The Clamp,hub, cataloged under National Stock Number 3040-00-730-4916, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Secs Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-730-4916 |
| Primary Part Number | CC50 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Secs Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SOCKET HEAD CAP SCREW |
| Plain Hole Diameter | 0.1530 INCHES MINIMUM AND 0.1590 INCHES MAXIMUM IN |
| Clamp Securing Hole Style | THREADED |
| Style Designator | RECTANGULAR, SINGLE BOLT SECURED |
| Distance From Bore Centerline to End | 0.875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.086 INCHES IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.1590 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Thickness | 0.190 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 |
|---|---|
| CC50 PRIMARY | Secs Inc (USA) |
| Reference | Meaning |
|---|---|
| CC50 | 5/9 Secondary reference Tempo Instrument Inc Defense Electronics Div |
| GC503C1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-730-4916 is a Clamp,hub, manufactured by Secs Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-730-4916 has 1 manufacturer part number on file: CC50 (Secs Inc).
1 possible match (shared part number, not a government interchangeability claim): 5985-00-890-3393. Verify interchangeability with system specifications before substitution.
Key specifications for CC50: Furnished Items and Quantity: 1 SOCKET HEAD CAP SCREW; Plain Hole Diameter: 0.1530 INCHES MINIMUM AND 0.1590 INCHES MAXIMUM IN; Clamp Securing Hole Style: THREADED; Style Designator: RECTANGULAR, SINGLE BOLT SECURED. 11 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.