The Gearshaft,spur, cataloged under National Stock Number 3040-01-192-5644, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-192-5644 |
| Primary Part Number | 12290N |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| 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 |
|---|---|
| 12290N PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| HL-18122 PIECE 44 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 12290N | 5/9 Secondary reference U.S. Government activity |
| HL-18122 PIECE 44 | 5/9 Secondary reference U.S. Government activity |
| 12290N | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| HL-18122 | D/9 Drawing number reference only U.S. Government activity |
| 12290N | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 12290N | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3040-01-192-5644 is a Gearshaft,spur, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-192-5644 has 2 manufacturer part numbers on file: 12290N (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), HL-18122 PIECE 44 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 12290N: Special Features: STEEL,SAE 9310;SHAFT-122MM O/A LG,39.69 MM OD 1ST END,45MM OD 2ND END;GEAR-53.09 MM OD,29.0MM FACE W,1.8 IN. PD,18T,10DP,20 DEG PRESSURE ANGLE MM. 0 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.