5310-01-589-0973 WASHER,FLAT Index 5310-01-589-2800 NUT,EXHAUST PIPE

National Stock Number:
5310-01-589-2420

Federal Supply Class:
5310

National Item Identification Number:
015892420

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:
1305082619200US ARMY ARDEC RDECOM
93849A10439428MCMASTER-CARR SUPPLY CO
Z8806SS4TU30ACCURATE MANUFACTURED PRODUCTS GROUP INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 ROCKWELL B MINIMUM
HOLE DIAMETER6.4 MILLIMETERS NOMINAL
OVERALL DIAMETER13.0 MILLIMETERS NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER
PERIPHERAL SHAPE STYLEROUND
THICKNESS2.0 MILLIMETERS MINIMUM AND 2.9 MILLIMETERS MAXIMUM


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