The Tube Assembly,metal, cataloged under National Stock Number 4710-01-425-3813, 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 Walker Power Systems, Inc. Dba Tiernay Turbines. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-425-3813 |
| Primary Part Number | 107918-1 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Walker Power Systems, Inc. Dba Tiernay Turbines |
| Status | ACTIVE |
| Seat Angle in Deg | 33.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 1 SINGLE END |
| Wall Thickness | 0.035 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 0.438 INCHES SINGLE END IN |
| End Connection Style | SWIVEL NUT WITH COMPRESSION SLEEVE SINGLE END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 3B SINGLE END |
| Thread Quantity Per Inch | 20 SINGLE END |
| Material | STEEL TUBING |
| Material | STEEL SINGLE END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END |
| End Connection Spec/std | MIL-MS20819, P/N MS20819-4 AND ANA, AN818, P/N AN818-4 |
| 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 |
|---|---|
| 107918-1 PRIMARY | Walker Power Systems, Inc. Dba Tiernay Turbines (USA) |
| 107918-1 | General Dynamics Robotic Systems Inc Div General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 107884-1 | 5/9 Secondary reference Walker Power Systems, Inc. Dba Tiernay Turbines |
NSN 4710-01-425-3813 is a Tube Assembly,metal, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-425-3813 has 2 manufacturer part numbers on file: 107918-1 (Walker Power Systems, Inc. Dba Tiernay Turbines), 107918-1 (General Dynamics Robotic Systems Inc Div General Dynamics Land Systems Inc.).
Key specifications for 107918-1: Seat Angle in Deg: 33.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 1 SINGLE END; Wall Thickness: 0.035 INCHES NOMINAL IN. 14 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.