5310-01-596-3734 WASHER,LOCK 5310-01-596-3906 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-596-3762

Federal Supply Class:
5310

National Item Identification Number:
015963762

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:
94744A2850KVE6MCMASTER-CARR SUPPLY CO
94744A2852V507MCMASTER-CARR SUPPLY COMPANY
WASB12NZ4TU30ACCURATE MANUFACTURED PRODUCTS GROUP INC
94744A28581205THE BOEING COMPANY


Techincal Specification:
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.531 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.000 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
THICKNESS0.050 INCHES MINIMUM AND
0.120 INCHES MAXIMUM
HARDNESS RATING40.0 ROCKWELL B NOMINAL
SPECIAL FEATURESFOR 0.500 INCH SCREW SIZE
PART NAME ASSIGNED BY CONTROLLING AGENCYZINC-PLATED STEEL WASHER FOR SOFT MATERIALS (TYPE B)


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