The Shaft,shouldered, cataloged under National Stock Number 3040-01-168-3431, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Kelly Manufacturing Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Kelly Manufacturing Company (CAGE 08AF1) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-168-3431 |
| Primary Part Number | 519-0018-01 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Kelly Manufacturing Company |
| Status | ACTIVE |
| 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 |
|---|---|
| 519-0018-01 PRIMARY | Kelly Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| 519-0018-01 | 5/9 Secondary reference Allen R C Instruments Inc |
| 519-0018 | D/9 Drawing number reference only Allen R C Instruments Inc |
NSN 3040-01-168-3431 is a Shaft,shouldered, manufactured by Kelly Manufacturing Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-168-3431 has 1 manufacturer part number on file: 519-0018-01 (Kelly Manufacturing Company).
1 possible match (shared part number, not a government interchangeability claim): 4130-01-355-1190. Verify interchangeability with system specifications before substitution.
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 3040-01-168-3431 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.