The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-020-9890, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-020-9890 |
| Primary Part Number | 3013789-19 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Connection Style | FLARE ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Connection Type | THREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-B-626,COMP 22,1/2 HARD FED SPEC 1ST MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 0.656 INCHES ALL ENDS IN |
| Leg Length | 1.094 INCHES NOMINAL IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 3A ALL ENDS A |
| Material | COPPER ALLOY AND STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 712521-19 | Raytheon Company Div Rmd Strategic (USA) |
| 3013789-19 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| AE96558G PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
NSN 4730-01-020-9890 is a Coupling Half,quick Disconnect, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-020-9890 has 3 manufacturer part numbers on file: 712521-19 (Raytheon Company Div Rmd Strategic), 3013789-19 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), AE96558G (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 3013789-19: Connection Style: FLARE ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END; Connection Type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 14 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.