The Bell Crank, cataloged under National Stock Number 3040-01-487-0727, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-487-0727 |
| Primary Part Number | 122-6776881 PC 33 |
| 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 | 9.000 INCHES NOMINAL SECOND END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.250 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 0.766 INCHES NOMINAL ALL ENDS IN |
| Style Designator | FLAT, RAISED FACE PIVOT HOLE, ONE OR MORE HOLES BOTH ARMS |
| Material Document and Classification | QQ-S-763 CL-304, COND-A FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | PAINT |
| Bore Diameter | 1.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 122-6776881 PC 33 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 122-6776881 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-487-0727 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-487-0727 has 1 manufacturer part number on file: 122-6776881 PC 33 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 2040-01-487-1684, 3120-01-487-8272, 3120-01-488-4054. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6776881 PC 33: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 9.000 INCHES NOMINAL SECOND END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.250 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 0.766 INCHES NOMINAL ALL ENDS IN; Style Designator: FLAT, RAISED FACE PIVOT HOLE, 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.