1670-00-571-1020 BRIDLE,PARACHUTE Index 2925-00-571-1039 SPRING,HELICAL,COMPRESSION

National Stock Number:
5310-00-571-1025

Federal Supply Class:
5310

National Item Identification Number:
005711025

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:
12877588818KEARFOTT CORPORATION
128775-188818KEARFOTT CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.089 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
OVERALL DIAMETER0.218 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
PERIPHERAL SHAPE STYLEDEE
WIDTH0.194 INCHES NOMINAL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.018 INCHES NOMINAL


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