NSN 3940-00-264-4741

Part Details | TACKLE BLOCK


3940-00-264-4741 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: 2644741, S1801770370PC13T020, S1801-770370PC1-3T020, 3940-00-264-4741, 00-264-4741, 3940002644741, 002644741

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39JAN 01, 196300-264-474106117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

DIAMOND PATTERN


Cross Reference | NSN 3940-00-264-4741
Part Number Cage Code Manufacturer
264474108TX0FOSS-BROWN, INC
S1801-770370PC1-3T02080064NAVAL SHIP SYSTEMS COMMAND

Technical Data | NSN 3940-00-264-4741
Characteristic Specifications
STYLE DESIGNATOR DIAMOND PATTERN
SHEAVE OUTSIDE DIAMETER20.000 INCHES NOMINAL
CENTER PIN DIAMETER2.247 INCHES NOMINAL
BLOCK TYPE REGULAR
MATERIAL AND LOCATION BRONZE BEARING AND STEEL CENTER PIN AND STEEL SHEAVE AND STEEL SHELL
SURFACE TREATMENT AND LOCATION GALVANIZED OVERALL
SHEAVE QUANTITY4
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
SPECIAL FEATURESAS DIFFERENTIATED BY 0.875 IN WIREROPE SIZE,QUADRUPLE BLOCK