The Tee,tube to Boss, cataloged under National Stock Number 4730-01-518-9801, 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 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-518-9801 |
| Primary Part Number | 6395047-1 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | SOCKET (TUBE) SECOND END |
| Connection Style | GASKET SEAL (BOSS) THIRD END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Tubing Wall Nominal Thickness for Which Designed | 0.048 INCHES SECOND END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.048 INCHES FIRST END IN |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL BOSS THIRD END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Material Document and Classification | 6AI-4V ELI ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Outside Diameter Tube Accommodated | 0.756 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.756 INCHES SECOND END IN |
| Leg Length | 1.190 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.190 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.840 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 1.3125 INCHES THIRD END IN |
| Thread Class | 3B THIRD END |
| Thread Quantity Per Inch | 12 THIRD END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) THIRD END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 6395047-1 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4730-01-518-9801 is a Tee,tube to Boss, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-518-9801 has 1 manufacturer part number on file: 6395047-1 (Naval Sea Systems Command).
Key specifications for 6395047-1: Flow Angle: 90.0 DEGREES; Connection Style: SOCKET (TUBE) SECOND END; Connection Style: GASKET SEAL (BOSS) THIRD END; Connection Style: SOCKET (TUBE) FIRST END. 21 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.