The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-723-3755, 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 Fm Af, Llc Dba American Fan Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Fm Af, Llc Dba American Fan Company (CAGE 75477) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-723-3755 |
| Primary Part Number | 505551-1550 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| 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 |
|---|---|
| 505551-1550 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| FF-19119-3 | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| FF-19119 | D/9 Drawing number reference only Fm Af, Llc Dba American Fan Company |
NSN 4730-01-723-3755 is a Coupling Assembly,quick Disconne, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-723-3755 has 2 manufacturer part numbers on file: 505551-1550 (Fm Af, Llc Dba American Fan Company), FF-19119-3 (Fm Af, Llc Dba American Fan Company).
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.