The Reducer,tube, cataloged under National Stock Number 4730-01-244-6028, 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 Wartsila Netherlands. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-244-6028 |
| Primary Part Number | 716529-4 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Wartsila Netherlands |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Tubing Wall Nominal Thickness for Which Designed | 0.083 INCHES SECOND END IN |
| Nominal Overall Length | 1.438 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | QQ-C-465,CL 630 OR CL 642 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.688 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID FIRST RESPONSE |
| Thread Class | 2A FIRST END A |
| Material | COPPER ALLOY OR ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNF FIRST END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 716529-4 PRIMARY | Wartsila Netherlands (NLD) |
| 716529-4 PRIMARY | Nelson Aero Space, Inc. (USA) |
| 716529-4 | Raytheon Company Div Rmd Strategic (USA) |
| 716529-4 PRIMARY | Aerofit, Llc (USA) |
| Reference | Meaning |
|---|---|
| 716529 | 7/1 Vendor item drawing reference Raytheon Company Div Rmd Strategic |
| 716529-4 | 5/9 Secondary reference United Supply Co Inc |
NSN 4730-01-244-6028 is a Reducer,tube, manufactured by Wartsila Netherlands, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-244-6028 has 4 manufacturer part numbers on file: 716529-4 (Wartsila Netherlands), 716529-4 (Nelson Aero Space, Inc.), 716529-4 (Raytheon Company Div Rmd Strategic), 716529-4 (Aerofit, Llc).
Key specifications for 716529-4: Connection Style: PLAIN (TUBE) SECOND END; Connection Style: FLARED (TUBE) FIRST END; Tubing Wall Nominal Thickness for Which Designed: 0.083 INCHES SECOND END IN; Nominal Overall Length: 1.438 INCHES IN. 17 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.