3940-00-276-7500 BLOCK,TACKLE Index 3950-00-276-7502 HOIST,CHAIN

National Stock Number:
3940-00-276-7501

Federal Supply Class:
3940

National Item Identification Number:
002767501

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:
805-2453185PC1T03-5-7-9-11T013--80064NAVAL SHIP SYSTEMS COMMAND
805-2453185TYPEX80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLECLEWLINE EYE
BEARING TYPEPLAIN
BLOCK TYPEREGULAR
CENTER PIN DIAMETER1.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-16216, GRADE HY80 MIL SPEC SINGLE MATERIAL RESPONSE SHELL FOURTH LAYER
MATERIALSTEEL UNS K31820 SHELL FOURTH LAYER
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.625 INCHES
SHEAVE BEARING LUBRICATION METHODSELF-LUBRICATED
SHEAVE OUTSIDE DIAMETER12.000 INCHES NOMINAL
SHEAVE QUANTITY4
SHELL LENGTH16.250 INCHES NOMINAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSSEE FEAT
SPECIAL FEATURESDWG805-2453185PC1T03-5-7-9-11T013-16-17
STYLE DESIGNATOROVAL PATTERN
TACKLE ACCOMMODATED TYPEWIRE ROPE
TACKLE LOCKING DEVICENOT INCLUDED


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