2910-00-371-4756 SEAT,VALVE SPRING Index 2910-00-371-4762 SPACER

National Stock Number:
5310-00-371-4761

Federal Supply Class:
5310

National Item Identification Number:
003714761

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:
SR78701843AMBAC INTERNATIONAL CORPORATION
SR78757533STEEGO CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.237 INCHES MINIMUM AND 0.241 INCHES MAXIMUM
OVERALL DIAMETER0.571 INCHES MINIMUM AND 0.575 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633,CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1213 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM


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