The Adapter,straight,flange to Flang, cataloged under National Stock Number 4730-00-201-9596, 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 Northrop Grumman Systems Corporation. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-201-9596 |
| Primary Part Number | 1128ECP41607-3 |
| Item Name | Adapter,straight,flange to Flang |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES SECOND END |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 3.500 INCHES SECOND END IN |
| Nominal Overall Length | 2.360 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Nominal Diameter | 0.268 INCHES SECOND END IN |
| Bolt Hole Quantity | 2 SECOND END |
| Surface Treatment | EPOXY AND LACQUER OUTSIDE |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | PLASTIC OVERALL |
| 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 |
|---|---|
| 1128ECP41607-3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128ECP41607 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 1128ECP41607-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-201-9596 is a Adapter,straight,flange to Flang, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-201-9596 has 1 manufacturer part number on file: 1128ECP41607-3 (Northrop Grumman Systems Corporation).
Key specifications for 1128ECP41607-3: Flange Shape: OVAL WITH HOLES SECOND END; Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 3.500 INCHES SECOND END IN. 11 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.