4820-00-630-9929 VALVE,PRESSURE EQUALIZING,GASEOU Index 3940-00-630-9932 BLOCK,TACKLE

National Stock Number:
3940-00-630-9931

Federal Supply Class:
3940

National Item Identification Number:
006309931

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:
D8337019PT833702019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
MILB11837TYPE2STYLEA81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
STYLE DESIGNATORHALF-OVAL PATTERN
SHEAVE OUTSIDE DIAMETER8.000 INCHES NOMINAL
CENTER PIN DIAMETER1.500 INCHES NOMINAL
BLOCK TYPESNATCH
LOCKING STYLEDROP LINK
MATERIAL AND LOCATIONSTEEL CENTER PIN
STEEL SHEAVE
STEEL SHELL
PHOSPHOR BRONZE BEARING
SURFACE TREATMENT AND LOCATIONZINC, HOT DIP OVERALL
SHEAVE QUANTITY1
BEARING TYPEPLAIN
TACKLE ACCOMMODATED TYPEWIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.625 INCHES
TACKLE LOCKING DEVICENOT INCLUDED
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEFLATTED STIFF SWIVEL HOOK
MAXIMUM LOAD RATING20000.0 POUNDS
NONDEFINITIVE SPEC/STD DATA2 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMILB11837TYPE2STYLEA


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