5305-01-039-2209 SCREW,EXTERNALLY RELIEVED BODY Index 5305-01-039-2211 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5310-01-039-2210

Federal Supply Class:
5310

National Item Identification Number:
010392210

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:
2360-208903950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2360-208994080AIRCO WELDING PRODUCTS DIV OF BOC GROUP INC CUTTING MACHINE DEPT


Techincal Specification:
CENTER HOLE SHAPE STYLEDEE
CENTER HOLE WIDTH0.214 INCHES MINIMUM AND 0.218 INCHES MAXIMUM
HOLE DIAMETER0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
OVERALL DIAMETER0.375 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.440 INCHES NOMINAL


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