The Collar,shaft, cataloged under National Stock Number 3040-00-529-9998, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-529-9998 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Internal Keyway Width | 0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Largest Diameter Length | 0.125 INCHES NOMINAL IN |
| Keyway Spacing in Deg | 180.0 |
| Style Designator | ROUND STEPPED |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4615 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4615 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.375 INCHES NOMINAL IN |
| Keyway Quantity | 2 |
| Distance From Center of Bore to Bottom of Keyway | 0.560 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN |
| Small End Diameter | 1.875 INCHES NOMINAL IN |
| Bore Diameter | 0.8760 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN |
| Material | STEEL COMP 4615 |
| Thickness | 0.500 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 |
| Reference | Meaning |
|---|---|
| 553030 | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 553030 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 553030 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-529-9998 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6675-01-659-2167. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-529-9998: Internal Keyway Width: 0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN; Largest Diameter Length: 0.125 INCHES NOMINAL IN; Keyway Spacing in Deg: 180.0; Style Designator: ROUND STEPPED. 12 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.