The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-018-1646, 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 Astec America Inc.. Government technical data includes 15 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 | 4730-01-018-1646 |
| Primary Part Number | 354-19841 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Astec America Inc. |
| Status | ACTIVE |
| Connection Style | STREAMLINED W/ ONE BRAZING RING (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Style | GROOVED (TUBE) THIRD END |
| Tubing Wall Nominal Thickness for Which Designed | 0.045 INCHES FIRST END IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED EXTERNAL TUBE THIRD END |
| Nominal Outside Diameter Tube Accommodated | 0.875 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.812 INCHES THIRD END IN |
| Leg Length | 2.000 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.688 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.688 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.375 INCHES SECOND END IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT SECOND END |
| 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 |
|---|---|
| 354-19841 PRIMARY | Astec America Inc. (USA) |
NSN 4730-01-018-1646 is a Tee,pipe to Tube, manufactured by Astec America Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-018-1646 has 1 manufacturer part number on file: 354-19841 (Astec America Inc.).
Key specifications for 354-19841: Connection Style: STREAMLINED W/ ONE BRAZING RING (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Connection Style: GROOVED (TUBE) THIRD END; Tubing Wall Nominal Thickness for Which Designed: 0.045 INCHES FIRST END IN. 15 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.