The Shaft,shouldered, cataloged under National Stock Number 3040-00-155-4828, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sterling Engine Co Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-155-4828 |
| Primary Part Number | P11312 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sterling Engine Co Inc |
| Status | ACTIVE |
| Second End External Thread Length | 0.750 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 1.8680 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.563 INCHES NOMINAL IN |
| Second End Diameter | 1.8680 INCHES NOMINAL IN |
| Largest Step Diameter | 1.868 INCHES NOMINAL IN |
| First End Style | WOODRUFF KEYWAY |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL |
| 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 |
|---|---|
| P11312 PRIMARY | Sterling Engine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| NP11297PC1 | 5/9 Secondary reference Cooper Machinery Services Llc |
| P11312 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
| P11312 | 5/9 Secondary reference Cooper Machinery Services Llc |
| NP11297PC1 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
NSN 3040-00-155-4828 is a Shaft,shouldered, manufactured by Sterling Engine Co Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-155-4828 has 1 manufacturer part number on file: P11312 (Sterling Engine Co Inc).
Key specifications for P11312: Second End External Thread Length: 0.750 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 1.8680 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.563 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.