The Bell Crank, cataloged under National Stock Number 3040-00-840-7984, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-840-7984 |
| Primary Part Number | 170027 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Bore Diameter | 0.251 INCHES NOMINAL IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 0.906 INCHES NOMINAL FIRST END IN |
| Style Designator | FLAT, ONE OR MORE HOLES BOTH ARMS |
| Material | STEEL |
| End Hole/ball Diameter | 0.062 INCHES NOMINAL SECOND END IN |
| FSC Application Data | TELETYPE AND FACSIMILE EQUIPMENT |
| End Hole/ball Diameter | 0.052 INCHES NOMINAL FIRST END IN |
| Surface Treatment | NICKEL |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 0.565 INCHES NOMINAL SECOND END IN |
| Bore Length | 0.042 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3040-00-840-7984 is a Bell Crank, manufactured by Telemechanics Inc, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-840-7984 has 2 cross-referenced part numbers: 170027 (Telemechanics Inc), 170027 (American Telephone and Telegraph Co).
There are 3 known substitutes for 3040-00-840-7984: 4820-00-516-3881, 5340-00-964-0183, 6550-01-181-7032. Verify interchangeability with system specifications before substitution.
Key specifications for 170027: Bore Diameter: 0.251 INCHES NOMINAL IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.906 INCHES NOMINAL FIRST END IN; Special Features: COUNTERSUNK 0.070 IN. DIA BOTH SIDES AA ARM IN; Style Designator: FLAT, ONE OR MORE HOLES BOTH ARMS. 11 total characteristics are documented in the Federal Logistics Information System.