The Shaft,shouldered, cataloged under National Stock Number 3040-00-499-3977, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Marine Diesel, Inc. Dba Marine Diesel. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-499-3977 |
| Primary Part Number | 499-3977 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Marine Diesel, Inc. Dba Marine Diesel |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Second End External Thread Length | 0.520 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Step Quantity | 4 |
| First End Diameter | 0.1312 INCHES MINIMUM AND 0.1372 INCHES MAXIMUM IN |
| Second End Diameter | 0.1840 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.250 INCHES NOMINAL IN |
| First End External Thread Length | 0.670 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| 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 |
|---|---|
| 499-3977 | Marine Diesel, Inc. Dba Marine Diesel (USA) |
| Reference | Meaning |
|---|---|
| 41001842 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-499-3977 is a Shaft,shouldered, manufactured by Marine Diesel, Inc. Dba Marine Diesel, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-499-3977 has 1 manufacturer part number on file: 499-3977 (Marine Diesel, Inc. Dba Marine Diesel).
Key specifications for 499-3977: Surface Finish: 32.0 MICROINCHES; Second End External Thread Length: 0.520 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN; Step Quantity: 4; First End Diameter: 0.1312 INCHES MINIMUM AND 0.1372 INCHES MAXIMUM IN. 12 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 3040-00-499-3977 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.