The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-721-1256, 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 Transdigm Inc Div Adelwiggins Group. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 Assembly,quick Disconne |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286); Transdigm Inc Div Adelwiggins Group (CAGE 21392) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-721-1256 |
| Primary Part Number | 52922-921-16 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| 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 |
|---|---|
| 65664-00810-102 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 65664-00810 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 52922-921-16 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
NSN 4730-01-721-1256 is a Coupling Assembly,quick Disconne, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-721-1256 has 3 manufacturer part numbers on file: 65664-00810-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 65664-00810 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 52922-921-16 (Transdigm Inc Div Adelwiggins Group).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-722-9084. 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.