The Stem,fluid Valve, cataloged under National Stock Number 4820-01-289-3724, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Portland Valve Llc (CAGE 53154) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-289-3724 |
| Primary Part Number | 6274997FF |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| 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 |
|---|---|
| 6274997FF PRIMARY | Portland Valve Llc (USA) |
| V999TZR1000 ITEM 14 | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| V999TZR1000 | D/9 Drawing number reference only Hammel Dahl Inc |
| 6274997 | 5/9 Secondary reference Hammel Dahl Inc |
| V999TZR1000 ITEM 14 | 5/9 Secondary reference Hammel Dahl Inc |
NSN 4820-01-289-3724 is a Stem,fluid Valve, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-289-3724 has 2 manufacturer part numbers on file: 6274997FF (Portland Valve Llc), V999TZR1000 ITEM 14 (Portland Valve Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-289-3946. Verify interchangeability with system specifications before substitution.
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.