The Spool Piece, cataloged under National Stock Number 4730-01-344-8779, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Spool Piece |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Timken Gears & Services Inc. Div Philadelphia Gear (CAGE 17454); Siemens Energy, Inc. (CAGE 16712) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-344-8779 |
| Primary Part Number | 4055G10-2 |
| Item Name | Spool Piece |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4055G10-2 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| PMG-1180C-3-DGR4350P PRIMARY | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| PMG-1180C-3 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| PMG-1180C-3 | 5/9 Secondary reference Siemens Energy, Inc. |
| 4055G10-1 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 4730-01-344-8779 is a Spool Piece, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-344-8779 has 2 manufacturer part numbers on file: 4055G10-2 (Timken Gears & Services Inc. Div Philadelphia Gear), PMG-1180C-3-DGR4350P (Siemens Energy, Inc.).
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.