The Gearshaft,helical, cataloged under National Stock Number 3040-00-493-1900, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-493-1900 |
| Primary Part Number | 448505 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Helix Angle | 5.0000 DEGREES |
| Teeth Quantity | 14 |
| Tooth Direction | LEFT |
| Teeth Type | SINGLE HELIX |
| Gear Outside Diameter | 0.727 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Shaft Length | 4.025 INCHES NOMINAL IN |
| Shaft End Type | PLAIN |
| Face Width | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| 448505 | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems (USA) |
| Reference | Meaning |
|---|---|
| 163468R1 | 3/2 Design control — primary reference U.S. Government activity |
| 163468R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 3040-00-493-1900 is a Gearshaft,helical, manufactured by Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-493-1900 has 1 manufacturer part number on file: 448505 (Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems).
Key specifications for 448505: Shaft Type: SHOULDERED; Shaft Material: STEEL; Helix Angle: 5.0000 DEGREES; Teeth Quantity: 14. 11 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.