4820-00-595-5091 DIAPHRAGM,VALVE,FLAT Index 4820-00-595-5093 SEAT,VALVE

National Stock Number:
5310-00-595-5092

Federal Supply Class:
5310

National Item Identification Number:
005955092

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:
515023824617GENERAL MOTORS CORP
515023872582ROLLS-ROYCE SOLUTIONS AMERICA INC
524789300000ORDNANCE CORPS
A24789300000ORDNANCE CORPS
51502387X677GENERAL MOTORS LLC
FFW92TYPEAGRADE2CLASSA81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY OUTSIDE DIM.
HOLE DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
OVERALL DIAMETER0.812 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-636 COND 1 FED SPEC 1ST MATERIAL RESPONSE AND QQ-5-636 COND 2 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 GRADE AND A CLASS
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.064 INCHES NOMINAL


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