9515-00-127-7972 PLATE,METAL Index 5310-00-127-7974 WASHER,FLAT

National Stock Number:
5310-00-127-7973

Federal Supply Class:
5310

National Item Identification Number:
001277973

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:
70227599167HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM
HEAT TREATMENTHARD AND DRAWN
HOLE DIAMETER0.9541 INCHES MINIMUM AND 0.9546 INCHES MAXIMUM
OVERALL DIAMETER1.409 INCHES MINIMUM AND 1.412 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP E52100 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH32.0 MICROINCHES BOTTOM
SURFACE FINISH32.0 MICROINCHES OUTER
SURFACE FINISH32.0 MICROINCHES TOP
THICKNESS0.084 INCHES MINIMUM AND 0.086 INCHES MAXIMUM


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