD 1ST MATERIAL RESPONSE AND AMS 6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.084 INCHES MINIMUM AND 0.096 INCHES MAXIMUM


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