5310-01-371-1638 WASHER,FLAT Index 5310-01-371-1640 WASHER,FLAT

National Stock Number:
5310-01-371-1639

Federal Supply Class:
5310

National Item Identification Number:
013711639

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:
506-6081706 ITEM 953711NAVAL SEA SYSTEMS COMMAND
6081706 ITEM 953711NAVAL SEA SYSTEMS COMMAND
803-5001003-X8X1-1353711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
OVERALL DIAMETER0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM


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