3940-00-227-5555 BLOCK,TACKLE Index 5905-00-227-5557 RESISTOR,FIXED,FILM

National Stock Number:
3940-00-227-5556

Federal Supply Class:
3940

National Item Identification Number:
002275556

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:
S1801-860389PC1-3T07-9T016-2380064NAVAL 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 CENTER PIN
STEEL SHEAVE
WOOD SHELL
SURFACE TREATMENT AND LOCATIONPAINTED SHELL
ZINC, ELECTROLYTIC SHEAVE
SHEAVE QUANTITY1
BEARING TYPEROLLER
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.625 INCHES
MAXIMUM LOAD RATING1400.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSSIZE 5 IN.,RIG NO. 18
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCES1801-860389PC1-3T07-9T016-23


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