NSN 3120-01-009-2977

Part Details | THRUST WASHER BEARING

3120-01-009-2977 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: 2541556, 3120-01-009-2977, 01-009-2977, 3120010092977, 010092977

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31SEP 07, 197501-009-297713211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

ROUND

ROUND

Cross Reference | NSN 3120-01-009-2977
Part Number Cage Code Manufacturer
254155610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 3120-01-009-2977
Characteristic Specifications
STYLE DESIGNATOR ROUND
OUTSIDE DIAMETER0.8750 INCHES NOMINAL
COUNTERBORE DIAMETER7.5020 INCHES MINIMUM AND 7.5080 INCHES MAXIMUM
COUNTERBORE DEPTH0.1500 INCHES NOMINAL
OVERALL THICKNESS0.4750 INCHES NOMINAL
CENTER HOLE SHAPE STYLE ROUND
DIAMETER6.7300 INCHES NOMINAL
SPECIAL FEATURESENAMEL,MIL-E-15090,TY 3,CL 1 EXTERNAL SURFACE; W/6 INSERT SCREW THD MS124694