The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-939-8653, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-939-8653 |
| Primary Part Number | 65307-03023-102 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Furnished Items and Quantity | 1 PREFORMED PACKING |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | RAISED STRAIGHT SECOND ENDUNABLE TO DECODE |
| Connection Style | GASKET SEAL (BOSS) INLET |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Length | 2.188 INCHES SECOND END IN |
| Inlet Location | LOW HEEL SINGLE INLET |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL BOSS INLET |
| Bolt Hole Nominal Diameter | 0.250 INCHES SECOND ENDUNABLE TO DECODE IN |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST ENDUNABLE TO DECODE IN |
| Leg Length | 2.375 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.375 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.625 INCHES NOMINAL INLET IN |
| Nominal Thread Size | 0.562 INCHES INLET IN |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST ENDUNABLE TO DECODE |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.625 INCHES SECOND ENDUNABLE TO DECODE IN |
| Bolt Hole Quantity | 4 SECOND END |
| Surface Treatment | PAINT OUTSIDEUNABLE TO DECODE |
| Nominal Width | 2.188 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.625 INCHES SECOND ENDUNABLE TO DECODE IN |
| Thread Class | 2A FIRST END A |
| Thread Class | 2B INLET |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALLUNABLE TO DECODE |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF INLET |
| 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 |
|---|---|
| 65307-03023-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 65307-03023-102 | Airbus Deutschland Gmbh -Werk Bremen- (DEU) |
NSN 4730-00-939-8653 is a Elbow,flange to Tube, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-939-8653 has 2 manufacturer part numbers on file: 65307-03023-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 65307-03023-102 (Airbus Deutschland Gmbh -Werk Bremen-).
Key specifications for 65307-03023-102: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Furnished Items and Quantity: 1 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Flange Face Design: RAISED STRAIGHT SECOND ENDUNABLE TO DECODE. 30 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.