5310-01-254-8287 WASHER,FLAT Index 5310-01-254-8289 WASHER,FLAT

National Stock Number:
5310-01-254-8288

Federal Supply Class:
5310

National Item Identification Number:
012548288

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:
85100015/0003055070GOODRICH
8510003027541TRANSAERO, INC.
8510003055070GOODRICH
85100030K0131GOODRICH LIMITED
85100030K4358SAFRAN ELECTRICAL & POWER UK LTD
85100030U0J60ONTIC ENGINEERING & MANUFACTURING UK LIMITED


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.4375 INCHES MINIMUM AND 0.4425 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OVERALL OR STEEL COMP 304 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.619 INCHES MINIMUM AND 0.624 INCHES MAXIMUM
THICKNESS0.020 INCHES NOMINAL
CENTER HOLE SHAPE STYLEROUND


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