The Tube Assembly,metal, cataloged under National Stock Number 4710-01-077-0329, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 — Pipe, Tube and Rigid Tubing (FSG 47) |
| Manufacturers | Kreisler Industrial Corporation (CAGE 05813); Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders (CAGE 21890); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); E.a. Patten Co Llc (CAGE 05819) |
| Parameter | Value |
|---|---|
| NSN | 4710-01-077-0329 |
| Primary Part Number | 646803 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 646803 | Kreisler Industrial Corporation (USA) |
| 646803 | Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders (USA) |
| 646803 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 646803 | E.a. Patten Co Llc (USA) |
| Reference | Meaning |
|---|---|
| 646803 | 5/9 Secondary reference Aero Tube Technologies, Llc Dba Tube Bends |
| 646803 | 5/9 Secondary reference U.S. Government activity |
| 646803 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 4710-01-077-0329 is a Tube Assembly,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-077-0329 has 4 manufacturer part numbers on file: 646803 (Kreisler Industrial Corporation), 646803 (Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders), 646803 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 646803 (E.a. Patten Co Llc).
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 4710-01-077-0329 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.