5310-01-199-8721 NUT,PLAIN,ROUND Index 5310-01-199-8723 WASHER,FINISHING

National Stock Number:
5310-01-199-8722

Federal Supply Class:
5310

National Item Identification Number:
011998722

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:
1232165719200US ARMY ARDEC RDECOM


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.562 INCHES NOMINAL
OVERALL DIAMETER1.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1030 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TYPE M OR Z,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
THICKNESS0.200 INCHES NOMINAL


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