The Shaft,shouldered, cataloged under National Stock Number 3040-01-185-3778, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rps-Fl, Inc. Dba Rps 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-185-3778 |
| Primary Part Number | L-2280 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rps-Fl, Inc. Dba Rps Inc |
| Status | ACTIVE |
| Second End External Thread Length | 1.000 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Diameter | 0.8750 INCHES NOMINAL IN |
| Largest Step Diameter | 1.8125 INCHES NOMINAL IN |
| First End External Thread Length | 0.500 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| L-2280 | Rps-Fl, Inc. Dba Rps Inc (USA) |
| Reference | Meaning |
|---|---|
| CA8288-1 | 5/9 Secondary reference U.S. Government activity |
| CA8288-1N1CU | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-185-3778 is a Shaft,shouldered, manufactured by Rps-Fl, Inc. Dba Rps Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-185-3778 has 1 manufacturer part number on file: L-2280 (Rps-Fl, Inc. Dba Rps Inc).
Key specifications for L-2280: Second End External Thread Length: 1.000 INCHES NOMINAL IN; Step Quantity: 9; First End Diameter: 0.5000 INCHES NOMINAL IN; Second End Diameter: 0.8750 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.