3040-99-785-9943 SHAFT,SHOULDERED Index 3040-99-785-9976 SHAFT,SHOULDERED

National Stock Number:
5310-99-785-9944

Federal Supply Class:
5310

National Item Identification Number:
997859944

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:
3-A-077-0489K9075IPECO HOLDINGS LIMITED
3A077-0489K9075IPECO HOLDINGS LIMITED


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.251 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONBS 2874 PB102 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.670 INCHES MINIMUM AND 0.675 INCHES MAXIMUM
THICKNESS0.117 INCHES MINIMUM AND 0.122 INCHES MAXIMUM


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