The Tube Assembly,metal, cataloged under National Stock Number 4710-00-020-0290, 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 Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-020-0290 |
| Primary Part Number | 725740-1 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Mating End Quantity | 2 SINGLE END |
| Wall Thickness | 0.031 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN |
| End Connection Style | SWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE SINGLE END |
| Tube Outside Diameter | 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| End Connection Spec/std | MIL,MS20819,PART NO. MS20819-3C |
| 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 |
|---|---|
| 725740-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 725740-1 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 4710-00-020-0290 is a Tube Assembly,metal, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-020-0290 has 1 manufacturer part number on file: 725740-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 725740-1: Mating End Quantity: 2 SINGLE END; Wall Thickness: 0.031 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN; End Connection Style: SWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE SINGLE END; Tube Outside Diameter: 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN. 5 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.