The Valve,ball, cataloged under National Stock Number 4810-01-546-0198, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is F.s. Welsford Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-546-0198 |
| Primary Part Number | MV50-28-2 |
| Item Name | Valve,ball |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | F.s. Welsford Company |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Renewable Seat Ring Type | PRESSED-IN |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Voltage in Volts and Current Type | 120.0 AC |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | TITANIUM GR2 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.000 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Face to Face Distance | 5.000 INCHES IN |
| Material | TITANIUM ALLOY OVERALL |
| Valve Operation Method | ELECTRIC MOTOR |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER |
| 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 |
|---|---|
| MV50-28-2 | F.s. Welsford Company (USA) |
| Reference | Meaning |
|---|---|
| MV50-28-2/0311-S503-023/MBKSSEO3 | 5/1 Secondary reference F.s. Welsford Company |
| MV50-28-1/121-952-270-777-061/M- | 3/1 Design control — primary reference F.s. Welsford Company |
| MV50-28-1 | D/9 Drawing number reference only F.s. Welsford Company |
NSN 4810-01-546-0198 is a Valve,ball, manufactured by F.s. Welsford Company, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-546-0198 has 1 manufacturer part number on file: MV50-28-2 (F.s. Welsford Company).
Key specifications for MV50-28-2: Flange Shape: ROUND WITH HOLES ALL ENDS; Renewable Seat Ring Type: PRESSED-IN; Phase: SINGLE; Frequency in Hertz: 60.0. 15 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.