The Valve,rotary,selector, cataloged under National Stock Number 4820-00-175-4859, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-175-4859 |
| Primary Part Number | MC8830-9 |
| Item Name | Valve,rotary,selector |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE CONTROLLING DWG A51H9019 FSCM 26512 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MC8830-9 | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
| A51H9019-9 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H9019-9 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51H9019-9 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 4820-00-175-4859 is a Valve,rotary,selector, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-175-4859 has 2 manufacturer part numbers on file: MC8830-9 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace), A51H9019-9 (Northrop Grumman Systems Corporation).
Key specifications for MC8830-9: Special Features: SINGLE LEVER ACTION,MEDIA,PNEUMATIC; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SOURCE CONTROLLING DWG A51H9019 FSCM 26512. 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.
NSN 4820-00-175-4859 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.