NSN 3940-00-283-7690

Part Details | TACKLE BLOCK

3940-00-283-7690 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: 418 4 12 INCH, 418 4 1/2 INCH, 418, 108065, 481, 752640529169, 752-6405291-69, 6405291, 2624747, 3940-00-283-7690, 00-283-7690, 3940002837690, 002837690

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39AUG 28, 197300-283-769006117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SAFETY LOCKING

PEAR SHAPED SWIVEL EYE

OVAL PATTERN

Cross Reference | NSN 3940-00-283-7690
Part Number Cage Code Manufacturer
418 4 1/2 INCH76257CROSBY GROUP INC THEMCKISSICK PLANT DIV
41876257CROSBY GROUP INC THEMCKISSICK PLANT DIV
10806575535CROSBY GROUP INCDBA NATIONAL SWAGE
48175535CROSBY GROUP INCDBA NATIONAL SWAGE
752-6405291-6953711NAVAL SEA SYSTEMS COMMAND
640529153711NAVAL SEA SYSTEMS COMMAND
262474780064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 3940-00-283-7690
Characteristic Specifications
STYLE DESIGNATOR9 OVAL PATTERN
SHELL LENGTH7.375 INCHES MINIMUM AND 7.625 INCHES MAXIMUM
SHEAVE OUTSIDE DIAMETER4.125 INCHES MINIMUM AND 4.375 INCHES MAXIMUM
BLOCK TYPE SNATCH
LOCKING STYLE SAFETY LOCKING
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 STYLE2 PEAR SHAPED SWIVEL EYE
MAXIMUM LOAD RATING26000.0 POUNDS