The Bell Crank, cataloged under National Stock Number 3040-00-483-5550, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-483-5550 |
| Primary Part Number | 8330896 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 1.125 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 2.000 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.265 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.093 INCHES NOMINAL FIRST END IN |
| Surface Treatment | CADMIUM AND ZINC |
| Bore Diameter | 0.440 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 8330896 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 441450 | 5/9 Secondary reference Syltone Industries Llc Dba Gardner Denver Inc. Div Emco Wheaton |
| 4930004835550 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| K911 | 5/9 Secondary reference Syltone Industries Llc Dba Gardner Denver Inc. Div Emco Wheaton |
NSN 3040-00-483-5550 is a Bell Crank, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-483-5550 has 1 manufacturer part number on file: 8330896 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-376-2069, 6550-01-494-4773. Verify interchangeability with system specifications before substitution.
Key specifications for 8330896: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.125 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 2.000 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.265 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.093 INCHES NOMINAL FIRST END IN. 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.