3110-00-723-2428 BEARING,BALL,ANNULAR Index 5930-00-723-2432 SWITCH,TOGGLE

National Stock Number:
5310-00-723-2430

Federal Supply Class:
5310

National Item Identification Number:
007232430

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:
178480410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER0.593 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
OVERALL DIAMETER1.000 INCHES MINIMUM AND 1.031 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION417,GRADE RS 510 4,TYPE R MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
MINIMUM TENSILE STRENGTH1000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.031 INCHES MINIMUM AND 0.093 INCHES MAXIMUM


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