The Valve,purge, cataloged under National Stock Number 4820-01-584-9240, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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,purge |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Johnson Controls Navy Systems, Llc (CAGE 66935); Superior Valve Co (CAGE 58553) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-584-9240 |
| Primary Part Number | A17503 |
| Item Name | Valve,purge |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Superior Valve Co |
| 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 |
|---|---|
| 022-11328-000 | Johnson Controls Navy Systems, Llc (USA) |
| 377-16601-000 REV B ITEM 4 | Johnson Controls Navy Systems, Llc (USA) |
| A17503 PRIMARY | Superior Valve Co (USA) |
| Reference | Meaning |
|---|---|
| 377-16601-000 | D/9 Drawing number reference only Johnson Controls Navy Systems, Llc |
| 617A-6S6 | 5/9 Secondary reference Superior Valve Co |
NSN 4820-01-584-9240 is a Valve,purge, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-584-9240 has 3 manufacturer part numbers on file: 022-11328-000 (Johnson Controls Navy Systems, Llc), 377-16601-000 REV B ITEM 4 (Johnson Controls Navy Systems, Llc), A17503 (Superior Valve Co).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-621-2537. 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.