3120-01-209-8170 BEARING,PLAIN,SELF-ALIGNING Index 3120-01-209-8172 BEARING,WASHER,THRUST

National Stock Number:
3120-01-209-8171

Federal Supply Class:
3120

National Item Identification Number:
012098171

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:
10108239A486GNIMIKKEISTOKESKUS NCB FINLAND
500711299167HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
DIAMETER0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPECHAMFERED SECOND OUTSIDE CORNER
CORNER SHAPESQUARE FIRST INSIDE CORNER
CORNER SHAPESQUARE FIRST OUTSIDE CORNER
CORNER SHAPESQUARE FOURTH INSIDE CORNER
CORNER SHAPESQUARE SECOND INSIDE CORNER
CORNER SHAPESQUARE THIRD INSIDE CORNER
COUNTERBORE DEPTH0.0180 INCHES MINIMUM AND 0.0220 INCHES MAXIMUM
COUNTERBORE DIAMETER1.7150 INCHES MINIMUM AND 1.7250 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLECOUNTERBORED
LUBRICATION FEATUREPERFORATION VERTICAL COUNTERBORE SURFACE
MATERIALSTEEL OVERALL
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER2.2000 INCHES MINIMUM AND 2.2100 INCHES MAXIMUM
OVERALL THICKNESS0.2010 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM
SPECIAL FEATURESTHREE LUBRICATION HOLES 0.188 IN. DIA NOM COUNTERSUNK 0.375 IN. DIA NOM BY 82.0 PORM 1.0 DEG; ALTERNATE SURFACE FINISH ON LEFT SIDE 16.0 MICROIN
STYLE DESIGNATORROUND
SURFACE FINISH32.0 MICROINCHES LEFT SIDE


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