The Shaft,shouldered, cataloged under National Stock Number 3040-01-365-2928, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-365-2928 |
| Primary Part Number | 1148122-C |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Step Quantity | 4 |
| First End Diameter | 6.6210 INCHES MINIMUM AND 6.6240 INCHES MAXIMUM IN |
| Second End Diameter | 7.1240 INCHES MINIMUM AND 7.1250 INCHES MAXIMUM IN |
| Largest Step Diameter | 7.5000 INCHES NOMINAL IN |
| Second End Angle Between Keyways | 90.0 DEGREES NOMINAL |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 1.5000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.748 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Second End Keyway Depth | 0.750 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLAT KEYWAYS |
| Material | STEEL COMP 4140 |
| External Keyway Length | 9.000 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 15.500 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 1.5000 INCHES MINIMUM AND 1.5020 INCHES MAXIMUM 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 |
|---|---|
| 1148122-C PRIMARY | Lake Shore Systems, Inc. (USA) |
| 315324 PC 2 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1148122-B | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 1148122-A | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
NSN 3040-01-365-2928 is a Shaft,shouldered, manufactured by Lake Shore Systems, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-365-2928 has 2 manufacturer part numbers on file: 1148122-C (Lake Shore Systems, Inc.), 315324 PC 2 (Lake Shore Systems, Inc.).
Key specifications for 1148122-C: Step Quantity: 4; First End Diameter: 6.6210 INCHES MINIMUM AND 6.6240 INCHES MAXIMUM IN; Second End Diameter: 7.1240 INCHES MINIMUM AND 7.1250 INCHES MAXIMUM IN; Largest Step Diameter: 7.5000 INCHES NOMINAL IN. 16 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.