5310-01-578-7751 WASHER,LOCK BLANK Index 5310-01-578-7888 COVER NUT ASSEMBLY

National Stock Number:
5310-01-578-7873

Federal Supply Class:
5310

National Item Identification Number:
015787873

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:
1259026819207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
LS104642301417GENERAL DYNAMICS LAND SYSTEMS INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORGREEN OVERALL
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
HOLE DIAMETER0.859 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-12560 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER1.969 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPAINT OVERALL
THICKNESS0.250 INCHES NOMINAL


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