The Reducer,tube, cataloged under National Stock Number 4730-01-446-6942, 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 United States Steel Corporation. Government technical data includes 10 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 | 4730-01-446-6942 |
| Primary Part Number | 2MP4734 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | United States Steel Corporation |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Nominal Overall Length | 4.500 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Thread Size | 3.750 INCHES FIRST END IN |
| Nominal Thread Size | 2.750 INCHES SECOND END IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 8 SECOND END |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UN ALL ENDS |
| 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 |
|---|---|
| 2MP4734 PRIMARY | United States Steel Corporation (USA) |
NSN 4730-01-446-6942 is a Reducer,tube, manufactured by United States Steel Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-446-6942 has 1 manufacturer part number on file: 2MP4734 (United States Steel Corporation).
Key specifications for 2MP4734: Connection Style: PLAIN (TUBE) ALL ENDS; Nominal Overall Length: 4.500 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Nominal Thread Size: 3.750 INCHES FIRST END IN. 10 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.