NSN 3940-01-442-9789

Part Details | TACKLE BLOCK

3940-01-442-9789 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.

Alternate Parts: 7D505660 REV B ITEM 9, 7D5-05660 REV B ITEM 9, 7D305679, 7D3-05679, 3940-01-442-9789, 01-442-9789, 3940014429789, 014429789

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39MAR 28, 199701-442-978906117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SWIVEL JAW AND GUY EYES

OVAL PATTERN

Cross Reference | NSN 3940-01-442-9789
Part Number Cage Code Manufacturer
7D5-05660 REV B ITEM 934712OLDENBURG GROUP INCORPORATEDDBA OLDENBURG - LAKE SHORE
7D3-0567934712OLDENBURG GROUP INCORPORATEDDBA OLDENBURG - LAKE SHORE
Technical Data | NSN 3940-01-442-9789
Characteristic Specifications
STYLE DESIGNATOR2 OVAL PATTERN
SHELL LENGTH20.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER14.000 INCHES NOMINAL
CENTER PIN DIAMETER0.500 INCHES NOMINAL
BLOCK TYPE REGULAR
MATERIAL AND LOCATION STEEL OVERALL
SHEAVE QUANTITY1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD PRESSURE GREASE FITTING
TACKLE ACCOMMODATED TYPE WIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.500 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE SWIVEL JAW AND GUY EYES
SPECIAL FEATURES40.72 IN. FROM CENTER POINT OF SHEAVE TO LOAD BEARING SURFACE OF HOOK; STEEL CONSTRUCTION WITH PLASTIC SHIMSAGAVGAOE10 DAVIT
END ITEM IDENTIFICATIONMANUFACTURER NAME, HOOK BLOCK ASSEMBLY