The Packing Nut, cataloged under National Stock Number 4730-01-386-1742, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-386-1742 |
| Primary Part Number | 803-6397247-3X2X-42 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.562 INCHES NOMINAL IN |
| Style Designator | HEXAGON, EXTERNAL THREAD, SHOULDERED |
| Major Unthreaded Outside Diameter | 1.125 INCHES NOMINAL IN |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Smallest Inside Diameter | 0.531 INCHES NOMINAL IN |
| Screw Thread Location | EXTERNAL |
| Length to Shoulder | 1.281 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thread Class | 3A A |
| Thread Size | 1-1/8-12 |
| Casehardening Indicator | NOT CASEHARDENED |
| Screw Thread Series Designator | UNF |
| Unthreaded Portion Length | 0.094 INCHES NOMINAL IN |
| Largest Inside Diameter | 0.688 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 803-6397247-3X1X-42 | Naval Sea Systems Command (USA) |
| 803-6397247-3X2X-42 PRIMARY | Naval Sea Systems Command (USA) |
| 803-6397247 | Naval Sea Systems Command (USA) |
NSN 4730-01-386-1742 is a Packing Nut, manufactured by Naval Sea Systems Command, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-386-1742 has 3 cross-referenced part numbers: 803-6397247-3X1X-42 (Naval Sea Systems Command), 803-6397247-3X2X-42 (Naval Sea Systems Command), 803-6397247 (Naval Sea Systems Command).
There are 12 known substitutes for 4730-01-386-1742: 4820-01-121-9782, 4820-01-172-9148, 4820-01-184-9371 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 803-6397247-3X2X-42: Overall Length: 1.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Length: 0.562 INCHES NOMINAL IN; Style Designator: HEXAGON, EXTERNAL THREAD, SHOULDERED. 16 total characteristics are documented in the Federal Logistics Information System.