The Valve,plug, cataloged under National Stock Number 4820-01-414-3637, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cunico Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-414-3637 |
| Primary Part Number | FRP3 3IN 3PORT FP5 W/GEAR OPER |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cunico Corporation |
| 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 |
|---|---|
| DD-1618 3IN FRP-3 3PORT FP5 | Cunico Corporation (USA) |
| FRP3 3IN 3PORT FP5 W/GEAR OPER PRIMARY | Cunico Corporation (USA) |
| Reference | Meaning |
|---|---|
| DD-1618 | D/9 Drawing number reference only Cunico Corporation |
NSN 4820-01-414-3637 is a Valve,plug, manufactured by Cunico Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-414-3637 has 2 manufacturer part numbers on file: DD-1618 3IN FRP-3 3PORT FP5 (Cunico Corporation), FRP3 3IN 3PORT FP5 W/GEAR OPER (Cunico Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-489-1814. Verify interchangeability with system specifications before substitution.
Key specifications for FRP3 3IN 3PORT FP5 W/GEAR OPER: Special Features: 3IN 3PORT W/GEAR OPERATOR IN. 0 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.