The Shaft,shouldered, cataloged under National Stock Number 3040-00-167-8245, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-167-8245 |
| Primary Part Number | 4413P |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Second End External Thread Length | 0.953 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 0.6250 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.625 INCHES NOMINAL IN |
| Second End Diameter | 0.7500 INCHES NOMINAL IN |
| Largest Step Diameter | 2.000 INCHES NOMINAL IN |
| First End External Thread Length | 0.500 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 2.323 INCHES NOMINAL IN |
| First End Style | EXTERNALLY THREADED AND INDENTED FLAT KEYWAY |
| Second End Keyway Width | 0.1875 INCHES NOMINAL IN |
| First End Keyway Depth | 0.156 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.937 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND INDENTED FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 0.875 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 1.000 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.2500 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 |
|---|---|
| SL4274PC31 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 4413P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| SL4272PC31 | 5/9 Secondary reference U.S. Government activity |
| SL4274PC31 | 5/9 Secondary reference U.S. Government activity |
| 4413P | 3/9 Design control — primary reference U.S. Government activity |
| SL4274 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-00-167-8245 is a Shaft,shouldered, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-167-8245 has 2 manufacturer part numbers on file: SL4274PC31 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 4413P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
1 possible match (shared part number, not a government interchangeability claim): 4320-00-168-0605. Verify interchangeability with system specifications before substitution.
Key specifications for 4413P: Second End External Thread Length: 0.953 INCHES NOMINAL IN; Step Quantity: 9; First End Diameter: 0.6250 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.625 INCHES NOMINAL IN. 18 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.