The Valve Assembly, cataloged under National Stock Number 4820-01-488-5489, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Esi Acquisition Corp Dba Moody Marine Service. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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 | 4820-01-488-5489 |
| Primary Part Number | 1KW04PN2-ZNB40-B6 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Esi Acquisition Corp Dba Moody Marine Service |
| Status | ACTIVE |
| Valve Size | 4.000 INCHES IN |
| 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 |
|---|---|
| 1KW04PN2-ZNB40-B6 PRIMARY | Esi Acquisition Corp Dba Moody Marine Service (USA) |
| 1KW04PN2-ZNB40-B6 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| 1KW04PN2-ZNB40-B6 PRIMARY | Ja Moody Llc (USA) |
NSN 4820-01-488-5489 is a Valve Assembly, manufactured by Esi Acquisition Corp Dba Moody Marine Service, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-488-5489 has 3 manufacturer part numbers on file: 1KW04PN2-ZNB40-B6 (Esi Acquisition Corp Dba Moody Marine Service), 1KW04PN2-ZNB40-B6 (Emerson Automation Solutions Final Control Us Lp), 1KW04PN2-ZNB40-B6 (Ja Moody Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-721-2614. Verify interchangeability with system specifications before substitution.
Key specifications for 1KW04PN2-ZNB40-B6: Valve Size: 4.000 INCHES IN; Special Features: 285 PSI. 1 specification is 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.