5330-00-531-2285 GASKET Index 5330-00-531-2290 SEAL,PLAIN ENCASED

National Stock Number:
5310-00-531-2288

Federal Supply Class:
5310

National Item Identification Number:
005312288

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:
332245755380HATCH & KIRK, INC.
332245772915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.437 INCHES NOMINAL
OVERALL DIAMETER0.718 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-21569,CL 2 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALRUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.140 INCHES NOMINAL


Click here to Register for Free 30-day Trial