The Shaft,shouldered, cataloged under National Stock Number 3040-00-213-2144, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-213-2144 |
| Primary Part Number | 31658 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Step Quantity | 7 |
| First End Diameter | 0.8745 INCHES NOMINAL IN |
| Second End Diameter | 1.1875 INCHES NOMINAL IN |
| Largest Step Diameter | 1.6875 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 1.1810 INCHES MINIMUM AND 1.1910 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Spline Major Diameter | 1.3390 INCHES MINIMUM AND 1.3440 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 6328 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 18 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL |
| Second End Pitch Diameter | 1.2857 INCHES NOMINAL IN |
| Second End Spline Length | 1.5313 INCHES NOMINAL IN |
| 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 |
|---|---|
| 31658 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 31658 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 3040-00-213-2144 is a Shaft,shouldered, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-213-2144 has 1 manufacturer part number on file: 31658 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 5340-00-244-7326, 5985-00-840-2531, 5950-00-910-2373. Verify interchangeability with system specifications before substitution.
Key specifications for 31658: Step Quantity: 7; First End Diameter: 0.8745 INCHES NOMINAL IN; Second End Diameter: 1.1875 INCHES NOMINAL IN; Largest Step Diameter: 1.6875 INCHES NOMINAL IN. 15 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.