The Shaft,shouldered, cataloged under National Stock Number 3040-00-007-8121, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 10 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 | 3040-00-007-8121 |
| Primary Part Number | 546-6987-002 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 0.3750 INCHES NOMINAL IN |
| Second End Diameter | 0.3125 INCHES NOMINAL IN |
| Largest Step Diameter | 0.375 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Slot Depth | 0.0938 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.0625 INCHES NOMINAL IN |
| Second End Style | SLOTTED |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 546-6987-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3040-00-007-8121 is a Shaft,shouldered, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-007-8121 has 1 manufacturer part number on file: 546-6987-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 546-6987-002: Step Quantity: 2; First End Diameter: 0.3750 INCHES NOMINAL IN; Second End Diameter: 0.3125 INCHES NOMINAL IN; Largest Step Diameter: 0.375 INCHES NOMINAL IN. 10 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.
NSN 3040-00-007-8121 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.