NSN 3120-00-318-4805

Part Details | THRUST WASHER BEARING

3120-00-318-4805 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: 177A629, 177A629, A3215801, 3120-00-318-4805, 00-318-4805, 3120003184805, 003184805

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JAN 01, 196300-318-480513211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 3120-00-318-4805
Part Number Cage Code Manufacturer
177A62924446GENERAL ELECTRIC COMPANY
177A62971669GENERAL ELECTRIC COSWITCHGEAR AND CONTROL DIVISION
A321580180064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 3120-00-318-4805
Characteristic Specifications
STYLE DESIGNATOR ROUND
OUTSIDE DIAMETER6.2400 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.2500 INCHES NOMINAL
CENTER HOLE SHAPE STYLE ROUND
DIAMETER5.4680 INCHES NOMINAL
LUBRICATION MATERIAL LUBRICANT, MANUFACTURERS STANDARD
SPECIAL FEATURESBEARING CUT IN HALF WITH 63 MICROINCH RMS FINISH ON FACES OF CUT