The Gear Operator,valve, cataloged under National Stock Number 4820-01-407-4902, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cunico Corporation. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-407-4902 |
| Primary Part Number | 85-279 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cunico Corporation |
| Status | ACTIVE |
| Features Provided | HANDWHEEL |
| Material | IRON |
| 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 |
|---|---|
| 85-279 PRIMARY | Cunico Corporation (USA) |
| DD-1715 REF NO 21 | Cunico Corporation (USA) |
| DD-1618 REF NO 21 | Cunico Corporation (USA) |
| Reference | Meaning |
|---|---|
| DD-4618 REF NO. 22 | C/1 Advisory reference — outside the item-of-supply concept Cunico Corporation |
NSN 4820-01-407-4902 is a Gear Operator,valve, manufactured by Cunico Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-407-4902 has 3 manufacturer part numbers on file: 85-279 (Cunico Corporation), DD-1715 REF NO 21 (Cunico Corporation), DD-1618 REF NO 21 (Cunico Corporation).
1 possible match (shared part number, not a government interchangeability claim): 8040-01-618-9402. Verify interchangeability with system specifications before substitution.
Key specifications for 85-279: Features Provided: HANDWHEEL; Special Features: VALVE PLUG; Material: IRON. 2 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.