The Shaft,shouldered, cataloged under National Stock Number 3040-01-397-5688, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Landoll Company, Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-397-5688 |
| Primary Part Number | 51673 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Landoll Company, Llc |
| Status | ACTIVE |
| End Similarity | NOT IDENTICAL |
| 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 |
|---|---|
| 51673 PRIMARY | Landoll Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10-22-000-028 | D/9 Drawing number reference only Liberty Ventures Inti, Llc |
| 10-21-171-003 | 3/9 Design control — primary reference Liberty Ventures Inti, Llc |
NSN 3040-01-397-5688 is a Shaft,shouldered, manufactured by Landoll Company, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-397-5688 has 1 manufacturer part number on file: 51673 (Landoll Company, Llc).
3 possible matches (shared part number, not a government interchangeability claim): 2520-01-397-5691, 3020-01-398-3342, 3020-01-398-3348. Verify interchangeability with system specifications before substitution.
Key specifications for 51673: End Similarity: NOT IDENTICAL; End Item Identification: 3930-01-378-7497. 1 specification is 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.