The Collar,shaft, cataloged under National Stock Number 3040-01-497-4478, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-497-4478 |
| Primary Part Number | 566-7067168-20 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Distance From Center of Bore to Top of Key | 2.7675 INCHES NOMINAL IN |
| Surface Finish | 16 MICROINCHES INSIDE PERIPHERY |
| Internal Straight Key Width | 0.600 INCHES NOMINAL IN |
| Largest Diameter Length | 2.808 INCHES NOMINAL IN |
| Style Designator | ROUND W/DOUBLE CHAMFER |
| Material Document and Classification | QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 5.875 INCHES NOMINAL IN |
| Key Quantity | 4 |
| Key Spacing in Deg | 90.0 |
| Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 3.5000 INCHES NOMINAL IN |
| Material | NICKEL ALLOY K-500 |
| Thickness | 3.188 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 |
|---|---|
| 566-7067168-20 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H625-0306-20 | 5/2 Secondary reference U.S. Government activity |
| 7067168 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-497-4478 is a Collar,shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-497-4478 has 1 manufacturer part number on file: 566-7067168-20 (Naval Sea Systems Command).
5 possible matches (shared part number, not a government interchangeability claim): 5340-01-497-5840, 5340-01-497-5844, 5340-01-497-6068. Verify interchangeability with system specifications before substitution.
Key specifications for 566-7067168-20: Distance From Center of Bore to Top of Key: 2.7675 INCHES NOMINAL IN; Surface Finish: 16 MICROINCHES INSIDE PERIPHERY; Internal Straight Key Width: 0.600 INCHES NOMINAL IN; Largest Diameter Length: 2.808 INCHES NOMINAL IN. 13 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.