The Bell Crank, cataloged under National Stock Number 3040-00-070-6957, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sierra Scientific Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-070-6957 |
| Primary Part Number | C230133 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sierra Scientific Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| C230133 PRIMARY | Sierra Scientific Corp (USA) |
| LB2002 PRIMARY | Federal Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| C230135 | C/1 Advisory reference — outside the item-of-supply concept Sierra Scientific Corp |
| LK2678M79A1 | 5/9 Secondary reference U.S. Government activity |
| LK2678M79PC1 | 5/9 Secondary reference U.S. Government activity |
| LK2678M79A1 | 5/9 Secondary reference Fmc Corp Link-Belt Div |
NSN 3040-00-070-6957 is a Bell Crank, manufactured by Sierra Scientific Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-070-6957 has 2 manufacturer part numbers on file: C230133 (Sierra Scientific Corp), LB2002 (Federal Equipment Co).
1 possible match (shared part number, not a government interchangeability claim): 3040-00-070-6962. Verify interchangeability with system specifications before substitution.
Key specifications for C230133: End Item Identification: MARS CLASS AFS, WEAPONS SYSTEMS CODE JZN. 0 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.