3940-00-227-5577 BLOCK,TACKLE Index 3940-00-227-5581 BLOCK,TACKLE

National Stock Number:
3940-00-227-5579

Federal Supply Class:
3940

National Item Identification Number:
002275579

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:
S1801-860408PC1T03-5T07-9T011-1-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLECHAIN SHACKLE
BEARING TYPEPLAIN
BECKET QUANTITY1
BECKET TYPETHIMBLE
BLOCK TYPEREGULAR
CENTER PIN DIAMETER1.125 INCHES NOMINAL
COATING METHODELECTROLYTIC SHEAVE
LOAD RATING15400.0 POUNDS MAXIMUM
MATERIALCOPPER ALLOY BEARING
MATERIALSTEEL CENTER PIN
MATERIALSTEEL SHEAVE
MATERIALWOOD SHELL
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.625 INCHES
SHEAVE BEARING LUBRICATION METHODSELF-LUBRICATED
SHEAVE OUTSIDE DIAMETER9.000 INCHES NOMINAL
SHEAVE QUANTITY2
SHELL LENGTH14.000 INCHES NOMINAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER
SPECIAL FEATURESGRAY COLOR SHELL
STYLE DESIGNATOROVAL PATTERN
SURFACE TREATMENTZINC SHEAVE
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
TACKLE LOCKING DEVICENOT INCLUDED


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