The Shaft,shouldered, cataloged under National Stock Number 3040-01-251-0557, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-251-0557 |
| Primary Part Number | 9377156 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Step Quantity | 5 |
| First End Diameter | 0.4375 INCHES NOMINAL IN |
| Second End Diameter | 0.6300 INCHES NOMINAL IN |
| Largest Step Diameter | 0.630 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.4310 INCHES NOMINAL IN |
| First End External Thread Length | 0.640 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Second End Spline Major Diameter | 0.5420 INCHES NOMINAL IN |
| Second End Groove Diameter | 0.4000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 12 |
| Second End Groove Width | 0.0470 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.380 INCHES NOMINAL IN |
| Second End Style | TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED |
| Material | STEEL CORROSION RESISTING |
| Second End Internal Thread Length | 0.250 INCHES NOMINAL IN |
| Second End Spline Length | 0.380 INCHES NOMINAL IN |
| Second End Distance Between First and Second Groove Centers | 0.378 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 |
|---|---|
| 9377156 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 3040-01-251-0557 is a Shaft,shouldered, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-251-0557 has 1 manufacturer part number on file: 9377156 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 9377156: Step Quantity: 5; First End Diameter: 0.4375 INCHES NOMINAL IN; Second End Diameter: 0.6300 INCHES NOMINAL IN; Largest Step Diameter: 0.630 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.