4710-01-522-9943 TUBE ASSEMBLY,METAL Index 5305-01-522-9945 SCREW,MACHINE

National Stock Number:
5310-01-522-9944

Federal Supply Class:
5310

National Item Identification Number:
015229944

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:
21677-1060-01011871RECON/OPTICAL, INC.
21677-1060-01080294BOURNS INSTRUMENTS INC
21677-1060-010Z9K41ELECTRO OPTIC SYSTEMS PTY LTD
98125A0312V507MCMASTER-CARR SUPPLY COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 ROCKWELL B NOMINAL
HOLE DIAMETER0.406 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER1.000 INCHES NOMINAL
THICKNESS0.187 INCHES NOMINAL


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