3940-01-373-2733 BLOCK,TACKLE Index 3940-01-373-2735 BLOCK,TACKLE

National Stock Number:
3940-01-373-2734

Federal Supply Class:
3940

National Item Identification Number:
013732734

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:
MIL-B-2422081349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MILB24220TYIIIC L1SZ12RIG25D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEOBLONG SWIVEL EYE AND SHACKLE
BLOCK TYPEREGULAR
CENTER PIN DIAMETER1.000 INCHES MINIMUM
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.938 INCHES
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 1 CLASS AND 12 SIZE
SHEAVE OUTSIDE DIAMETER8.000 INCHES MINIMUM
SHEAVE QUANTITY2
SHELL LENGTH12.000 INCHES MINIMUM
SPECIAL FEATURESRIG NO. 1
STYLE DESIGNATORHALF-OVAL PATTERN
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
TACKLE LOCKING DEVICEINCLUDED


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