5340-01-490-2425 RETAINER,NUT AND BOLT Index 5340-01-490-2427 RETAINER,NUT AND BOLT

National Stock Number:
5310-01-490-2426

Federal Supply Class:
5310

National Item Identification Number:
014902426

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:
124-4322632 PC 7753711NAVAL SEA SYSTEMS COMMAND
124-4365529 PC 6453711NAVAL SEA SYSTEMS COMMAND
436552953711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.000 INCHES MINIMUM AND 1.002 INCHES MAXIMUM
OVERALL DIAMETER1.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM


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