NSN 3120-00-555-4537

Part Details | THRUST WASHER BEARING

3120-00-555-4537 An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.

Alternate Parts: 6F8281, 3120-00-555-4537, 00-555-4537, 3120005554537, 005554537

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JAN 01, 196300-555-453713211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND W/KEYWAYS

Cross Reference | NSN 3120-00-555-4537
Part Number Cage Code Manufacturer
6F828111083CATERPILLAR INC.DBA CATERPILLAR
Technical Data | NSN 3120-00-555-4537
Characteristic Specifications
STYLE DESIGNATOR ROUND W/KEYWAYS
OUTSIDE DIAMETER4.3750 INCHES NOMINAL
KEYWAY RADIUS0.1406 INCHES NOMINAL
WASHER KEYWAY DEPTH0.2660 INCHES NOMINAL
KEYWAY QUANTITY2
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.1570 INCHES MINIMUM AND 0.1720 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
DIAMETER2.5310 INCHES NOMINAL
FEATURES PROVIDED CASEHARDENED