The Bell Crank, cataloged under National Stock Number 3040-00-057-9353, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Telemechanics Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-057-9353 |
| Primary Part Number | 181040 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 0.687 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 0.968 INCHES NOMINAL SECOND END IN |
| Bore Length | 0.250 INCHES NOMINAL IN |
| Style Designator | FLAT, SLOTTED FORK BOTH ENDS |
| Bore Diameter | 0.156 INCHES NOMINAL IN |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-00-057-9353 is a Bell Crank, manufactured by Telemechanics Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-057-9353 has 3 manufacturer part numbers on file: 181040 (Lucent Technologies Inc Corporate Headquarters), 181040 (Data Dynamics Ltd), 181040 (Telemechanics Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-416-0948, 6115-01-679-5145. Verify interchangeability with system specifications before substitution.
Key specifications for 181040: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.687 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.968 INCHES NOMINAL SECOND END IN; Bore Length: 0.250 INCHES NOMINAL IN; Style Designator: FLAT, SLOTTED FORK BOTH ENDS. 6 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.