5325-00-562-0043 GROMMET,NONMETALLIC Index 2840-00-562-0052 LEVER,SIGNAL,NEGATI

National Stock Number:
5310-00-562-0044

Federal Supply Class:
5310

National Item Identification Number:
005620044

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:
735999519207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND W/FLATS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER2.276 INCHES MINIMUM AND 2.281 INCHES MAXIMUM
HOLE WIDTH ACROSS FLATS2.085 INCHES MINIMUM AND 2.090 INCHES MAXIMUM
OVERALL DIAMETER3.406 INCHES MINIMUM AND 3.469 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.0623 INCHES MINIMUM AND 0.0723 INCHES MAXIMUM


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