The Bell Crank, cataloged under National Stock Number 3040-01-279-4658, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Keystone Mfg Co the. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-279-4658 |
| Primary Part Number | 20510540 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Keystone Mfg Co the |
| Status | ACTIVE |
| Bore Length | 1.500 INCHES NOMINAL IN |
| Features Provided | FULCRUM SHAFT |
| Surface Treatment | ZINC AND CHROMATE |
| 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 |
|---|---|
| 20510540 PRIMARY | Keystone Mfg Co the (USA) |
| Reference | Meaning |
|---|---|
| 20510540 | 5/9 Secondary reference Military Trucks & Parts, Inc. |
| 20510540 | 5/9 Secondary reference Harsco Corporation Dba B M Y Wyne Wheled Vehicles Div |
NSN 3040-01-279-4658 is a Bell Crank, manufactured by Keystone Mfg Co the, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-279-4658 has 1 manufacturer part number on file: 20510540 (Keystone Mfg Co the).
Key specifications for 20510540: Bore Length: 1.500 INCHES NOMINAL IN; Features Provided: FULCRUM SHAFT; Surface Treatment: ZINC AND CHROMATE; End Item Identification: 2320-01-230-0307. 3 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.