3940-00-189-9619 BLOCK,TACKLE Index 3940-00-189-9621 BLOCK,TACKLE

National Stock Number:
3940-00-189-9620

Federal Supply Class:
3940

National Item Identification Number:
001899620

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:
S1801-860402PC1T03-5T07-9T011-1-80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATOROVAL PATTERN
SHELL LENGTH10.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER6.500 INCHES NOMINAL
CENTER PIN DIAMETER0.750 INCHES NOMINAL
BLOCK TYPEREGULAR
MATERIAL AND LOCATIONBRONZE BEARING
STEEL CENTER PIN
STEEL SHEAVE
WOOD SHELL
SURFACE TREATMENT AND LOCATIONGALVANIZED SHEAVE AND
PAINTED SHELL
SHEAVE QUANTITY2
BEARING TYPEPLAIN
SHEAVE BEARING LUBRICATION METHODSELF-LUBRICATED
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.125 INCHES
TACKLE LOCKING DEVICENOT INCLUDED
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEFRONT EYE ROUND LOOSE HOOK
MAXIMUM LOAD RATING6900.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE SHELL LENGTH REQUIREMENT
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCES1801-860402PC1T03-5T07-9T011-1-


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