The Shaft,straight, cataloged under National Stock Number 3040-01-183-0634, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-183-0634 |
| Primary Part Number | 7-217236421 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| Second End Hole Diameter | 0.1930 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN |
| First End Diameter | 0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN |
| Second End Diameter | 0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | MIL-T-8504,304 MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.400 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7-217236421 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-217236421 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 3040-01-183-0634 is a Shaft,straight, manufactured by The Boeing Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-183-0634 has 1 manufacturer part number on file: 7-217236421 (The Boeing Company).
Key specifications for 7-217236421: Surface Finish: 16.0 MICROINCHES; Second End Hole Diameter: 0.1930 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN; First End Diameter: 0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN; Second End Diameter: 0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN. 10 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 3040-01-183-0634 has DEMIL Code Q. 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.