NSN 4730-00-683-8649
Part Details | TUBE FITTING LOCKNUT
4730-00-683-8649 An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON.
Alternate Parts: AN6289J20, AN6289C20, AS5179J20, AS5179, AS4841, 4730-00-683-8649, 00-683-8649, 4730006838649, 006838649
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | JAN 01, 1963 | 00-683-8649 | 17645 ( LOCKNUT, TUBE FITTING ) |
REFERENCE DRAWINGS & PICTURES
TUBE FITTING LOCKNUT
Cross Reference | NSN 4730-00-683-8649
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| AN6289J20 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
| AN6289C20 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
| AS5179J20 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS5179 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS4841 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
Technical Data | NSN 4730-00-683-8649
| Characteristic | Specifications |
|---|---|
| THREAD SERIES | UN |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 12 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| NUT STYLE | TUBE FITTING LOCKNUT |
| WIDTH ACROSS FLATS | 1.922 INCHES MINIMUM AND 1.954 INCHES MAXIMUM |
| PACKING RECESS DIAMETER | 1.854 INCHES NOMINAL |
| PACKING RECESS DEPTH | 0.054 INCHES NOMINAL |
| NOMINAL TUBE OUTSIDE DIAMETER | 1.250 INCHES |