The Coupling,tube, cataloged under National Stock Number 4730-01-733-4276, 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 Essex Electro Engineers Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Coupling,tube |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Essex Electro Engineers Inc (CAGE 21269); Brighton Cromwell Llc (CAGE 3NNX8) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-733-4276 |
| Primary Part Number | C739-1204 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Essex Electro Engineers Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| C739-1204 PRIMARY | Essex Electro Engineers Inc (USA) |
| C739-1204 PRIMARY | Brighton Cromwell Llc (USA) |
| Reference | Meaning |
|---|---|
| 4282AS4752-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 4282AS4752 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4730-01-733-4276 is a Coupling,tube, manufactured by Essex Electro Engineers Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-733-4276 has 2 manufacturer part numbers on file: C739-1204 (Essex Electro Engineers Inc), C739-1204 (Brighton Cromwell Llc).
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.