The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-00-552-4446, 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 Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-552-4446 |
| Primary Part Number | 4560-64 |
| Item Name | Coupling Half,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Maximum Operating Temp | 93.3 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | NICKEL BODY |
| Media for Which Designed | ETHYLENE GLYCOL/WATER MIXTURE SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL BODY |
| Thread Series Designator | UN 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 |
|---|---|
| A51E9102-43 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| 4560-64 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (USA) |
| Reference | Meaning |
|---|---|
| A51E9102-43 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-552-4446 is a Coupling Half,self-Sealing, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-552-4446 has 2 manufacturer part numbers on file: A51E9102-43 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), 4560-64 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-049-6212. Verify interchangeability with system specifications before substitution.
Key specifications for 4560-64: Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Overall Length: 2.490 INCHES NOMINAL IN. 13 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.