The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-258-1059, 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 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-258-1059 |
| Primary Part Number | 70209-74015-102 |
| Item Name | Adapter,straight,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 | ROUND WITH HOLES SECOND END |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | SHOULDERED (GASKET) (TUBE) FIRST END |
| Bolt Circle Nominal Diameter | 5.312 INCHES SECOND END IN |
| Nominal Overall Length | 1.375 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.218 INCHES SECOND END IN |
| Nominal Outside Diameter | 5.968 INCHES SECOND END IN |
| Bolt Hole Quantity | 6 SECOND END |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Nominal Thickness | 0.125 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 |
|---|---|
| 70209-74015-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 4730-01-258-1059 is a Adapter,straight,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 4730-01-258-1059 has 1 manufacturer part number on file: 70209-74015-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70209-74015-102: Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: PLAIN SECOND END; Connection Style: SHOULDERED (GASKET) (TUBE) FIRST END; Bolt Circle Nominal Diameter: 5.312 INCHES SECOND END IN. 12 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.