5310-00-754-4336 WASHER,FLAT Index 5305-00-754-4339 SCREW,MACHINE

National Stock Number:
5310-00-754-4337

Federal Supply Class:
5310

National Item Identification Number:
007544337

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:
5310007544337SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
805675-0032345DEFENSE REDUCTION AGENCY
816822118876U S ARMY AVIATION AND MISSILE COMMAND
881870119203PICATINNY ARSENAL
AN961-41688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
MS45901-596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.250 INCHES NOMINAL
OVERALL DIAMETER0.500 INCHES NOMINAL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTTIN OR SILVER OVERALL
THICKNESS0.064 INCHES NOMINAL


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