The Clamp,hub, cataloged under National Stock Number 3040-01-295-7630, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-295-7630 |
| Primary Part Number | 717512539-001 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Plain Hole Diameter | 0.1650 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 | 0.5625 INCHES NOMINAL IN |
| Nominal Thread Size | 0.0360 INCHES IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.1250 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Thickness | 0.1560 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 |
|---|---|
| 717512539-001 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| C74 | 5/1 Secondary reference Designatronics Incorporated Div Sterling Instruments Div |
| 717512539 | D/9 Drawing number reference only Lockheed Martin Corporation |
| 717801766 | 7/2 Vendor item drawing reference Lockheed Martin Corporation |
| CG1-20 | 5/9 Secondary reference W. M. Berg, Inc. |
NSN 3040-01-295-7630 is a Clamp,hub, manufactured by Lockheed Martin Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-295-7630 has 1 manufacturer part number on file: 717512539-001 (Lockheed Martin Corporation).
Key specifications for 717512539-001: Plain Hole Diameter: 0.1650 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. 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.