The Tube Assembly,metal, cataloged under National Stock Number 4710-00-798-8146, 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 General Electric Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4710-00-798-8146 |
| Primary Part Number | 874C345G1 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Material Document and Classification | AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Material Document and Classification | AMS 5639 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5646 ASSN STD 2ND MATERIAL RESPONSE 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 | FLARE SINGLE END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 3B SINGLE END |
| Material | STEEL COMP 30321 TUBING |
| Material | STEEL COMP 304 AND STEEL COMP 347 SINGLE END |
| Thread Series Designator | UNF SINGLE END |
| Connection Special Design | UNION SINGLE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4710-00-798-8146 is a Tube Assembly,metal, manufactured by General Electric Company, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-798-8146 has 2 manufacturer part numbers on file: 874C345G1 (General Electric Company), 874C345G1 (Mtu Aero Engines Ag).
Key specifications for 874C345G1: Seat Angle in Deg: 37.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Material Document and Classification: AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE TUBING. 15 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.
NSN 4710-00-798-8146 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.