5310-01-207-4740 WASHER,FLAT Index 5330-01-207-4742 PACKING,PREFORMED

National Stock Number:
5310-01-207-4741

Federal Supply Class:
5310

National Item Identification Number:
012074741

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:
1276-07-16744114BAE SYSTEMS LAND & ARMAMENTS L.P.
1276-07-16753711NAVAL SEA SYSTEMS COMMAND
5310PL08218099009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
552123653711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER14.5 MILLIMETERS NOMINAL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER28.0 MILLIMETERS NOMINAL
THICKNESS2.5 MILLIMETERS NOMINAL


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