The Shaft,shouldered, cataloged under National Stock Number 3040-01-429-5681, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-429-5681 |
| Primary Part Number | 593-6405216 FIND 38L1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| First End Diameter | 1.0000 INCHES NOMINAL IN |
| Second End Diameter | 1.0000 INCHES NOMINAL IN |
| Second End Step Length | 3.0000 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Criticality Code Justification | ZZZY |
| First End Spline Length | 1.7500 INCHES NOMINAL IN |
| First End Spline Quantity | 10 |
| End Similarity | NOT IDENTICAL |
| Second End Style | SQUARE (ROUND CORNERS) |
| Material | NICKEL ALLOY |
| Second End Width Across Flats | 0.7500 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 593-6405216 FIND 38L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| DF7501-101 FN 38L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211068995L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 6405216 FN 38L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 593-6405216 FIND 38 | 5/1 Secondary reference Naval Sea Systems Command |
| DF7501-101 FN 38 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211068995 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 6405216 FN 38 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 3040-01-429-5681 is a Shaft,shouldered, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-429-5681 has 4 manufacturer part numbers on file: 593-6405216 FIND 38L1 (Naval Inventory Control Point Mechanicsburg), DF7501-101 FN 38L1 (Naval Inventory Control Point Mechanicsburg), 211068995L1 (Naval Inventory Control Point Mechanicsburg), 6405216 FN 38L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 593-6405216 FIND 38L1: First End Diameter: 1.0000 INCHES NOMINAL IN; Second End Diameter: 1.0000 INCHES NOMINAL IN; Second End Step Length: 3.0000 INCHES NOMINAL IN; First End Style: SPLINED (STRAIGHT). 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 3040-01-429-5681 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.