The Tube,metallic, cataloged under National Stock Number 4710-01-274-1807, 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 Haynes International, Inc Div Haynes International. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-274-1807 |
| Primary Part Number | AMS4945 0.500OD 0.035WALL |
| Item Name | Tube,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Haynes International, Inc Div Haynes International |
| Status | ACTIVE |
| Measuring Method and Length | 144.000 INCHES NOMINAL RANDOM IN |
| First End Style | PLAIN |
| Heat Treatment | COLD WORKED AND STRESS RELIEVED |
| Material Document and Classification | MCDONNELL DOUGLAS CORP, 3AL-2.5V MFR REF SINGLE MATERIAL RESPONSE V |
| Diameter | 0.500 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | PLAIN ROUND |
| Wall Thickness | 0.035 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Specification/standard Data | 43999-ST0170LB0017 MANUFACTURERS SPECIFICATION |
| Material | TITANIUM ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 3AL-2.5VTI/0.50 OD/0.035 WALL | Alleima Special Metals Llc (USA) |
| AMS4945 0.500OD 0.035WALL PRIMARY | Haynes International, Inc Div Haynes International (USA) |
| AMS4945 0.500OD 0.035WALL PRIMARY | Alleima Special Metals Llc (USA) |
| Reference | Meaning |
|---|---|
| STO170LB0017 | 5/9 Secondary reference U.S. Government activity |
| 3AL-2.5VTI/0.50 OD/0.035 WALL | 5/9 Secondary reference Westinghouse Electric Corp Specialty Metals Div |
| ST0170LB0017 | 5/9 Secondary reference Ancotech Inc |
| 3AL-2.5VTI/0.50 OD /0.035 WALL | 5/2 Secondary reference U.S. Government activity |
| ST0170LB0017 | 5/9 Secondary reference Alleima Special Metals Llc |
| ST0170LB00170.500OD0.035WALL | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 4710-01-274-1807 is a Tube,metallic, manufactured by Haynes International, Inc Div Haynes International, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-274-1807 has 3 manufacturer part numbers on file: 3AL-2.5VTI/0.50 OD/0.035 WALL (Alleima Special Metals Llc), AMS4945 0.500OD 0.035WALL (Haynes International, Inc Div Haynes International), AMS4945 0.500OD 0.035WALL (Alleima Special Metals Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4710-01-274-1808, 4710-01-274-1809, 4710-01-274-1810. Verify interchangeability with system specifications before substitution.
Key specifications for AMS4945 0.500OD 0.035WALL: Measuring Method and Length: 144.000 INCHES NOMINAL RANDOM IN; First End Style: PLAIN; Heat Treatment: COLD WORKED AND STRESS RELIEVED; Material Document and Classification: MCDONNELL DOUGLAS CORP, 3AL-2.5V MFR REF SINGLE MATERIAL RESPONSE V. 11 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.