The Tube Assembly,metal, cataloged under National Stock Number 4710-00-256-2452, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-256-2452 |
| Primary Part Number | 2H8194 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Bolt Hole Diameter | 0.406 INCHES NOMINAL SINGLE END IN |
| Wall Thickness | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 1.062 INCHES SINGLE END IN |
| Tube Outside Diameter | 1.750 INCHES NOMINAL IN |
| Seat Radius | 0.120 INCHES NOMINAL SINGLE END IN |
| Bolt Hole Quantity | 2 SINGLE END |
| Bolt Circle Diameter | 3.000 INCHES NOMINAL SINGLE END IN |
| Thread Class | 2B SINGLE END |
| Material | IRON SINGLE END |
| Material | IRON TUBING |
| Thread Series Designator | UN SINGLE END |
| 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 |
|---|---|
| 2H8194 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4710-00-256-2452 is a Tube Assembly,metal, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-256-2452 has 1 manufacturer part number on file: 2H8194 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2H8194: Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Bolt Hole Diameter: 0.406 INCHES NOMINAL SINGLE END IN; Wall Thickness: 0.250 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.