The Tube,metallic, cataloged under National Stock Number 4710-01-209-6694, 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 Alleima Special Metals Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 4710-01-209-6694 |
| Primary Part Number | AMS4945 1.250OD 0.045WALL |
| Item Name | Tube,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Alleima Special Metals Llc |
| Status | ACTIVE |
| Measuring Method and Length | 140.000 INCHES MINIMUM RANDOM AND 144.000 INCHES MAXIMUM RANDOM IN |
| First End Style | PLAIN |
| Material Document and Classification | MCDONNELL DOUGLAS CORP, 3AL-2.5V MFR REF SINGLE MATERIAL RESPONSE V |
| Diameter | 1.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | PLAIN ROUND |
| Wall Thickness | 0.045 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| 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 |
|---|---|
| AMS4945 1.250OD 0.045WALL PRIMARY | Alleima Special Metals Llc (USA) |
| ST017OLB00171.2500D0.045WALL PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| AMS4945 1.250OD 0.045WALL PRIMARY | Haynes International, Inc Div Haynes International (USA) |
| ST017OLB0017 1.250 OD 0.045 WALL PRIMARY | Alleima Special Metals Llc (USA) |
| Reference | Meaning |
|---|---|
| ST0170LB0017 | 3/1 Design control — primary reference The Boeing Company Div Legacy Am&m |
| ST017OLB0017 1.250 OD 0.045 WALL | 5/9 Secondary reference Ancotech Inc |
| ST017OLB0017 1.250 OD 0.045 WALL | 3/2 Design control — primary reference U.S. Government activity |
NSN 4710-01-209-6694 is a Tube,metallic, manufactured by Alleima Special Metals Llc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-209-6694 has 4 manufacturer part numbers on file: AMS4945 1.250OD 0.045WALL (Alleima Special Metals Llc), ST017OLB00171.2500D0.045WALL (The Boeing Company Div Legacy Am&m), AMS4945 1.250OD 0.045WALL (Haynes International, Inc Div Haynes International), ST017OLB0017 1.250 OD 0.045 WALL (Alleima Special Metals Llc).
7 possible matches (shared part number, not a government interchangeability claim): 4710-01-210-3501, 4710-01-211-5014, 4710-01-212-0812. Verify interchangeability with system specifications before substitution.
Key specifications for AMS4945 1.250OD 0.045WALL: Measuring Method and Length: 140.000 INCHES MINIMUM RANDOM AND 144.000 INCHES MAXIMUM RANDOM IN; First End Style: PLAIN; Material Document and Classification: MCDONNELL DOUGLAS CORP, 3AL-2.5V MFR REF SINGLE MATERIAL RESPONSE V; Diameter: 1.250 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.