The Thread Piece,union, cataloged under National Stock Number 4730-01-540-3793, 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 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-540-3793 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Union End Thread Direction | RIGHT-HAND |
| End Connection Type | SWEAT SOLDER |
| Union End Thread Size | 1.500-12 |
| Seat Type | RECESSED FACE |
| Tubing Outside Diameter | 1.000 INCHES NOMINAL IN |
| Union End Screw Thread Series Designator | UNF |
| Material | NICKEL ALLOY |
| Working Pressure and Service Type | 5500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL HYDRAULIC OIL LBS |
| 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 |
|---|---|
| 6392303 FIND 009 | 5/1 Secondary reference Naval Sea Systems Command |
| 6392303 | D/9 Drawing number reference only Naval Sea Systems Command |
| H849T-16-M-LW | 3/2 Design control — primary reference U.S. Government activity |
| 6394697 FIND 001 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4730-01-540-3793 is a Thread Piece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-540-3793: Union End Thread Direction: RIGHT-HAND; End Connection Type: SWEAT SOLDER; Union End Thread Size: 1.500-12; Overall Length: 1.375 INCHES NOMINAL IN. 8 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.