The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-052-5228, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-052-5228 |
| Primary Part Number | 59A120A6-15-4S |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Mating End Identification | ROYLYN INC. COUPLING HALF,QUICK DISCONNECT,PART NO. 1031-6 |
| Connection Type | EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END |
| Connection Type | THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | PUSH-LOCK SECOND QUICK DISCONNECT END |
| Thread Series Designator | NPT 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 |
|---|---|
| 59A120A6-15-4S | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1022-6C | 3/2 Design control — primary reference U.S. Government activity |
| 59-A-120-AG-15 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-052-5228 is a Coupling Half,quick Disconnect, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-052-5228 has 1 manufacturer part number on file: 59A120A6-15-4S (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 59A120A6-15-4S: Connection Style: PLAIN ALL ENDS; Mating End Identification: ROYLYN INC. COUPLING HALF,QUICK DISCONNECT,PART NO. 1031-6; Connection Type: EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION. 9 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.