4730-01-622-2971 CLAMP,HOSE 1680-01-621-6184 GEARBOX ASSEMBLY,AIRCRAFT

National Stock Number:
5310-01-621-9731

Federal Supply Class:
5310

National Item Identification Number:
016219731

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:
AEW24X37W000GD7AA105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS


Techincal Specification:
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION1055,G10555 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B 633,TYPE 2,SC3 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE DIAMETER0.438 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.0 INCHES NOMINAL
THICKNESS0.375 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,FLAT


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