The Reducer,tube, cataloged under National Stock Number 4730-01-366-7166, 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 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-366-7166 |
| Primary Part Number | R44277T-0806-28 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
| Status | ACTIVE |
| Connection Style | SWIVEL NUT, GASKET SEAL (TUBE) FIRST END |
| Connection Style | BEVELED (TUBE) SECOND END |
| Nominal Overall Length | 0.833 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.718 INCHES FIRST END IN |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJS FIRST END |
| Nominal Thickness | 0.028 INCHES SECOND END IN |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| R44277T-0806-28 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AP421TT0806-028 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| AE17124-0806-28 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 07A188-0806-28 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| R44277T | D/9 Drawing number reference only Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
NSN 4730-01-366-7166 is a Reducer,tube, 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 4730-01-366-7166 has 4 manufacturer part numbers on file: R44277T-0806-28 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AP421TT0806-028 (Sps Technologies, Llc Dba Airdrome Precision Components), AE17124-0806-28 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 07A188-0806-28 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-366-7167. Verify interchangeability with system specifications before substitution.
Key specifications for R44277T-0806-28: Connection Style: SWIVEL NUT, GASKET SEAL (TUBE) FIRST END; Connection Style: BEVELED (TUBE) SECOND END; Nominal Overall Length: 0.833 INCHES IN; Connection Type: UNTHREADED EXTERNAL TUBE SECOND END. 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.