The Reducer,tube, cataloged under National Stock Number 4730-01-028-1780, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-028-1780 |
| Primary Part Number | AE16828-16-12 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Connection Style | GROOVED INSIDE (TUBE) SECOND END |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) FIRST END |
| Nominal Overall Length | 1.453 INCHES IN |
| Criticality Code Justification | FEAT |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Nominal Thread Size | 1.250 INCHES FIRST END IN |
| Seat Angle | 8.5 DEGREES FIRST END |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 14 FIRST END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJS FIRST END |
| Reducer Type | CONCENTRIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AE16828-16-12 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| LE273-0031-0010 | The Boeing Company Div Legacy Am&m (USA) |
| 7M525T1612 | The Boeing Company Div Defense (USA) |
| MR54048T-1612 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AE16186-16-12 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| ST7M240T1612 PRIMARY | The Boeing Company Div Defense (USA) |
| GF503BK1612A PRIMARY | Northrop Grumman Systems Corporation (USA) |
| AP442T1612 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| Reference | Meaning |
|---|---|
| 10108489 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MR54027T1612 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
| 7M525 | D/9 Drawing number reference only The Boeing Company Div Defense |
| LE273-0031 | 7/1 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 4730-01-028-1780 is a Reducer,tube, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-028-1780 has 8 manufacturer part numbers on file: AE16828-16-12 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), LE273-0031-0010 (The Boeing Company Div Legacy Am&m), 7M525T1612 (The Boeing Company Div Defense), MR54048T-1612 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AE16186-16-12 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution) and 3 more.
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-081-5732, 4730-01-179-2912, 4730-01-179-5403. Verify interchangeability with system specifications before substitution.
Key specifications for AE16828-16-12: Connection Style: GROOVED INSIDE (TUBE) SECOND END; Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END; Nominal Overall Length: 1.453 INCHES IN; Criticality Code Justification: FEAT. 15 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.