NSN 3940-00-879-2137

Part Details | TACKLE BLOCK

3940-00-879-2137 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: 3074UK16, 3074UK-16, 3074UK16, 3074UK-16, GGGB490, GGG-B-490, 3940-00-879-2137, 00-879-2137, 3940008792137, 008792137

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196200-879-213706117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SAFETY LOCKING

OBLONG SWIVEL EYE AND SHACKLE

OVAL PATTERN

Cross Reference | NSN 3940-00-879-2137
Part Number Cage Code Manufacturer
3074UK-1696508APEX TOOL GROUP
3074UK-1665LN0APEX TOOL GROUP, LLC
GGG-B-49081348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
Technical Data | NSN 3940-00-879-2137
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHELL LENGTH16.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER9.000 INCHES NOMINAL
CENTER PIN DIAMETER1.000 INCHES NOMINAL
BLOCK TYPE SNATCH
LOCKING STYLE SAFETY LOCKING
SURFACE TREATMENT AND LOCATION ZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE FIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED2.000 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE8 OBLONG SWIVEL EYE AND SHACKLE
MAXIMUM LOAD RATING16000.0 POUNDS
SPECIAL FEATURESSHEAVE THICKNESS AT RIM MIN 2.625 IN.
NONDEFINITIVE SPEC/STD DATA3 TYPE