3110-01-343-1796 BEARING,ROLLER,TAPERED Index 3120-01-343-1798 BUSHING,SLEEVE

National Stock Number:
3120-01-343-1797

Federal Supply Class:
3120

National Item Identification Number:
013431797

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:
125918210AJV0SCHAEFFLER GROUP USA INC
1259182119200US ARMY ARDEC RDECOM
125918215XMS1JTEKT BEARINGS NORTH AMERICA LLC
1259182160380TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT
TWA-20315XMS1JTEKT BEARINGS NORTH AMERICA LLC


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