The Shaft Assembly,shouldered, cataloged under National Stock Number 3040-01-496-1364, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-496-1364 |
| Primary Part Number | 581-6985420-A2 |
| Item Name | Shaft Assembly,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Quantity | 40 |
| Document Type | ENGINEERING PARTS LIST |
| Component Document Page Number | 7-5 AND 7-6 AND 7-7 |
| Document Identification | DWG 6985420 REV A SHEET 7-5 AND 9 |
| Supply Items and Quantities | 3040-01-496-1049 SHAFT,STRAIGHT 1 |
| Component Document Origin | INDUSTRIAL |
| Document Source | 53711 |
| 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 |
|---|---|
| 581-6985420-A2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H611-1404 SHEET 9 | D/9 Drawing number reference only U.S. Government activity |
| H611-1404-A2 | 5/2 Secondary reference U.S. Government activity |
| 6985420 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-496-1364 is a Shaft Assembly,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-496-1364 has 1 manufacturer part number on file: 581-6985420-A2 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-496-2231, 5340-01-496-9779. Verify interchangeability with system specifications before substitution.
Key specifications for 581-6985420-A2: Component Quantity: 40; Document Type: ENGINEERING PARTS LIST; Component Document Page Number: 7-5 AND 7-6 AND 7-7; Document Identification: DWG 6985420 REV A SHEET 7-5 AND 9. 7 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 3040-01-496-1364 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.