The Valve,check, cataloged under National Stock Number 4820-01-551-2597, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Johnson Controls Navy Systems, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-551-2597 |
| Primary Part Number | 02209205000 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Johnson Controls Navy Systems, 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 |
|---|---|
| 02209205000 | Johnson Controls Ltd, York Navy Systems (GBR) |
| 02209205000 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
NSN 4820-01-551-2597 is a Valve,check, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-551-2597 has 2 manufacturer part numbers on file: 02209205000 (Johnson Controls Ltd, York Navy Systems), 02209205000 (Johnson Controls Navy Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-625-2008. Verify interchangeability with system specifications before substitution.
Key specifications for 02209205000: Special Features: UN-2B INT STR THDS IN AND OUT REPUBLIC, 1-1/16-12; Part Name Assigned by Controlling Agency: VALVE, CHECK; End Item Identification: SSN ASTUTE CLASS ATTACK SUB. 0 specifications are documented in the U.S. Government catalog.
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.