5310-00-685-7277 WASHER,SHOULDERED Index 5310-00-685-7283 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-00-685-7282

Federal Supply Class:
5310

National Item Identification Number:
006857282

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:
X1026T470AT62SIEMENS ENERGY, INC.
X1026T4730760INGERSOLL RAND CO
X1026T47830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
X1026T4788663DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.265 INCHES NOMINAL
OVERALL DIAMETER0.406 INCHES NOMINAL
MATERIALCOPPER OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.031 INCHES NOMINAL


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