5310-00-143-5895 WASHER,FLAT Index 5330-00-143-5899 WASHER,FLAT

National Stock Number:
5310-00-143-5898

Federal Supply Class:
5310

National Item Identification Number:
001435898

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:
187261816764GENERAL MOTORS CORP DELCO REMY DIV
18726181LW55BORGWARNER PDS (ANDERSON), L.L.C.
187261824617GENERAL MOTORS CORP
187261872582ROLLS-ROYCE SOLUTIONS AMERICA INC
18726187X677GENERAL MOTORS LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.631 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
OVERALL DIAMETER1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.087 INCHES MINIMUM AND 0.101 INCHES MAXIMUM


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