The Valve Unit, cataloged under National Stock Number 4820-01-426-8520, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kockum Products. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-426-8520 |
| Primary Part Number | 2451-0043 |
| Item Name | Valve Unit |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kockum Products |
| Status | ACTIVE |
| Special Markings | 230V 60HZ/24V DC V |
| 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 |
|---|---|
| 2451-0043 PRIMARY | Kockum Products (USA) |
| 2451-0043 | Kockum Sonics Aktiebolag (SWE) |
| KSM264E/9502 | Kockum Sonics Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| KSM264E/9502 | 5/9 Secondary reference Kockum Sonics Ab |
| 2451-0043 | 5/9 Secondary reference Kockum Sonics Ab |
NSN 4820-01-426-8520 is a Valve Unit, manufactured by Kockum Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-426-8520 has 3 manufacturer part numbers on file: 2451-0043 (Kockum Products), 2451-0043 (Kockum Sonics Aktiebolag), KSM264E/9502 (Kockum Sonics Aktiebolag).
Key specifications for 2451-0043: Special Features: FOR TV 784; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Special Markings: 230V 60HZ/24V DC V. 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.