3020-00-366-8037 GEAR,ANTIBACKLASH,SPUR Index 5945-00-366-8042 CONTACT ASSEMBLY,ELECTRICAL

National Stock Number:
5310-00-366-8040

Federal Supply Class:
5310

National Item Identification Number:
003668040

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:
A032646175PEERLESS-WINSMITH, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND W/FLATS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.506 INCHES NOMINAL
HOLE WIDTH ACROSS FLATS0.443 INCHES NOMINAL
OVERALL DIAMETER1.125 INCHES NOMINAL
MATERIALWOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.125 INCHES NOMINAL


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