The Shaft,shouldered, cataloged under National Stock Number 3040-01-171-6720, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-171-6720 |
| Primary Part Number | 13074599 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 0.1872 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN |
| Second End Diameter | 0.1438 INCHES MINIMUM AND 0.1440 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.190 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1440 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0300 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.140 INCHES NOMINAL IN |
| Second End Style | TWO CIRCULAR GROOVES |
| Material | STEEL CORROSION RESISTING |
| Second End Distance Between First and Second Groove Centers | 0.188 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 | N |
| Part Number | Manufacturer |
|---|---|
| 13074599 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13074599 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 3040-01-171-6720 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-171-6720 has 1 manufacturer part number on file: 13074599 (Lockheed Martin Corporation).
Key specifications for 13074599: Surface Finish: 32.0 MICROINCHES; Step Quantity: 5; First End Diameter: 0.1872 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN; Second End Diameter: 0.1438 INCHES MINIMUM AND 0.1440 INCHES MAXIMUM IN. 14 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.