The Regulator,nitrogen, cataloged under National Stock Number 4820-01-669-1543, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Regulator,nitrogen |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950); Rix Industries (CAGE 28953) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-669-1543 |
| Primary Part Number | 20103 ITEM 3CP |
| Item Name | Regulator,nitrogen |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 20103 ITEM 3CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 20103 ITEM 3 | Rix Industries (USA) |
| 20091 REV DCP | Naval Inventory Control Point Mechanicsburg (USA) |
| XM116-20091 OXYGEN CLEAN | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| XM116-20091 OXYGEN CLEANCP | 3/1 Design control — primary reference Naval Inventory Control Point Mechanicsburg |
| 20091 REV D | 5/1 Secondary reference Rix Industries |
NSN 4820-01-669-1543 is a Regulator,nitrogen, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-669-1543 has 4 manufacturer part numbers on file: 20103 ITEM 3CP (Naval Inventory Control Point Mechanicsburg), 20103 ITEM 3 (Rix Industries), 20091 REV DCP (Naval Inventory Control Point Mechanicsburg), XM116-20091 OXYGEN CLEAN (Rix Industries).
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.