The Gear Operator,valve, cataloged under National Stock Number 4820-01-699-1527, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Controls, Llc Dba Triumph Controls, Llc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Triumph Controls, Llc Dba Triumph Controls, Llc (CAGE 78710); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-699-1527 |
| Primary Part Number | CTORVO-000283 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Triumph Controls, Llc Dba Triumph Controls, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| CTORVO-000283 PRIMARY | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
| 505-8787566 REV A F-2 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 505-8787566 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-699-1527 is a Gear Operator,valve, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-699-1527 has 2 manufacturer part numbers on file: CTORVO-000283 (Triumph Controls, Llc Dba Triumph Controls, Llc), 505-8787566 REV A F-2 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-699-1534. Verify interchangeability with system specifications before substitution.
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.