The Shaft,shouldered, cataloged under National Stock Number 3040-01-408-9995, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-408-9995 |
| Primary Part Number | 2813938-101 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Second End External Thread Length | 0.390 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.3145 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.3145 INCHES NOMINAL IN |
| Second End Diameter | 0.1875 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Material Document and Classification | AMS5643 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE |
| First End Spline Length | 1.140 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2813938-101 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 2813938-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-408-9995 is a Shaft,shouldered, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-408-9995 has 1 manufacturer part number on file: 2813938-101 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 2813938-101: Second End External Thread Length: 0.390 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.3145 INCHES NOMINAL IN; First End Spline Major Diameter: 0.3145 INCHES NOMINAL IN. 11 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.
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.