The Shaft,shouldered, cataloged under National Stock Number 3040-00-757-4513, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-757-4513 |
| Primary Part Number | 64A98C319-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.1875 INCHES NOMINAL IN |
| Largest Step Diameter | 1.250 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.812 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Second End Keyway Width | 0.3125 INCHES NOMINAL IN |
| First End Spline Length | 3.500 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.188 INCHES NOMINAL IN |
| First End Spline Quantity | 16 |
| End Similarity | NOT IDENTICAL |
| Second End Style | INDENTED FLAT KEYWAY |
| First End Spline Minor Diameter | 1.0235 INCHES NOMINAL IN |
| Material | STEEL |
| External Keyway Length | 1.312 INCHES NOMINAL SECOND END IN |
| 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 |
|---|---|
| 64A98C319-1 | Deval Life Cycle Support Llc (USA) |
| 64A98C319-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 3040-00-757-4513 is a Shaft,shouldered, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-757-4513 has 2 manufacturer part numbers on file: 64A98C319-1 (Deval Life Cycle Support Llc), 64A98C319-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 64A98C319-1: Step Quantity: 2; First End Diameter: 1.2500 INCHES NOMINAL IN; First End Spline Major Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.1875 INCHES NOMINAL IN. 16 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 3040-00-757-4513 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.