5310-01-071-8168 WASHER,FLAT Index 5310-01-071-8171 WASHER,RECESSED

National Stock Number:
5310-01-071-8169

Federal Supply Class:
5310

National Item Identification Number:
010718169

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:
S8164-26270210HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.438 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
OVERALL DIAMETER0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
MATERIALSTEEL COMP 630 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH100.0 MICROINCHES OUTER
SURFACE FINISH100.0 MICROINCHES INNER
THICKNESS0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM


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