The Bell Crank, cataloged under National Stock Number 1680-00-072-8878, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Alamo Aircraft, Ltd.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-072-8878 |
| Primary Part Number | 7-40809-1 |
| Item Name | Bell Crank |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Alamo Aircraft, Ltd. |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 3.000 INCHES NOMINAL SECOND END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 3.000 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 0.1895 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 0.193 INCHES NOMINAL SECOND END IN |
| Bore Length | 0.690 INCHES NOMINAL IN |
| Style Designator | FLAT, ONE OR MORE HOLES BOTH ARMS |
| Counterbore Depth | 0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.645 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN |
| Bore Diameter | 0.6238 INCHES MINIMUM AND 0.6243 INCHES MAXIMUM IN |
| Material | MAGNESIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7-40809-1 PRIMARY | Alamo Aircraft, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| 7-40809-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 1680-00-072-8878 is a Bell Crank, manufactured by Alamo Aircraft, Ltd., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-072-8878 has 1 manufacturer part number on file: 7-40809-1 (Alamo Aircraft, Ltd.).
Key specifications for 7-40809-1: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 3.000 INCHES NOMINAL SECOND END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 3.000 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 0.1895 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 0.193 INCHES NOMINAL SECOND END IN. 10 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.
NSN 1680-00-072-8878 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.