NSN 4730-00-274-3378
Part Details | PACKING NUT
4730-00-274-3378 An item having internal and/or external machine thread(s) (threads other than pipe or hose series), specifically designed to retain, by means or groove(s), shoulder(s), and the like, packing and/or a packing gland within a stuffing box. See also BUSHING, MACHINE THREAD; INVERTED NUT, TUBE COUPLING; and NUT, TUBE COUPLING. Excludes PACKING NUT, STUFFING TUBE; and use with electrical cable, and LOCKNUT, PIPE.
Alternate Parts: DD445S4501171ALT5PC70, DD445S4501-171ALT5PC70, HC112E, 4730-00-274-3378, 00-274-3378, 4730002743378, 002743378
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | JAN 01, 1961 | 00-274-3378 | 18028 ( PACKING NUT ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON, INTERNAL THREAD, SHOULDERED
Cross Reference | NSN 4730-00-274-3378
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| DD445S4501-171ALT5PC70 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| HC112E | 16712 | SIEMENS DEMAG DELAVALTURBOMACHINERY, INC. |
Technical Data | NSN 4730-00-274-3378
| Characteristic | Specifications |
|---|---|
| MATERIAL | 2$3$4$DST0310$DST0316$DST0321$DST0347$DST0410$DST0416$DST0420$DST0430 |
| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| STYLE DESIGNATOR | HEXAGON, INTERNAL THREAD, SHOULDERED |
| THREAD SIZE | 1.250-16 |
| SCREW THREAD SERIES DESIGNATOR | UN |
| THREAD LENGTH | 0.375 INCHES NOMINAL |
| SCREW THREAD LOCATION | INTERNAL |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.688 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.625 INCHES NOMINAL |
| LENGTH TO SHOULDER | 0.500 INCHES NOMINAL |
| SMALLEST INSIDE DIAMETER | 0.500 INCHES NOMINAL |
| THREAD CLASS | A3B$$A3B |
| SPECIAL FEATURES | 1 DRILLED AND TAPPED HOLE 3/16 IN.,- 32 THD LOCATED 1/4 IN. FROM THD END OF NUT ON HEX |