5310-00-801-1449 NUT,SELF-LOCKING,HEXAGON Index 5306-00-801-1457 BOLT,MACHINE

National Stock Number:
5310-00-801-1451

Federal Supply Class:
5310

National Item Identification Number:
008011451

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:
682807424617GENERAL MOTORS CORP
682807463005ROLLS-ROYCE CORPORATION
682807473342ALLISON TRANSMISSION INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTAS FABRICATED
HOLE DIAMETER0.891 INCHES NOMINAL
OVERALL DIAMETER1.860 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.072 INCHES MINIMUM AND 0.076 INCHES MAXIMUM


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