NSN 3940-00-641-4153

Part Details | TACKLE BLOCK

3940-00-641-4153 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: 5171, MILB11837, MIL-B-11837, 3940-00-641-4153, 00-641-4153, 3940006414153, 006414153

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196100-641-415306117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SAFETY W/LATCH PIN

OBLONG SWIVEL EYE AND SHACKLE

OVAL PATTERN

Cross Reference | NSN 3940-00-641-4153
Part Number Cage Code Manufacturer
517176320MCMILLANS W H SONS
MIL-B-1183781349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
Technical Data | NSN 3940-00-641-4153
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHEAVE OUTSIDE DIAMETER10.000 INCHES NOMINAL
CENTER PIN DIAMETER1.500 INCHES NOMINAL
BLOCK TYPE SNATCH
LOCKING STYLE SAFETY W/LATCH PIN
SURFACE TREATMENT AND LOCATION ZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE WIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.875 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE OBLONG SWIVEL EYE AND SHACKLE
MAXIMUM LOAD RATING30000.0 POUNDS
NONDEFINITIVE SPEC/STD DATA1 TYPE