The Tube,bent,metallic, cataloged under National Stock Number 4710-01-366-0664, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-01-366-0664 |
| Item Name | Tube,bent,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Status | ACTIVE |
| First End Style | PLAIN |
| Heat Treatment | ANNEALED |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Wall Thickness | 0.035 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Height | 0.250 INCHES NOMINAL IN |
| Width | 0.250 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Construction | SEAMLESS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 109692 | 3/2 Design control — primary reference U.S. Government activity |
| 109692-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4710-01-366-0664 is a Tube,bent,metallic, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-473-5754. Verify interchangeability with system specifications before substitution.
Key specifications for 4710-01-366-0664: First End Style: PLAIN; Heat Treatment: ANNEALED; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Wall Thickness: 0.035 INCHES NOMINAL IN. 9 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.