3940-00-189-3550 BLOCK,TACKLE Index 3940-00-189-3554 BLOCK,TACKLE

National Stock Number:
3940-00-189-3551

Federal Supply Class:
3940

National Item Identification Number:
001893551

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:
S1801-860448PC1-8-11-14-16-27-2-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BEARING TYPEPLAIN
BLOCK TYPEREGULAR
CENTER PIN DIAMETER1.125 INCHES NOMINAL
LOAD RATING7100.0 POUNDS MAXIMUM
MATERIALSTEEL OVERALL
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.625 INCHES
SHEAVE BEARING LUBRICATION METHODSELF-LUBRICATED
SHEAVE QUANTITY1
SHEAVE OUTSIDE DIAMETER9.000 INCHES NOMINAL
SHELL LENGTH14.000 INCHES NOMINAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSELP NO.,SIZE 14 IN.,RIN NO. 4
STYLE DESIGNATOROVAL PATTERN
SURFACE TREATMENTZINC OVERALL
TACKLE ACCOMMODATED TYPEFIBROUS ROPE


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