5330-00-786-6740 GASKET Index 4410-00-786-6748 LINER,HEAD,BOILER

National Stock Number:
5310-00-786-6742

Federal Supply Class:
5310

National Item Identification Number:
007866742

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:
H1A44A124047COOPER INDUSTRIES INC DBA COOPER TOOLS
H1A44A16X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
HOLE DIAMETER0.406 INCHES NOMINAL
OUTSIDE LEFT CORNER CHAMFER ANGLE60.0 DEGREES NOMINAL
OVERALL DIAMETER1.125 INCHES NOMINAL
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.188 INCHES NOMINAL


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