The Clamp,hub, cataloged under National Stock Number 3040-01-339-1074, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-339-1074 |
| Primary Part Number | 803-5959304-X-6 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Plain Hole Diameter | 1.4060 INCHES NOMINAL IN |
| Clamp Securing Hole Style | THREADED |
| Distance From Bore Centerline to End | 4.380 INCHES NOMINAL IN |
| Nominal Thread Size | 1.375 INCHES IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Bore Diameter | 3.0001 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 3.080 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 |
|---|---|
| 803-5959304-X-6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-5959304-X-6 | 5/2 Secondary reference U.S. Government activity |
| 5959304 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-339-1074 is a Clamp,hub, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-339-1074 has 1 manufacturer part number on file: 803-5959304-X-6 (Naval Sea Systems Command).
Key specifications for 803-5959304-X-6: Plain Hole Diameter: 1.4060 INCHES NOMINAL IN; Clamp Securing Hole Style: THREADED; Overall Length: 13.005 INCHES NOMINAL IN; Overall Width: 7.810 INCHES NOMINAL IN. 8 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.