5310-00-845-0954 WASHER,FLAT Index 5310-00-845-0956 WASHER,RECESSED

National Stock Number:
5310-00-845-0955

Federal Supply Class:
5310

National Item Identification Number:
008450955

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:
1-180-004-0178U39OZARK AEROWORKS LLC
1-180-004-0199193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.191 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
OVERALL DIAMETER0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM


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