The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-566-9573, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-566-9573 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | EXTERNAL PLUNGER TYPE SECOND QUICK DISCONNECT END |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST FLUID END CONNECTION |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END |
| Style Designator | FEMALE COUPLING HALF |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Quick Disconnect Nominal Size | 0.250 INCHES SECOND QUICK DISCONNECT END IN |
| Nominal Thread Size | 0.3750 INCHES FIRST FLUID END CONNECTION IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Quantity Per Inch | 18 FIRST FLUID END CONNECTION |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC SEAT |
| Thread Series Designator | NPTF FIRST FLUID END CONNECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B12E | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division |
| B12E | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-566-9573 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-566-9573: Connection Style: EXTERNAL PLUNGER TYPE SECOND QUICK DISCONNECT END; Connection Style: SWIVEL NUT, GASKET SEAL FIRST FLUID END CONNECTION; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Type: INTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END. 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.