The Tube and Fittings,metallic, cataloged under National Stock Number 4710-00-406-2895, 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 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-00-406-2895 |
| Primary Part Number | 657370 |
| Item Name | Tube and Fittings,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | TF-30 AIRCRAFT ENGINE |
| Wall Thickness | 0.060 INCHES NOMINAL IN |
| End Connection Style | PLAIN SINGLE END |
| Tube Outside Diameter | 0.510 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 657370 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 657370 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4710-00-406-2895 is a Tube and Fittings,metallic, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-406-2895 has 1 manufacturer part number on file: 657370 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 1450-00-960-0317. Verify interchangeability with system specifications before substitution.
Key specifications for 657370: FSC Application Data: TF-30 AIRCRAFT ENGINE; Overall Length: 12.760 INCHES NOMINAL IN; Wall Thickness: 0.060 INCHES NOMINAL IN; End Connection Style: PLAIN SINGLE END. 4 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 4710-00-406-2895 has DEMIL Code B. 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.