5310-00-663-6855 WASHER,FLAT Index 3910-00-663-6860 CONVEYOR,DRAG

National Stock Number:
5310-00-663-6857

Federal Supply Class:
5310

National Item Identification Number:
006636857

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:
D2A19403990INGERSOLL-RAND CO
D2A19404577MISSION SYSTEMS ORCHARD PARK INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
OVERALL DIAMETER0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM


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