The Bell Crank, cataloged under National Stock Number 3040-01-485-7767, 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 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-485-7767 |
| Primary Part Number | 122-5589567 PC 7 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Hole/ball Diameter | 1.439 INCHES MINIMUM AND 1.441 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 1.439 INCHES MINIMUM AND 1.441 INCHES MAXIMUM SECOND END IN |
| Bore Length | 2.250 INCHES NOMINAL IN |
| Style Designator | FLAT, ONE OR MORE HOLES BOTH ARMS |
| Material Document and Classification | MIL-S-22698 GR AH36 MIL SPEC SINGLE MATERIAL RESPONSE |
| Fulcrum Bore Shape | PLAIN |
| Bore Diameter | 2.061 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN |
| Material | STEEL |
| 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 |
|---|---|
| 122-5589566 PC 41 | Naval Sea Systems Command (USA) |
| 122-5589567 PC 7 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5589567 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-485-7767 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-485-7767 has 2 manufacturer part numbers on file: 122-5589566 PC 41 (Naval Sea Systems Command), 122-5589567 PC 7 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-485-7842, 3040-01-493-6477, 3040-01-493-6482. Verify interchangeability with system specifications before substitution.
Key specifications for 122-5589567 PC 7: End Hole/ball Diameter: 1.439 INCHES MINIMUM AND 1.441 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 1.439 INCHES MINIMUM AND 1.441 INCHES MAXIMUM SECOND END IN; Bore Length: 2.250 INCHES NOMINAL IN; Style Designator: FLAT, ONE OR MORE HOLES BOTH ARMS. 8 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.