NSN 3120-00-741-0438

Part Details | THRUST WASHER BEARING

3120-00-741-0438 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: 6765784, 7707989, 3120-00-741-0438, 00-741-0438, 3120007410438, 007410438

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31DEC 07, 197000-741-043813211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND W/KEYWAYS

Cross Reference | NSN 3120-00-741-0438
Part Number Cage Code Manufacturer
676578473342ALLISON TRANSMISSION, INC.
770798919207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 3120-00-741-0438
Characteristic Specifications
STYLE DESIGNATOR ROUND W/KEYWAYS
OUTSIDE DIAMETER5.3750 INCHES NOMINAL
KEYWAY RADIUS0.1870 INCHES NOMINAL
WASHER KEYWAY DEPTH0.0200 INCHES NOMINAL
KEYWAY QUANTITY12
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.0610 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
DIAMETER5.3600 INCHES MINIMUM AND 5.3710 INCHES MAXIMUM
END ITEM IDENTIFICATION2350-00-796-8000 GUN SP