4320-01-457-0267 THREAD PROTECTOR Index 3010-01-457-0269 NOZZLE,OIL,GEAR

National Stock Number:
5310-01-457-0268

Federal Supply Class:
5310

National Item Identification Number:
014570268

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:
110-4367538 PC 2053711NAVAL SEA SYSTEMS COMMAND
124-4322625 PC 1853711NAVAL SEA SYSTEMS COMMAND
124-5794558 PC 1853711NAVAL SEA SYSTEMS COMMAND
167-6926166 PC27553711NAVAL SEA SYSTEMS COMMAND
432262553711NAVAL SEA SYSTEMS COMMAND
436753853711NAVAL SEA SYSTEMS COMMAND
579455853711NAVAL SEA SYSTEMS COMMAND
803-5959183 PC9653711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.906 INCHES NOMINAL
OVERALL DIAMETER1.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.125 INCHES NOMINAL


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