The Tube Assembly,metal, cataloged under National Stock Number 4710-01-363-3689, 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. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-363-3689 |
| Primary Part Number | 443513 |
| 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 |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Supplementary Features | DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY |
| Criticality Code Justification | SUPP |
| Material Document and Classification | AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.022 INCHES NOMINAL IN |
| End Connection Style | FLARED SECOND END |
| End Connection Style | SWIVEL NUT, INVERTED FLARE FIRST END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL COMP 321 TUBING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 443513 | Parts Life Inc (USA) |
| 443513 | Tomco Machining, Inc. (USA) |
| 443513 | Rtx Corporation Div Pratt & Whitney (USA) |
| 443513 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 443513 | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders |
| 443513 | 5/9 Secondary reference E.a. Patten Co Llc |
| 443513 | 5/9 Secondary reference Aero Tube Technologies, Llc Dba Tube Bends |
| 443513 | 5/9 Secondary reference Kreisler Industrial Corporation |
NSN 4710-01-363-3689 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 4710-01-363-3689 has 4 manufacturer part numbers on file: 443513 (Parts Life Inc), 443513 (Tomco Machining, Inc.), 443513 (Rtx Corporation Div Pratt & Whitney), 443513 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 443513: Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Supplementary Features: DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY; Criticality Code Justification: SUPP. 10 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.