5310-01-138-2102 WASHER,FLAT Index 5331-01-138-2106 O-RING

National Stock Number:
5310-01-138-2104

Federal Supply Class:
5310

National Item Identification Number:
011382104

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:
1230509219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
942884711862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
94288477X677GENERAL MOTORS LLC
CVC754-564S2680378TRIUMPH AEROSTRUCTURES, LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.406 INCHES MINIMUM AND 0.411 INCHES MAXIMUM
OVERALL DIAMETER1.000 INCHES NOMINAL
MATERIALSTEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THICKNESS0.060 INCHES NOMINAL


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