The Valve,ball, cataloged under National Stock Number 4820-01-422-5173, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ulstein Usa Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-422-5173 |
| Primary Part Number | W0243-75 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ulstein Usa Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LEVER |
| Nominal Pipe Size Accommodated | 6.250 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | IRON CAST BODY |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| W0243-75 PRIMARY | Ulstein Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| W243/75 | 5/9 Secondary reference Kongsberg Maritime Cm As |
| W0243-75 | 5/9 Secondary reference Kongsberg Maritime Cm As |
NSN 4820-01-422-5173 is a Valve,ball, manufactured by Ulstein Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-422-5173 has 1 manufacturer part number on file: W0243-75 (Ulstein Usa Inc).
Key specifications for W0243-75: Furnished Items and Quantity: 1 LEVER; Nominal Pipe Size Accommodated: 6.250 INCHES ALL ENDS IN; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Material: IRON CAST BODY. 5 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.