5365-00-246-2925 SPACER,RING Index 5310-00-246-2927 WASHER,FLAT

National Stock Number:
5310-00-246-2926

Federal Supply Class:
5310

National Item Identification Number:
002462926

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:
78368PC3681316PORTSMOUTH NAVAL SHIPYARD
80116PC3481316PORTSMOUTH NAVAL SHIPYARD
9400-934989PC3480064NAVAL SHIP SYSTEMS COMMAND
ASR13-9400-343891PC3680064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIALRUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER2.688 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER3.750 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.031 INCHES NOMINAL
HARDNESS RATING50.0 SHORE DUROMETER A MAXIMUM
MINIMUM TENSILE STRENGTH1125 POUNDS PER SQUARE INCH


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