7644-01-490-6812 DIGITAL GEOSPATIAL PRODUCTS Index 7644-01-490-6814 DIGITAL GEOSPATIAL PRODUCTS

National Stock Number:
5310-01-490-6813

Federal Supply Class:
5310

National Item Identification Number:
014906813

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:
17-2-063081337W1D1 NATICK SOLDIER CENTER
17-2-0630-181337W1D1 NATICK SOLDIER CENTER


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.261 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
OVERALL DIAMETER1.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A240,TYPE 304-2B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.075 INCHES NOMINAL


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