4140-01-318-4787 FAN,CENTRIFUGAL Index 2840-01-318-4789 CASE,COMBUSTION CHAMBER,AIRCRAFT

National Stock Number:
3130-01-318-4788

Federal Supply Class:
3130

National Item Identification Number:
013184788

Description:
HOUSING,BEARING UNIT

Detail:
A SINGLE OR MULTIPLE PIECE ITEM WITHOUT BALL, PLAIN OR ROLLER BEARING(S). IT IS DESIGNED TO MEET VARIOUS OR SPECIFIC CONDITIONS OF MOUNTING. FOR ITEMS WITH BEARINGS, SEE BEARING UNIT, BALL; BEARING UNIT, PLAIN; AND BEARING UNIT, ROLLER.


Manufacturer Information:
13E73000-01743999THE BOEING COMPANY


Techincal Specification:
ASSEMBLY OVERALL LENGTH1.000 INCHES NOMINAL
BORE DIAMETER0.5040 INCHES MINIMUM AND 0.5060 INCHES MAXIMUM
COUNTERSINK DIAMETER0.250 INCHES NOMINAL
COUNTERSINK ANGLE90.0 DEGREES NOMINAL
HOUSING WIDTH2.200 INCHES NOMINAL
HOUSING LENGTH0.740 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
MOUNTING HOLE TYPEROUND, THREADED, COUNTERSUNK
NOMINAL THREAD SIZE0.250 INCHES
SPECIAL FEATURESINSIDE DIA COUNTERBORED BOTH ENDS,0.984 IN. DIA
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)


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