5305-01-384-4257 SCREW,MACHINE Index 5305-01-384-4259 SCREW,MACHINE

National Stock Number:
5310-01-384-4258

Federal Supply Class:
5310

National Item Identification Number:
013844258

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:
1051957056161GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
DIN9021-ST-A10.5-2AL56161GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
DIN9021-ST-A10.5-A2LD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER10.50 MILLIMETERS MINIMUM AND 10.77 MILLIMETERS MAXIMUM
MATERIALSTEEL COMP 302 OVERALL
OVERALL DIAMETER29.48 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM
PERIPHERAL SHAPE STYLEROUND
THICKNESS2.30 MILLIMETERS MINIMUM AND 2.70 MILLIMETERS MAXIMUM


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