The Clamp,hub, cataloged under National Stock Number 3040-00-659-5052, 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12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-659-5052 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Plain Hole Diameter | 0.1700 INCHES NOMINAL IN |
| Clamp Securing Hole Style | THREADED |
| Style Designator | ROUND, SINGLE BOLT SECURED |
| Material Document and Classification | QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Counterbore Depth | 0.4520 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES IN |
| Counterbore Diameter | 0.2810 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Bore Diameter | 0.3910 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Thickness | 0.344 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 |
|---|---|
| 182-27-00-02 | 5/9 Secondary reference U.S. Government activity |
| 182-27-00-02 | 3/9 Design control — primary reference Litton Systems Inc Amecom Div |
| 182-27-00-02REV | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3040-00-659-5052 is a Clamp,hub, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5935-00-872-8297. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-659-5052: Plain Hole Diameter: 0.1700 INCHES NOMINAL IN; Clamp Securing Hole Style: THREADED; Style Designator: ROUND, SINGLE BOLT SECURED; Material Document and Classification: QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE. 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.