5310-01-240-0863 WASHER,FLAT Index 5310-01-240-0865 WASHER,LOCK

National Stock Number:
5310-01-240-0864

Federal Supply Class:
5310

National Item Identification Number:
012400864

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:
133B6663P105606GENERAL DYNAMICS-OTS, INC.
5310PL07871239009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
OVERALL DIAMETER0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TY M,CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR DOD-P-16232,TY Z,CL 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
THICKNESS0.063 INCHES NOMINAL


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