1740-01-483-0629 TRAILER,GROUND HANDLING Index 5305-01-483-0631 SCREW,SHOULDER

National Stock Number:
5310-01-483-0630

Federal Supply Class:
5310

National Item Identification Number:
014830630

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:
427738-21C954DONLEE PRECISION
427738-280020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.765 INCHES NOMINAL
OVERALL DIAMETER1.312 INCHES NOMINAL
MATERIALNICKEL ALLOY 718 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM


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