NSN 3940-00-174-6747

Part Details | TACKLE BLOCK

3940-00-174-6747 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: S1801770367PC13T020, S1801-770367PC1-3T020, 3940-00-174-6747, 00-174-6747, 3940001746747, 001746747

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196300-174-674706117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

DIAMOND PATTERN

BLOCK,TACKLE | 3940-00-174-6747, 001746747
Cross Reference | NSN 3940-00-174-6747
Part Number Cage Code Manufacturer
S1801-770367PC1-3T02080064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 3940-00-174-6747
Characteristic Specifications
STYLE DESIGNATOR DIAMOND PATTERN
SHEAVE OUTSIDE DIAMETER18.000 INCHES NOMINAL
CENTER PIN DIAMETER1.997 INCHES NOMINAL
BLOCK TYPE REGULAR
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 ACCOMMODATED0.750 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
BECKET TYPE SHACKLE
ANTITOPPLING DEVICE NOT INCLUDED
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MAXIMUM TACKLE DIAMETER ACCOMMODATED AND BY SHEAVE QUANTITY