3110-01-204-6948 SEAT,BEARING Index 3120-01-204-6950 BEARING,SLEEVE

National Stock Number:
3120-01-204-6949

Federal Supply Class:
3120

National Item Identification Number:
012046949

Description:
BEARING,SLEEVE

Detail:
A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also BUSHING, SLEEVE; SPACER, SLEEVE; and WASHER (as modified). Excludes PIN, HOLLOW.


Manufacturer Information:
75643-67X4 PIECE 396169ELECTRIC BOAT CORPORATION
SSBN616-522-2005432 PIECE 380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
ANTIROTATION/LUBRICATION TYPE AND QUANTITY5 HOLE
BODY INSIDE DIAMETER4.0000 INCHES NOMINAL
BODY OUTSIDE DIAMETER5.5000 INCHES NOMINAL
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
CORNER SHAPECHAMFERED OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER5.8125 INCHES NOMINAL
FLANGE WIDTH0.2500 INCHES NOMINAL
HOLE DIAMETER0.7500 INCHES NOMINAL FOURTH
HOLE DIAMETER0.7500 INCHES NOMINAL FIFTH
HOLE DIAMETER0.1250 INCHES NOMINAL FIRST
HOLE DIAMETER0.2500 INCHES NOMINAL SECOND
HOLE DIAMETER0.2500 INCHES NOMINAL THIRD
OVERALL LENGTH8.6875 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-15939,COMP 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 630 OVERALL
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY


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