3120-01-033-1221 BUSHING,SLEEVE Index 5930-01-033-1224 SWITCH,PRESSURE

National Stock Number:
3120-01-033-1222

Federal Supply Class:
3120

National Item Identification Number:
010331222

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:
B30350316603CONTROL FLOW, INC.
B3035033X894CONTROL FLOW, INC.
PLD301087PC12216603CONTROL FLOW, INC.
PLD301087PC1223X894CONTROL FLOW, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER3.8750 INCHES NOMINAL
LUBRICATION MATERIALLUBRICATING OIL
OUTSIDE DIAMETER7.9900 INCHES MINIMUM AND 7.9950 INCHES MAXIMUM
OVERALL THICKNESS0.3125 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORROUND


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