The Thread Piece,union, cataloged under National Stock Number 4730-01-515-0638, 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 Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-515-0638 |
| Primary Part Number | 6391450 FIND 014 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Union End Thread Direction | RIGHT-HAND |
| Nominal Pipe Size Designation | 0.750 INCHES IN |
| End Connection Type | THREADED |
| Seat Type | STRAIGHT FACE |
| Tubing Outside Diameter | 1.000 INCHES NOMINAL IN |
| Thread Size | 2-12 |
| Material | STEEL CORROSION RESISTING |
| Working Pressure and Service Type | 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS |
| 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 |
|---|---|
| 6391450 FIND 014 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6391450 | D/9 Drawing number reference only Naval Sea Systems Command |
| 512-6391450 | 5/9 Secondary reference Naval Sea Systems Command |
| 104T-4-SS | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-515-0638 is a Thread Piece,union, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-515-0638 has 1 manufacturer part number on file: 6391450 FIND 014 (Naval Sea Systems Command).
Key specifications for 6391450 FIND 014: Union End Thread Direction: RIGHT-HAND; Nominal Pipe Size Designation: 0.750 INCHES IN; End Connection Type: THREADED; Overall Length: 1.312 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.