3940-01-438-3989 BLOCK,TACKLE Index 2040-01-438-3991 DOG,DOOR,MARINE

National Stock Number:
3940-01-438-3990

Federal Supply Class:
3940

National Item Identification Number:
014383990

Description:
BLOCK,TACKLE

Detail:
A MECHANICAL DEVICE, CONSISTING OF A PULLEY(S) OR SHEAVE(S) ENCASED IN A SHELL OR FRAME WHICH MAY BE PROVIDED WITH A MEANS SUCH AS A HOOK, EYE, STRAP, SCREW, ETC., BY WHICH IT MAY BE ATTACHED TO AN OBJECT. IT IS USED TO CHANGE DIRECTION OF A RUNNING ROPE AND/OR TO GAIN A MECHANICAL ADVANTAGE.


Manufacturer Information:
J15524RTB99557GUNNEBO JOHNSON CORPORATION
J15S24RTBD9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
STYLE DESIGNATOROVAL PATTERN
SHEAVE OUTSIDE DIAMETER24.000 INCHES NOMINAL
BLOCK TYPEREGULAR
SHEAVE QUANTITY1
BEARING TYPEROLLER
TACKLE ACCOMMODATED TYPEWIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.750 INCHES
MAXIMUM LOAD RATING30000.0 POUNDS
SPECIAL FEATURESSTEEL SHEAVE; STEEL THRUST BEARINGS;HOOK: SINGLE BARBED, FORGED ALLOY STEEL W/ ROLLER BEARINGS AND "J" HOOK LATCH, W/ 3 SHACKLES


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