NSN 3120-00-397-4458

Part Details | THRUST WASHER BEARING

3120-00-397-4458 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: 31137201, 3120-00-397-4458, 00-397-4458, 3120003974458, 003974458

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31APR 12, 197400-397-445813211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 3120-00-397-4458
Part Number Cage Code Manufacturer
3113720113446PERKINS ENGINES INC
Technical Data | NSN 3120-00-397-4458
Characteristic Specifications
KEY LENGTH0.2200 INCHES NOMINAL
KEY WIDTH0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM
KEY QUANTITY1
OVERALL THICKNESS0.1210 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM
DIAMETER3.0450 INCHES MINIMUM AND 3.0550 INCHES MAXIMUM