The Shaft,straight, cataloged under National Stock Number 3040-00-897-4143, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-897-4143 |
| Primary Part Number | D450-16-500 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Surface Finish | 8.0 MICROINCHES |
| First End Diameter | 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN |
| Second End Diameter | 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN |
| Second End Distance From Keyway Center to End | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.0300 INCHES MINIMUM AND 0.0610 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | WOODRUFF KEYWAY |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| D450-16-500 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 3040-00-897-4143 is a Shaft,straight, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-897-4143 has 1 manufacturer part number on file: D450-16-500 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for D450-16-500: Surface Finish: 8.0 MICROINCHES; First End Diameter: 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN; Second End Diameter: 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN; Second End Distance From Keyway Center to End: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 9 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 3040-00-897-4143 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.