4820-00-978-1775 VALVE,BUTTERFLY Index 5310-00-978-1783 WASHER,FLAT

National Stock Number:
5310-00-978-1782

Federal Supply Class:
5310

National Item Identification Number:
009781782

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:
0AL-23616632FLEXFAB LLC
682801124617GENERAL MOTORS CORP
682801163005ROLLS-ROYCE CORPORATION
682801173342ALLISON TRANSMISSION INC
ALL-101616632FLEXFAB LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER0.342 INCHES MINIMUM AND 0.351 INCHES MAXIMUM
OVERALL DIAMETER1.000 INCHES NOMINAL
MATERIALGLASS OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.090 INCHES MINIMUM AND 0.105 INCHES MAXIMUM


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