NSN 3940-00-264-4777

Part Details | TACKLE BLOCK

3940-00-264-4777 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: S1801770377PC1T01215T022, S1801-770377PC1T012-15T022, 3940-00-264-4777, 00-264-4777, 3940002644777, 002644777

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196300-264-477706117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SAFETY LOCKING

ROUND SWIVEL EYE

ROUND PATTERN

Cross Reference | NSN 3940-00-264-4777
Part Number Cage Code Manufacturer
S1801-770377PC1T012-15T02280064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 3940-00-264-4777
Characteristic Specifications
STYLE DESIGNATOR ROUND PATTERN
SHEAVE OUTSIDE DIAMETER20.000 INCHES NOMINAL
CENTER PIN DIAMETER1.750 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 PRESSURE GREASE FITTING
TACKLE ACCOMMODATED TYPE WIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.875 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE ROUND SWIVEL EYE
MAXIMUM LOAD RATING19700.0 POUNDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MAXIMUM TACKLE DIAMETER ACCOMMODATED AND BY ATTACHMENT STYLE
EXTRA LONG REFERENCE NUMBERS1801-770377PC1TO12-15TO22-25TO29