5310-00-997-3086 WASHER,FLAT Index 5365-00-997-3089 SPACER,RING

National Stock Number:
5310-00-997-3087

Federal Supply Class:
5310

National Item Identification Number:
009973087

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:
S1450-14-19-03271379CESSNA AIRCRAFT COMPANY
S1450-14-19-0327EK50TEXTRON AVIATION INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
OVERALL DIAMETER1.158 INCHES MINIMUM AND 1.218 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7952 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.032 INCHES NOMINAL


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