3120-01-299-1346 BUSHING,SLEEVE Index 5930-01-299-1348 SWITCH,ROTARY

National Stock Number:
3120-01-299-1347

Federal Supply Class:
3120

National Item Identification Number:
012991347

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:
006-07572-0000EXU3AQUA-CHEM, INC.
H-59687-A PIECE 3-614883CRAFTS PRECISION INDUSTREIS INC
H59687A3-614883CRAFTS PRECISION INDUSTREIS INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER4.7800 INCHES MINIMUM AND 4.7900 INCHES MAXIMUM
OUTSIDE DIAMETER6.9996 INCHES MINIMUM AND 7.0000 INCHES MAXIMUM
OVERALL THICKNESS0.6600 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-750 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 510 OR COPPER ALLOY 524 OR COPPER ALLOY 544 OVERALL
STYLE DESIGNATORROUND
SURFACE FINISH63.0 MICROINCHES OVERALL


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