5920-00-602-7628 DISCHARGER,ELECTROSTATIC Index 5310-00-602-7631 WASHER,FLAT

National Stock Number:
5310-00-602-7630

Federal Supply Class:
5310

National Item Identification Number:
006027630

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:
686371773342ALLISON TRANSMISSION INC
6863717K0680ROLLS-ROYCE AIRLINES
EU43372K0680ROLLS-ROYCE AIRLINES


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
HEAT TREATMENTAS FABRICATED
HOLE DIAMETER0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
OVERALL DIAMETER0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
THICKNESS0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM


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