The Tube Assy,elbow and, cataloged under National Stock Number 4710-00-574-5249, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Wk Engineering International, Inc. Dba Wk Engineering International Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Tube Assy,elbow and |
| FSC / FSG | 4710 — Pipe, Tube and Rigid Tubing (FSG 47) |
| Manufacturers | Wk Engineering International, Inc. Dba Wk Engineering International Inc (CAGE 58748); Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (CAGE 8X044) |
| Parameter | Value |
|---|---|
| NSN | 4710-00-574-5249 |
| Primary Part Number | 3444090 |
| Item Name | Tube Assy,elbow and |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Wk Engineering International, Inc. Dba Wk Engineering International Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 3444090 | Wk Engineering International, Inc. Dba Wk Engineering International Inc (USA) |
| 3444090 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 3444090 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4710-00-574-5249 is a Tube Assy,elbow and, manufactured by Wk Engineering International, Inc. Dba Wk Engineering International Inc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-574-5249 has 2 manufacturer part numbers on file: 3444090 (Wk Engineering International, Inc. Dba Wk Engineering International Inc), 3444090 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
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.