5310-01-202-1777 WASHER,FLAT Index 5310-01-202-1779 WASHER,FLAT

National Stock Number:
5310-01-202-1778

Federal Supply Class:
5310

National Item Identification Number:
012021778

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:
1376-16-25644114BAE SYSTEMS LAND & ARMAMENTS L.P.
5310PL09197109009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
551929753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
HOLE DIAMETER26.0 MILLIMETERS NOMINAL
OVERALL DIAMETER38.0 MILLIMETERS NOMINAL
THICKNESS4.0 MILLIMETERS NOMINAL


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