3940-00-246-8840 BLOCK,TACKLE Index 3940-00-246-8843 BLOCK,TACKLE

National Stock Number:
3940-00-246-8841

Federal Supply Class:
3940

National Item Identification Number:
002468841

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:
GG-B-50081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
GGGB50081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
STYLE DESIGNATORDIAMOND PATTERN
SHEAVE OUTSIDE DIAMETER12.000 INCHES NOMINAL
BLOCK TYPEREGULAR
MATERIAL AND LOCATIONBRONZE BEARING
STEEL CENTER PIN
STEEL SHEAVE
STEEL SHELL
SURFACE TREATMENT AND LOCATIONZINC, HOT DIP OVERALL
SHEAVE QUANTITY2
BEARING TYPEPLAIN
SHEAVE BEARING LUBRICATION METHODSELF-LUBRICATED
TACKLE ACCOMMODATED TYPEWIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.875 INCHES
TACKLE LOCKING DEVICENOT INCLUDED
BECKET TYPETHIMBLE
BECKET QUANTITY1
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEDRILLED SWIVEL EYE AND SHACKLE
MAXIMUM LOAD RATING10000.0 POUNDS
NONDEFINITIVE SPEC/STD DATA2 TYPE AND
B GRADE AND
2 STYLE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEGG-B-500


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