The Tailpiece,union, cataloged under National Stock Number 4730-01-520-3307, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-520-3307 |
| Primary Part Number | 6392296-01 FIND 009 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Union Outside Diameter | 0.906 INCHES NOMINAL IN |
| Nominal Pipe Size Designation | 0.125 INCHES IN |
| End Connection Type | WELDED |
| Seat Type | STRAIGHT FACE |
| Tubing Outside Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 6392296-01 FIND 009 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 104R-0-SS316L | 3/2 Design control — primary reference U.S. Government activity |
| 104R-0-SS | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-520-3307 is a Tailpiece,union, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-520-3307 has 1 manufacturer part number on file: 6392296-01 FIND 009 (Naval Sea Systems Command).
Key specifications for 6392296-01 FIND 009: Union Outside Diameter: 0.906 INCHES NOMINAL IN; Nominal Pipe Size Designation: 0.125 INCHES IN; End Connection Type: WELDED; Overall Length: 0.687 INCHES NOMINAL IN. 6 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.