The Bell Crank, cataloged under National Stock Number 3040-01-485-8028, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-485-8028 |
| Primary Part Number | 721-7286699-A8 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.000 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 8.000 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SECOND END IN |
| Bore Length | 1.281 INCHES NOMINAL IN |
| Style Designator | CLEVIS ENDS |
| Material Document and Classification | ASTM B265 GR3 ASSN STD SINGLE MATERIAL RESPONSE |
| Features Provided | BEARING AND COUNTERBORE |
| Fulcrum Bore Shape | PLAIN |
| Surface Treatment | PAINT |
| Bore Diameter | 1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN |
| Material | TITANIUM |
| 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 |
|---|---|
| 721-7286699-A8 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H861-1506-A8 | 5/2 Secondary reference U.S. Government activity |
| 7286699 | D/9 Drawing number reference only Naval Sea Systems Command |
| H861-1506 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-485-8028 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-485-8028 has 1 manufacturer part number on file: 721-7286699-A8 (Naval Sea Systems Command).
Key specifications for 721-7286699-A8: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.000 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 8.000 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SECOND END IN. 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.