2530-00-045-9205 RETAINER,DUST COVER Index 5950-00-045-9229 COIL,RADIO FREQUENCY

National Stock Number:
5310-00-045-9225

Federal Supply Class:
5310

National Item Identification Number:
000459225

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:
A20531-142498DAR ELECTRONICS INC DBA NATIONAL RADIO CO
A20531-171313VIKING TECHNOLOGIES, LTD.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING82.0 ROCKWELL B MINIMUM AND 94.0 ROCKWELL B MAXIMUM
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
OVERALL DIAMETER0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTOXIDE FILM OVERALL
THICKNESS0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM


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