The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-440-2905, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Schneider Electric Systems Usa Inc. The record lists 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Valve,regulating,temperature |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Schneider Electric Systems Usa Inc (CAGE 73475); Advance Control Equipment Co (CAGE 4F536) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-440-2905 |
| Primary Part Number | I-1041-L15 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Schneider Electric Systems Usa 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 |
|---|---|
| RT224 1 1/2 IN | Schneider Electric Systems Usa Inc (USA) |
| 51364-R 1-1/2 IN | Schneider Electric Systems Usa Inc (USA) |
| RT224 1-1/2 IN | Advance Control Equipment Co (USA) |
| I-1041-L15 PRIMARY | Schneider Electric Systems Usa Inc (USA) |
| RT-224 1-1/2IN | Schneider Electric Systems Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 51364-R | D/9 Drawing number reference only Schneider Electric Systems Usa Inc |
| 51364-R 1-1/2 IN | 5/9 Secondary reference Advance Control Equipment Co |
NSN 4820-01-440-2905 is a Valve,regulating,temperature, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-2905 has 5 manufacturer part numbers on file: RT224 1 1/2 IN (Schneider Electric Systems Usa Inc), 51364-R 1-1/2 IN (Schneider Electric Systems Usa Inc), RT224 1-1/2 IN (Advance Control Equipment Co), I-1041-L15 (Schneider Electric Systems Usa Inc), RT-224 1-1/2IN (Schneider Electric Systems Usa Inc).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-441-6772. 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.