The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-540-2354, 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 Raytheon Company. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-540-2354 |
| Primary Part Number | 563-900-039 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | TWIST-LOCK 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 |
|---|---|
| 547549 | Naval Sea Systems Command (USA) |
| 563-900-039 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 1306J-8C | 5/2 Secondary reference U.S. Government activity |
| 5475494 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4730-00-540-2354 is a Coupling Half,quick Disconnect, manufactured by Raytheon Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-540-2354 has 2 manufacturer part numbers on file: 547549 (Naval Sea Systems Command), 563-900-039 (Raytheon Company).
Key specifications for 563-900-039: Connection Style: FLARED ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Style Designator: MALE COUPLING HALF. 12 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.