The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-435-4707, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-435-4707 |
| Primary Part Number | 3447AS121 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 2.031 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES CENTER BULKHEAD IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 3A CENTER BULKHEAD A |
| Thread Class | 3A FIRST END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF CENTER BULKHEAD |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| 259-2240-4-4 | Danfoss Power Solutions II, Llc (USA) |
| 3447AS121 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 2240-4-4C | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 259-2240-4-4 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
NSN 4730-01-435-4707 is a Adapter,straight,pipe to Tube, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-435-4707 has 2 manufacturer part numbers on file: 259-2240-4-4 (Danfoss Power Solutions II, Llc), 3447AS121 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 3447AS121: Connection Style: FLARED (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 2.031 INCHES IN; Connection Type: THREADED EXTERNAL PIPE SECOND END. 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.