The Clamp,hub, cataloged under National Stock Number 3040-00-056-9667, 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12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-056-9667 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Plain Hole Diameter | 0.0890 INCHES NOMINAL IN |
| Balance Type | DYNAMIC |
| Clamp Securing Hole Style | THREADED |
| Style Designator | ROUND SECTIONAL, TWO BOLT SECURED |
| Material Document and Classification | QQ-A-200/3, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| Nominal Thread Size | 0.086 INCHES IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.3130 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Thickness | 0.156 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 |
|---|---|
| 7400037-4 | 5/2 Secondary reference U.S. Government activity |
| CL40-4 | 3/9 Design control — primary reference Vemaline Products Inc Dba Handles Unlimited Div Handles Unlimited |
NSN 3040-00-056-9667 is a Clamp,hub, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-056-9667: Plain Hole Diameter: 0.0890 INCHES NOMINAL IN; Balance Type: DYNAMIC; Clamp Securing Hole Style: THREADED; Style Designator: ROUND SECTIONAL, TWO BOLT SECURED. 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.