5310-00-143-5742 WASHER,RECESSED Index 5310-00-143-5744 WASHER,FLAT

National Stock Number:
5310-00-143-5743

Federal Supply Class:
5310

National Item Identification Number:
001435743

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:
WA8675401843AMBAC INTERNATIONAL CORPORATION
WA8675404998ADAMS AIRCRAFT INTERNATIONAL INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER8.0 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.039 INCHES MINIMUM AND 0.059 INCHES MAXIMUM


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