3940-00-189-3491 BLOCK,TACKLE Index 3940-00-189-3496 BLOCK,TACKLE

National Stock Number:
3940-00-189-3495

Federal Supply Class:
3940

National Item Identification Number:
001893495

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:
S1801-860433PC180064NAVAL SHIP SYSTEMS COMMAND
S1801-860433PC1-5-9T014-16-1980064NAVAL SHIP SYSTEMS COMMAND
S1801-860433PC1-5-9T014-16-19-380064NAVAL SHIP SYSTEMS COMMAND
S1801-860433PC1-5-9T014-16-19-3-80064NAVAL SHIP SYSTEMS COMMAND
S1801-860433PC1-5-9TO14-16-1980064NAVAL SHIP SYSTEMS COMMAND
S1801-860433PC1-5-9TO14-16-19-380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BEARING TYPEROLLER
BECKET TYPETHIMBLE
BECKET QUANTITY1
BLOCK TYPEREGULAR
CENTER PIN DIAMETER0.500 INCHES NOMINAL
LOAD RATING2450.0 POUNDS MAXIMUM
MATERIALSTEEL OVERALL
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.750 INCHES
SHEAVE OUTSIDE DIAMETER3.938 INCHES NOMINAL
SHEAVE QUANTITY1
SHELL LENGTH6.000 INCHES NOMINAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSELR NO. SIZE 6 IN.,RIG NO. 10
STYLE DESIGNATOROVAL PATTERN
SURFACE TREATMENTZINC OVERALL
TACKLE ACCOMMODATED TYPEFIBROUS ROPE


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