5310-01-058-3988 WASHER,FLAT Index 5310-01-058-3991 WASHER,FLAT

National Stock Number:
5310-01-058-3989

Federal Supply Class:
5310

National Item Identification Number:
010583989

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:
245180-00165092SOLARTRON ELECTRONICS INC WESTON INSTRUMENTS DIV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORBLACK OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING40.0 DUROMETER NOMINAL
HOLE DIAMETER0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
OVERALL DIAMETER0.150 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION275652-000,FSCM 65092 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM


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