The Packing Nut, cataloged under National Stock Number 4730-01-166-2212, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Morse Diving, Inc.. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-166-2212 |
| Primary Part Number | 592-4758641 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Morse Diving, Inc. |
| Status | ACTIVE |
| Length to Shoulder | 0.938 INCHES NOMINAL IN |
| Hole or Slot Quantity | 4 |
| Thread Length | 0.734 INCHES NOMINAL IN |
| Style Designator | ROUND, INTERNAL THREAD, SHOULDERED |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 1 1/4-12 |
| Screw Thread Series Designator | UNF |
| Thread Class | 2B |
| Major Unthreaded Outside Diameter | 1.406 INCHES NOMINAL IN |
| Screw Thread Location | INTERNAL |
| Material | COPPER ALLOY |
| Smallest Inside Diameter | 1.000 INCHES NOMINAL IN |
| Hole Diameter | 0.078 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 592-4758641 PRIMARY | Morse Diving, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4758641 | D/9 Drawing number reference only U.S. Government activity |
| 592-4758641 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-166-2212 is a Packing Nut, manufactured by Morse Diving, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-166-2212 has 1 manufacturer part number on file: 592-4758641 (Morse Diving, Inc.).
Key specifications for 592-4758641: Length to Shoulder: 0.938 INCHES NOMINAL IN; Hole or Slot Quantity: 4; Thread Length: 0.734 INCHES NOMINAL IN; Style Designator: ROUND, INTERNAL THREAD, SHOULDERED. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.