The Monitor,engine, cataloged under National Stock Number 2990-01-733-8904, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Monitor,engine |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Essex Electro Engineers Inc (CAGE 21269); Brighton Cromwell Llc (CAGE 3NNX8) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-733-8904 |
| Primary Part Number | C739-0201 |
| Item Name | Monitor,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| 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 |
|---|---|
| C739-0201 PRIMARY | Essex Electro Engineers Inc (USA) |
| C739-0201 PRIMARY | Brighton Cromwell Llc (USA) |
| Reference | Meaning |
|---|---|
| 4282AS3755 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 4282AS3755-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 2990-01-733-8904 is a Monitor,engine, manufactured by Essex Electro Engineers Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-733-8904 has 2 manufacturer part numbers on file: C739-0201 (Essex Electro Engineers Inc), C739-0201 (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.