The Shaft,straight, cataloged under National Stock Number 3040-01-446-2413, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-446-2413 |
| Primary Part Number | 1631647 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc |
| Status | ACTIVE |
| First End Diameter | 0.6250 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| End Similarity | IDENTICAL |
| First End Hole Diameter | 0.1880 INCHES NOMINAL IN |
| Material | STEEL |
| First End Distance From Hole Center to End | 0.4690 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 |
|---|---|
| CMG/237410 | Daimler Truck North America Llc (USA) |
| 1631647 PRIMARY | Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 237410 | 5/9 Secondary reference Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc |
NSN 3040-01-446-2413 is a Shaft,straight, manufactured by Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-446-2413 has 2 manufacturer part numbers on file: CMG/237410 (Daimler Truck North America Llc), 1631647 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc).
1 possible match (shared part number, not a government interchangeability claim): 1005-01-689-6180. Verify interchangeability with system specifications before substitution.
Key specifications for 1631647: First End Diameter: 0.6250 INCHES NOMINAL IN; First End Style: UNTHREADED CROSS DRILLED; Overall Length: 25.2500 INCHES NOMINAL IN; End Similarity: IDENTICAL. 6 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.