5305-01-464-7087 SCREW,MACHINE Index 5310-01-464-7089 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-464-7088

Federal Supply Class:
5310

National Item Identification Number:
014647088

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:
A3266447-380063US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR
SHH690-2081073GRAYHILL INC
SHH691-381073GRAYHILL INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.127 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
OVERALL DIAMETER0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM


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