NSN 4730-01-159-7981
Part Details | PACKING NUT
4730-01-159-7981 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: 875531504 ITEM 7, 87553-1504 ITEM 7, 7084674147 ITEM 7, 708-4674147 ITEM 7, 7084674147, 708-4674147, 4730-01-159-7981, 01-159-7981, 4730011597981, 011597981
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | AUG 13, 1983 | 01-159-7981 | 18028 ( PACKING NUT ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON, EXTERNAL THREAD, INVERTED FLARE
Cross Reference | NSN 4730-01-159-7981
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 87553-1504 ITEM 7 | 96169 | ELECTRIC BOAT CORPORATION |
| 708-4674147 ITEM 7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 708-4674147 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
Technical Data | NSN 4730-01-159-7981
| Characteristic | Specifications |
|---|---|
| MATERIAL | 8$9 |
| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| STYLE DESIGNATOR | 3 HEXAGON, EXTERNAL THREAD, INVERTED FLARE |
| THREAD SIZE | 4.375-12 |
| SCREW THREAD SERIES DESIGNATOR | UN |
| THREAD LENGTH | 1.500 INCHES MAXIMUM |
| SCREW THREAD LOCATION | INTERNAL |
| THREAD DIRECTION | RIGHT-HAND |
| SLOT WIDTH | 0.500 INCHES NOMINAL |
| OVERALL LENGTH | 2.220 INCHES NOMINAL |
| LARGEST INSIDE DIAMETER | 4.900 INCHES NOMINAL |
| SMALLEST OUTSIDE DIAMETER | 3.000 INCHES MINIMUM AND 3.010 INCHES MAXIMUM |
| MAJOR UNTHREADED OUTSIDE DIAMETER | 6.250 INCHES NOMINAL |
| HOLE OR SLOT QUANTITY | 8 |
| THREAD CLASS | 2B |
| THREAD PITCH DIAMETERS | +4.2850 TO +4.3020 INCHES |