The Nut,tube Coupling, cataloged under National Stock Number 4730-01-050-3651, 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 Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-050-3651 |
| Primary Part Number | MR54044T-04W |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
| Status | ACTIVE |
| Length to Shoulder | 0.792 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.437 INCHES IN |
| Nut Height | 0.982 INCHES MINIMUM AND 1.044 INCHES MAXIMUM IN |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM ALLOY OVERALL |
| Smallest Inside Diameter | 0.192 INCHES MINIMUM AND 0.202 INCHES MAXIMUM 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 |
|---|---|
| MR54044T-04W PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AE16660-4W | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| MR54044T-04W | 5/9 Secondary reference U.S. Government activity |
| 4730PL1631646 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C7567-04L | 7/2 Vendor item drawing reference U.S. Government activity |
| MR54040T-04W | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
| 4730PL0890886 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MR54041T-04W | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
NSN 4730-01-050-3651 is a Nut,tube Coupling, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-050-3651 has 2 manufacturer part numbers on file: MR54044T-04W (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AE16660-4W (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for MR54044T-04W: Length to Shoulder: 0.792 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN; Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNS; Thread Direction: RIGHT-HAND. 11 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.