5310-01-178-3980 WASHER,FLAT Index 5910-01-178-3985 RETAINER,CAPACITOR

National Stock Number:
5310-01-178-3981

Federal Supply Class:
5310

National Item Identification Number:
011783981

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:
16610336-00128009SYPRIS ELECTRONICS, LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
HOLE DIAMETER0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM
OVERALL DIAMETER0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765,CLASS 2A,GRADE 70 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESMATL RUBBER SILICONE CLASS SI ANDSNUBBER GROOVE 0.031 IN. RADIUS
THICKNESS0.203 INCHES MINIMUM AND 0.219 INCHES MAXIMUM


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