The Gearshaft,spur, cataloged under National Stock Number 3040-01-421-8150, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lenox Instrument Co., Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-421-8150 |
| Primary Part Number | 3353AS242-1 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lenox Instrument Co., Inc. |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 303 |
| Shaft Largest Diameter | 0.437 INCHES NOMINAL IN |
| Shaft End Size | 0.250 INCHES IN |
| Teeth Quantity | 32 |
| Diametral Pitch | 64 |
| Gear Outside Diameter | 0.531 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 303 |
| Shaft End Type | SQUARE |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3353AS242-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 3353AS242-1 PRIMARY | Lenox Instrument Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3353AS242 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 3040-01-421-8150 is a Gearshaft,spur, manufactured by Lenox Instrument Co., Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-421-8150 has 2 manufacturer part numbers on file: 3353AS242-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 3353AS242-1 (Lenox Instrument Co., Inc.).
Key specifications for 3353AS242-1: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 303; Shaft Largest Diameter: 0.437 INCHES NOMINAL IN; Shaft End Size: 0.250 INCHES IN. 12 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 3040-01-421-8150 has DEMIL Code B. 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.