NSN 3940-00-988-4663

Part Details | TACKLE BLOCK

3940-00-988-4663 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: GGGB490, GGG-B-490, 3940-00-988-4663, 00-988-4663, 3940009884663, 009884663

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196200-988-466306117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

PEAR SHAPED SWIVEL EYE

OVAL PATTERN

Cross Reference | NSN 3940-00-988-4663
Part Number Cage Code Manufacturer
GGG-B-49081348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
Technical Data | NSN 3940-00-988-4663
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHELL LENGTH4.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER2.250 INCHES NOMINAL
CENTER PIN DIAMETER0.375 INCHES NOMINAL
BLOCK TYPE REGULAR
SHEAVE QUANTITY1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE FIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.500 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
BECKET TYPE THIMBLE
BECKET QUANTITY1
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE0 PEAR SHAPED SWIVEL EYE
MAXIMUM LOAD RATING1000.0 POUNDS
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY PACS AMCQ AND AMXF