NSN 3120-00-074-3551

Part Details | THRUST WASHER BEARING

3120-00-074-3551 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: 5M2807, 3120-00-074-3551, 00-074-3551, 3120000743551, 000743551

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JAN 01, 196300-074-355113211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

Cross Reference | NSN 3120-00-074-3551
Part Number Cage Code Manufacturer
5M280711083CATERPILLAR INC.DBA CATERPILLAR
Technical Data | NSN 3120-00-074-3551
Characteristic Specifications
WIDTH2.7500 INCHES NOMINAL
OVERALL LENGTH4.1600 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.3620 INCHES NOMINAL
DIAMETER1.5200 INCHES NOMINAL
CENTER HOLE WIDTH ACROSS FLATS1.5200 INCHES NOMINAL
SPECIAL FEATURESW/4 GROOVES,BEARING SURFACE HOLES ARE 3.360 IN. BY 1.600 IN. BY 1.600 IN. BY 2.140 IN. CENTER TO CENTER