NSN 3940-00-641-2142
Part Details | TACKLE BLOCK
3940-00-641-2142 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: 75001437530 PC 1TO12, 7500-1437530 PC 1TO12, 75001437530ALTAPC1T012, 7500-1437530ALTAPC1T012, 3940-00-641-2142, 00-641-2142, 3940006412142, 006412142
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 39 | JAN 01, 1963 | 00-641-2142 | 06117 ( BLOCK, TACKLE ) |
REFERENCE DRAWINGS & PICTURES
SAFETY W/LATCH PIN
PEAR SHAPED SWIVEL EYE
OVAL PATTERN
Cross Reference | NSN 3940-00-641-2142
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7500-1437530 PC 1TO12 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 7500-1437530ALTAPC1T012 | 81316 | PORTSMOUTH NAVAL SHIPYARD |
Technical Data | NSN 3940-00-641-2142
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | 5 OVAL PATTERN |
| SHEAVE OUTSIDE DIAMETER | 3.375 INCHES NOMINAL |
| CENTER PIN DIAMETER | 0.679 INCHES MINIMUM AND 0.681 INCHES MAXIMUM |
| BLOCK TYPE | SNATCH |
| LOCKING STYLE | SAFETY W/LATCH PIN |
| SHEAVE QUANTITY | 1 |
| BEARING TYPE | PLAIN |
| SHEAVE BEARING LUBRICATION METHOD | SELF-LUBRICATED |
| TACKLE ACCOMMODATED TYPE | WIRE ROPE |
| MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.875 INCHES |
| TACKLE LOCKING DEVICE | NOT INCLUDED |
| ANTITOPPLING DEVICE | NOT INCLUDED |
| ATTACHMENT STYLE | 1 PEAR SHAPED SWIVEL EYE |
| MAXIMUM LOAD RATING | 2500.0 POUNDS |