The Union,tube, cataloged under National Stock Number 4730-01-522-0647, 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 Johnson Controls Navy Systems, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-522-0647 |
| Primary Part Number | 023-18595 |
| Item Name | Union,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 377-03047-000 ITEM 186 | Johnson Controls Navy Systems, Llc (USA) |
| 377-03046-000 ITEM 186 | Johnson Controls Navy Systems, Llc (USA) |
| 023-18595 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 377-03046-000 | D/9 Drawing number reference only Johnson Controls Navy Systems, Llc |
| 377-03047-000 | D/9 Drawing number reference only Johnson Controls Navy Systems, Llc |
NSN 4730-01-522-0647 is a Union,tube, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-522-0647 has 3 manufacturer part numbers on file: 377-03047-000 ITEM 186 (Johnson Controls Navy Systems, Llc), 377-03046-000 ITEM 186 (Johnson Controls Navy Systems, Llc), 023-18595 (Johnson Controls Navy Systems, Llc).
Key specifications for 023-18595: Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN; Special Features: WHEN FITTING UP ALL O-RING UNION FITTING ITEMS REMOVE THE UNION END O-RING PRIOR TO BRAZING AND REINSTALL AFTER TAILPIECE HAS COOLED; Material: STEEL CORROSION RESISTING OVERALL. 2 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.