NSN 3940-00-297-2030

Part Details | TACKLE BLOCK

3940-00-297-2030 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: C23Z61606, SMC185618, 3940-00-297-2030, 00-297-2030, 3940002972030, 002972030

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196300-297-203006117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

CHAIN SHACKLE

BLOCK,TACKLE | 3940-00-297-2030, 002972030

OVAL PATTERN

BLOCK,TACKLE | 3940-00-297-2030, 002972030
Cross Reference | NSN 3940-00-297-2030
Part Number Cage Code Manufacturer
C23Z6160649956RAYTHEON COMPANYDBA RAYTHEON
SMC18561880063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 3940-00-297-2030
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHELL LENGTH4.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER2.250 INCHES NOMINAL
CENTER PIN DIAMETER0.312 INCHES NOMINAL
BLOCK TYPE REGULAR
SURFACE TREATMENT AND LOCATION VARNISH OVERALL
SHEAVE QUANTITY2
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 STYLE CHAIN SHACKLE
MAXIMUM LOAD RATING1400.0 POUNDS