3940-00-189-3424 BLOCK,TACKLE Index 3940-00-189-3426 BLOCK,TACKLE

National Stock Number:
3940-00-189-3425

Federal Supply Class:
3940

National Item Identification Number:
001893425

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:
S1801-860431PC1T012-25T02780064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATOROVAL PATTERN
SHELL LENGTH5.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER3.438 INCHES NOMINAL
CENTER PIN DIAMETER0.438 INCHES NOMINAL
BLOCK TYPEREGULAR
MATERIAL AND LOCATIONSTEEL OVERALL
SURFACE TREATMENT AND LOCATIONZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY2
BEARING TYPEROLLER
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.625 INCHES
BECKET TYPETHIMBLE
BECKET QUANTITY1
MAXIMUM LOAD RATING3000.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSSIZE 5 IN.,RIG NO. 10
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCES1801-860431PC1T012-25T027


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