NSN 3940-00-468-8521
Part Details | TACKLE BLOCK
3940-00-468-8521 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: 544535, 216381, 216-381, 3940-00-468-8521, 00-468-8521, 3940004688521, 004688521
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 39 | JAN 01, 1963 | 00-468-8521 | 06117 ( BLOCK, TACKLE ) |
REFERENCE DRAWINGS & PICTURES
PEAR SHAPED SWIVEL EYE
ROUND PATTERN
Cross Reference | NSN 3940-00-468-8521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 544535 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 216-381 | 81316 | PORTSMOUTH NAVAL SHIPYARD |
Technical Data | NSN 3940-00-468-8521
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND PATTERN |
| SHEAVE OUTSIDE DIAMETER | 12.500 INCHES NOMINAL |
| CENTER PIN DIAMETER | 1.497 INCHES NOMINAL |
| BLOCK TYPE | REGULAR |
| MATERIAL AND LOCATION | MANGANESE BRONZE SHEAVE AND MANGANESE BRONZE SHEAVE AND STEEL SHELL AND STEEL BEARING |
| SURFACE TREATMENT AND LOCATION | GALVANIZED OVERALL |
| SHEAVE QUANTITY | 1 |
| TACKLE ACCOMMODATED TYPE | WIRE ROPE |
| MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.750 INCHES |
| TACKLE LOCKING DEVICE | NOT INCLUDED |
| ANTITOPPLING DEVICE | NOT INCLUDED |
| ATTACHMENT STYLE | 1 PEAR SHAPED SWIVEL EYE |