The Coupling,tube, cataloged under National Stock Number 4730-01-686-1984, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Pressure Systems, Inc. Dba Psi. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Coupling,tube |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Pressure Systems, Inc. Dba Psi (CAGE 64563) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-686-1984 |
| Primary Part Number | CFC-20-20A |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Pressure Systems, Inc. Dba Psi |
| 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 |
|---|---|
| CFC-20-20A PRIMARY | Pressure Systems, Inc. Dba Psi (USA) |
| Reference | Meaning |
|---|---|
| S10610-3300 FIND NO 18 | C/1 Advisory reference — outside the item-of-supply concept Supreme Integrated Technology, Inc. |
| S10610-3300 | D/9 Drawing number reference only Supreme Integrated Technology, Inc. |
NSN 4730-01-686-1984 is a Coupling,tube, manufactured by Pressure Systems, Inc. Dba Psi, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-686-1984 has 1 manufacturer part number on file: CFC-20-20A (Pressure Systems, Inc. Dba Psi).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-686-1999. 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.