3940-00-264-4770 BLOCK,TACKLE Index 3940-00-264-4772 BLOCK,TACKLE

National Stock Number:
3940-00-264-4771

Federal Supply Class:
3940

National Item Identification Number:
002644771

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:
S1801-770377PC1T012-14-16T02280064NAVAL SHIP SYSTEMS COMMAND
S1801-770377PC1TO12-14-16TO22-2-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORROUND PATTERN
SHEAVE OUTSIDE DIAMETER18.000 INCHES NOMINAL
CENTER PIN DIAMETER1.500 INCHES NOMINAL
BLOCK TYPESNATCH
LOCKING STYLESAFETY LOCKING
MATERIAL AND LOCATIONSTEEL CENTER PIN AND
STEEL SHELL AND
STEEL SHEAVE AND
BRONZE BEARING
SURFACE TREATMENT AND LOCATIONZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY1
BEARING TYPEPLAIN
SHEAVE BEARING LUBRICATION METHODPRESSURE GREASE FITTING
TACKLE ACCOMMODATED TYPEWIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.750 INCHES
TACKLE LOCKING DEVICENOT INCLUDED
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEOBLONG SWIVEL EYE
MAXIMUM LOAD RATING15000.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MAXIMUM TACKLE DIAMETER ACCOMMODATED, ATTACHMENT STYLE, AND EXTRA LONG REFERENCE NUMBER
EXTRA LONG REFERENCE NUMBERS1801-770377PC1TO12-14-16TO22-25TO29, 18 IN SHEAVE O.D., 1.5 IN CENTER PIN DIA
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCES1801-770377PC1TO12-14-16TO22-2-


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