3120-01-058-7169 BUSHING,SLEEVE Index 4820-01-058-7171 VALVE,CHECK

National Stock Number:
3120-01-058-7170

Federal Supply Class:
3120

National Item Identification Number:
010587170

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:
2640-765X1PIECE 596169ELECTRIC BOAT CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.9062 INCHES NOMINAL
LUBRICATION MATERIALLUBRICANT, MANUFACTURERS STANDARD
OUTSIDE DIAMETER1.2812 INCHES NOMINAL
OVERALL THICKNESS0.1875 INCHES NOMINAL
MATERIALPLASTIC OVERALL
STYLE DESIGNATORROUND
SURFACE FINISH125.0 MICROINCHES OVERALL


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