The Shaft,shouldered, cataloged under National Stock Number 3040-01-301-4439, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-301-4439 |
| Primary Part Number | 3224182L1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 1.1460 INCHES MINIMUM AND 1.1560 INCHES MAXIMUM IN |
| Second End Diameter | 0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.7500 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.8270 INCHES MINIMUM AND 0.8370 INCHES MAXIMUM IN |
| First End Style | CIRCULAR GROOVED |
| Criticality Code Justification | ZZZY |
| Second End Spline Major Diameter | 0.9985 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.7490 INCHES NOMINAL IN |
| Second End Spline Quantity | 6 |
| First End Groove Diameter | 1.1230 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN |
| Second End Style | SPLINED (STRAIGHT) |
| Material | NICKEL ALLOY 400 |
| First End Groove Width | 0.1250 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Second End Spline Length | 2.2500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3224182L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 3224182 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 3040-01-301-4439 is a Shaft,shouldered, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-301-4439 has 1 manufacturer part number on file: 3224182L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 3224182L1: Surface Finish: 32.0 MICROINCHES; Step Quantity: 5; First End Diameter: 1.1460 INCHES MINIMUM AND 1.1560 INCHES MAXIMUM IN; Second End Diameter: 0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN. 19 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 3040-01-301-4439 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.