The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-063-4456, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4730-00-063-4456 |
| Primary Part Number | AE73656N |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Bolt Circle Nominal Diameter | 2.625 INCHES IN |
| Style Designator | MALE COUPLING HALF |
| Bolt Hole Nominal Diameter | 0.201 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES ALL ENDS IN |
| Mounting Flange Location | FIRST LEG |
| Leg Length | 0.958 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Basic Shape Style | ROUND FIRST QUICK DISCONNECT END |
| Nominal Thread Size | 1.625 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Nominal Outside Diameter | 3.000 INCHES IN |
| Bolt Hole Quantity | 6 |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | QUICK LEAD THREAD ALL ENDS |
| Thread Series Designator | UN ALL ENDS |
| Nominal Thickness | 0.063 INCHES IN |
| 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 |
|---|---|
| AE73656N PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| ST48D114 | D/9 Drawing number reference only Lockheed Martin Corp |
| 014519S4-20D | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| ST48D114-2 | 5/9 Secondary reference Lockheed Martin Corp |
NSN 4730-00-063-4456 is a Coupling Half,quick Disconnect, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-063-4456 has 1 manufacturer part number on file: AE73656N (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-818-6582. Verify interchangeability with system specifications before substitution.
Key specifications for AE73656N: Connection Style: FLARED ALL ENDS; Bolt Circle Nominal Diameter: 2.625 INCHES IN; Style Designator: MALE COUPLING HALF; Overall Length: 2.788 INCHES NOMINAL IN. 19 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.