5310-01-240-1291 WASHER,FLAT Index 5310-01-240-1293 WASHER,FLAT

National Stock Number:
5310-01-240-1292

Federal Supply Class:
5310

National Item Identification Number:
012401292

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:
100168-28079318MEGGITT NORTH HOLLYWOOD INC
236MR001P0063B150RAYTHEON COMPANY
236MR001P00649956RAYTHEON COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.2450 INCHES MINIMUM AND 0.2475 INCHES MAXIMUM
SURFACE FINISH100.0 MICROINCHES ALL SURFACES
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM


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