The Stem,fluid Valve, cataloged under National Stock Number 4820-01-186-0590, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Maritime Controls Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Maritime Controls Inc (CAGE 72805) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-186-0590 |
| Primary Part Number | 452328 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Maritime Controls Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 452328 PRIMARY | Maritime Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 452328 | 5/9 Secondary reference U.S. Government activity |
| AE-4498 FIG 469 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 10-00-1220 PIECE 7-1 1/2IN | 5/9 Secondary reference U.S. Government activity |
| 6123187 | 5/9 Secondary reference U.S. Government activity |
| AE-4498 PIECE 71/2IN | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-186-0590 is a Stem,fluid Valve, manufactured by Maritime Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-186-0590 has 1 manufacturer part number on file: 452328 (Maritime Controls Inc).
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.