The Nut,tube Coupling, cataloged under National Stock Number 4730-01-101-1725, 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 Quantum Lean Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-101-1725 |
| Primary Part Number | 525R747H01 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Quantum Lean Llc |
| Status | ACTIVE |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Drilled Hole Diameter | 0.062 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Tube Outside Diameter | 0.438 INCHES IN |
| Hole Type and Quantity | 1 DRILLED |
| 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 |
|---|---|
| 525R747H01 PRIMARY | Quantum Lean Llc (USA) |
| Reference | Meaning |
|---|---|
| 525R747H01 | 5/2 Secondary reference U.S. Government activity |
| 525R747 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-101-1725 is a Nut,tube Coupling, manufactured by Quantum Lean Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-101-1725 has 1 manufacturer part number on file: 525R747H01 (Quantum Lean Llc).
Key specifications for 525R747H01: Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN; Drilled Hole Diameter: 0.062 INCHES NOMINAL IN. 10 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.