The Tube Assembly,metal, cataloged under National Stock Number 4710-00-797-0041, 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 7 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-797-0041 |
| Primary Part Number | 540144 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Wall Thickness | 0.065 INCHES NOMINAL IN |
| End Connection Style | UNTHREADED EXTERNAL SINGLE END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SINGLE END |
| Material | STEEL CORROSION RESISTING TUBING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 540144 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 540144 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 540144 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4710-00-797-0041 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 4710-00-797-0041 has 2 manufacturer part numbers on file: 540144 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 540144 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-091-5175. Verify interchangeability with system specifications before substitution.
Key specifications for 540144: Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Wall Thickness: 0.065 INCHES NOMINAL IN; End Connection Style: UNTHREADED EXTERNAL SINGLE END. 7 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.
NSN 4710-00-797-0041 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.