The Valve,ball, cataloged under National Stock Number 4820-01-498-8425, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Stauff Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-498-8425 |
| Primary Part Number | MBBV-2-16-0001-M-LD4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Stauff Corp |
| Status | ACTIVE |
| Bolt Hole Quantity | 6 ALL ENDS |
| Material | STEEL 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 |
|---|---|
| 1977574-3 ITEM 27 | Northrop Grumman Systems Corporation (USA) |
| MBBV-2-16-0001-M-LD4 PRIMARY | Stauff Corp (USA) |
| 1858647 ITEM 27 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1977574-4 ITEM 27 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1858647 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 1977574 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| BBV25160001MSW14/OS/Z1E88 | 5/9 Secondary reference Stauff Corp |
NSN 4820-01-498-8425 is a Valve,ball, manufactured by Stauff Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-498-8425 has 4 manufacturer part numbers on file: 1977574-3 ITEM 27 (Northrop Grumman Systems Corporation), MBBV-2-16-0001-M-LD4 (Stauff Corp), 1858647 ITEM 27 (Northrop Grumman Systems Corporation), 1977574-4 ITEM 27 (Northrop Grumman Systems Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-498-8442, 4820-01-498-8459, 4820-01-498-8481. Verify interchangeability with system specifications before substitution.
Key specifications for MBBV-2-16-0001-M-LD4: Bolt Hole Quantity: 6 ALL ENDS; Special Features: NHA: HPU ASSEMBLY; Part Name Assigned by Controlling Agency: VALVE, BALL 1.00" SUBPLATE MOUNTED; Material: STEEL BODY. 3 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.