5310-01-165-5598 WASHER,FLAT Index 5310-01-165-5601 WASHER,SLOTTED

National Stock Number:
5310-01-165-5600

Federal Supply Class:
5310

National Item Identification Number:
011655600

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:
708-4684958 ITEM 680064NAVAL SHIP SYSTEMS COMMAND
87841-0205 ITEM 696169ELECTRIC BOAT CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER1.060 INCHES NOMINAL
OVERALL DIAMETER4.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEDEE
WIDTH4.190 INCHES NOMINAL
THICKNESS0.188 INCHES NOMINAL


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