5310-01-236-3278 WASHER,FLAT Index 5310-01-236-3280 WASHER,FLAT

National Stock Number:
5310-01-236-3279

Federal Supply Class:
5310

National Item Identification Number:
012363279

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:
9150073030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI302 ASSN STD 1ST MATERIAL RESPONSE OR
AISI303 ASSN STD 2ND MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.755 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.165 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.038 INCHES NOMINAL
HARDNESS RATING75.0 ROCKWELL B MINIMUM OR
100.0 ROCKWELL B MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE73030
DESIGN CONTROL REFERENCE91500


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