5310-00-754-1720 WASHER,FLAT Index 3120-00-754-1722 BEARING,WASHER,THRUST

National Stock Number:
5310-00-754-1721

Federal Supply Class:
5310

National Item Identification Number:
007541721

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:
1001263619207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
110890-999193HONEYWELL INTERNATIONAL INC.
99867-959364HONEYWELL INTERNATIONAL INC.
99867-970210HONEYWELL INTERNATIONAL INC.
99867-972599ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
99867-999193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.385 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
OVERALL DIAMETER0.560 INCHES MINIMUM AND 0.590 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.0272 INCHES MINIMUM AND 0.0277 INCHES MAXIMUM


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