5305-01-414-7518 SCREW,MACHINE Index 5305-01-414-7520 SCREW,CLOSE TOLERANCE

National Stock Number:
5310-01-414-7519

Federal Supply Class:
5310

National Item Identification Number:
014147519

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:
1003926961C19MIL-COTS CORPORATION
12759-001990Y3H3FASTENAL COMPANY
1696027C1338X5ND DEFENSE LLC
30209R1338X5ND DEFENSE LLC
30210R1338X5ND DEFENSE LLC
30209R15F5P2ASF LOGISTICS, LLC
402200Y3H3FASTENAL COMPANY
MWA 5063D6E9MERITOR INDUSTRIAL PRODUCTS, LLC
MWA5063D6E9MERITOR INDUSTRIAL PRODUCTS, LLC
MWA 50678500MERITOR HEAVY VEHICLE SYSTEMS, LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER6.6 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSNPAC
OVERALL DIAMETER13.0 MILLIMETERS NOMINAL
THICKNESS1.2 MILLIMETERS NOMINAL


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