The Hub,body, cataloged under National Stock Number 3040-01-047-1840, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-047-1840 |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Hub Outside Diameter | 3.248 INCHES NOMINAL IN |
| Shoulder Width | 0.500 INCHES NOMINAL IN |
| Hub Inside Diameter | 1.031 INCHES NOMINAL IN |
| Style Designator | DOUBLE HUB, SPLIT AND SOLID |
| Distance From First End Hub to Shoulder | 2.669 INCHES NOMINAL IN |
| Material | STEEL |
| Distance From Second End Hub to Shoulder | 0.375 INCHES NOMINAL IN |
| Shoulder Outside Diameter | 5.000 INCHES NOMINAL IN |
| First End Hub Outside Diameter | 1.750 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 |
|---|---|
| 2580187 | 5/2 Secondary reference U.S. Government activity |
| 2580187 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2580187 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2580187 | 3/9 Design control — primary reference Ball a C Co |
NSN 3040-01-047-1840 is a Hub,body, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-278-1916. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-047-1840: Second End Hub Outside Diameter: 3.248 INCHES NOMINAL IN; Shoulder Width: 0.500 INCHES NOMINAL IN; Hub Inside Diameter: 1.031 INCHES NOMINAL IN; Style Designator: DOUBLE HUB, SPLIT AND SOLID. 9 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.