The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-381-7540, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-381-7540 |
| Primary Part Number | 209207-10 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flange Face Design | PLAIN SECOND ENDUNABLE TO DECODE |
| Connection Style | PLAIN (TUBE) INLET |
| Connection Style | PLAIN (TUBE) FIRST END |
| Nominal Length | 4.760 INCHES SECOND END IN |
| Inlet Location | LOW HEEL SINGLE INLET |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL TUBE INLET |
| Bolt Hole Nominal Diameter | 0.360 INCHES SECOND ENDUNABLE TO DECODE IN |
| Nominal Outside Diameter Tube Accommodated | 0.188 INCHES INLETUNABLE TO DECODE IN |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES FIRST ENDUNABLE TO DECODE IN |
| Leg Length | 1.500 INCHES NOMINAL SECOND END IN |
| Leg Length | 3.960 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 2.188 INCHES FIRST END IN |
| Nominal Thread Size | 0.375 INCHES INLET IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 3.880 INCHES SECOND ENDUNABLE TO DECODE IN |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 4.760 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.880 INCHES SECOND ENDUNABLE TO DECODE IN |
| Thread Class | 2B FIRST END |
| Thread Class | 2B INLET |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALLUNABLE TO DECODE |
| Thread Series Designator | UNS FIRST END |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) INLET |
| Nominal Thickness | 0.530 INCHES SECOND END 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 |
|---|---|
| 209207PC10 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 209207PC10 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 209207-10 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 209207 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-00-381-7540 is a Elbow,flange to Tube, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-381-7540 has 3 manufacturer part numbers on file: 209207PC10 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 209207PC10 (Lockheed Martin Corporation Div Rms - Mitchel Field), 209207-10 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-381-7541. Verify interchangeability with system specifications before substitution.
Key specifications for 209207-10: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flange Face Design: PLAIN SECOND ENDUNABLE TO DECODE; Connection Style: PLAIN (TUBE) INLET; Connection Style: PLAIN (TUBE) FIRST END. 27 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.