4720-00-741-9603 HOSE,AIR DUCT Index 1005-00-741-9680 CONTACT ASSY,FIRING

National Stock Number:
3120-00-741-9671

Federal Supply Class:
3120

National Item Identification Number:
007419671

Description:
BEARING,WASHER,THRUST

Detail:
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.


Manufacturer Information:
BRG4660532TRANE U.S. INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
DIAMETER3.0000 INCHES NOMINAL
OUTSIDE DIAMETER4.0000 INCHES NOMINAL
OVERALL THICKNESS0.1875 INCHES NOMINAL
SPECIAL FEATURESLUBRICATION GROOVES LOCATED ON BRONZE SIDE OF WASHER
STYLE DESIGNATORROUND


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