NSN 3120-00-492-3074

Part Details | THRUST WASHER BEARING

3120-00-492-3074 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: 673921455, 673921-455, 6739210455, 673921-0455, 3120-00-492-3074, 00-492-3074, 3120004923074, 004923074

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JUN 27, 197400-492-307413211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 3120-00-492-3074
Part Number Cage Code Manufacturer
673921-45506481NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NAVIGATION AND MARITIME SYSTEMS
673921-045506481NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NAVIGATION AND MARITIME SYSTEMS
Technical Data | NSN 3120-00-492-3074
Characteristic Specifications
STYLE DESIGNATOR ROUND
OUTSIDE DIAMETER0.3750 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.0454 INCHES MINIMUM AND 0.0456 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
DIAMETER0.1880 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM
SPECIAL FEATURESFACE IS PARELLEL WITH -IN 0.0001 INCH