The Reducer,tube, cataloged under National Stock Number 4730-01-352-3741, 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 The Boeing Company Div Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-352-3741 |
| Primary Part Number | ST7M208T0408 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Nominal Overall Length | 1.232 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 12.0 DEGREES SECOND END |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 24 SECOND END |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNJS SECOND END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST7M208T0408 PRIMARY | The Boeing Company Div Defense (USA) |
| AE16164-4-8 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| AP305T0408 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| R44181T0408 | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| Reference | Meaning |
|---|---|
| AE16281-4-8 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AP305P0408 | 5/9 Secondary reference Sps Technologies, Llc Dba Airdrome Precision Components |
| ST7M208 | D/9 Drawing number reference only The Boeing Company Div Defense |
| R44181P0408 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
NSN 4730-01-352-3741 is a Reducer,tube, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-352-3741 has 4 manufacturer part numbers on file: ST7M208T0408 (The Boeing Company Div Defense), AE16164-4-8 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), AP305T0408 (Sps Technologies, Llc Dba Airdrome Precision Components), R44181T0408 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-417-5938, 4730-01-706-4445. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M208T0408: Connection Style: FLARED (TUBE) FIRST END; Connection Style: FLARELESS (TUBE) SECOND END; Nominal Overall Length: 1.232 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 16 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.