| Waytek | 47412 | 0.3095 | 100 | 323 | | Eaton | | 0.3095 @ 100 |
| Waldom | EATON BK/ATC-40 | 0.5 | 1 | 323 | | Eaton | | 0.5 @ 1 |
| iodParts | BK/ATC-40 | 0.55 | 500 | 8000 | | Eaton | | 0.55 @ 500 |
| Onlinecomponents.com | BK/ATC-40 | 0.66 | 1 | 323 | | BUSSMANN / EATON | | 0.66 @ 1 |
 | AI Consolidated | ATC-40-BUSSMANN | 0.78 | 1 | 323 | | Bussmann Eaton Cooper Fuses | 2.77 | 0.78 @ 1 |
 | Galco | BK/ATC-40-BUSS | 0.81 | 500 | 323 | | Bussmann | | 0.81 @ 500 |
 | crescentelectric.com | 553615 | 0.82 | 1 | 323 | | Eaton Bussmann series | | 0.82 @ 1 |
 | Newark | 02B2118 | 0.86 | 1 | 392 | | EATON BUSSMANN | | 0.86 @ 1 |
| Dale-Electric | ATC-40 | 0.89 | 1 | 323 | | Cooper Bussmann | | 0.89 @ 1 |
| Radwell | BKATC40 | 0.94 | 1 | 323 | | BUSSMANN | | 0.94 @ 1 |
| Hotenda | H571750 | 1.0 | 1 | 323 | | Eaton (formerly Cooper Bussmann) | | 1.0 @ 1 |
 | sustainablesupply.com | C1208497 | 1.09 | 1 | 323 | | Eaton | 0.02 | 1.09 @ 1 |
 | Platt.com | 0953173 | 1.18 | 1 | 323 | | Eaton/Bussmann Series | | 1.18 @ 1 |
| Airline Hydraulics | BUSSMANN BK/ATC-40 | 1.22 | 1 | 323 | | Cooper Bussmann | | 1.22 @ 1 |
 | Walker Industrial | ATC-40 | 1.3 | 5 | 323 | 17 | Cooper Bussmann | | 1.3 @ 5 |
 | swatee.com | BK/ATC-40 | 1.31 | 1 | 964 | | Eaton | | 1.31 @ 1 |
| RS Delivers | 852-7358 | 1.464 | 1 | 114 | | Eaton | | 1.464 @ 1 |
 | NEP Electronics | ATC-40 | 1.67 | 3 | 323 | | Bussmann | | 1.67 @ 3 |
| us.rs-online.com | 70149727 | 1.79 | 1 | 613 | | Bussmann by Eaton | | 1.79 @ 1 |
| steinerelectric.com | 346287 | 1.96 | 1 | 323 | | BUSSMANN | | 1.96 @ 1 |
 | Raptor Supplies | AE7WMT | 2.301741 | 1 | 323 | | BUSSMANN | | 2.301741 @ 1 |
 | Carlton Bates Company | 05171273569 | 2.5 | 1 | 323 | | EATON BUSSMANN SERIES | | 2.5 @ 1 |
 | Digi-Key | 1876846 | 3.046 | 5 | 323 | | Eaton - Bussmann Electrical Division | | 3.046 @ 5 |
 | StockWise Auto | BUS-ATC-40 | 3.58 | 1 | 10 | | Bussmann | 2.2 | 3.58 @ 1 |
 | firstchoicemarine.com | BSM-ATC-40 | 3.93 | 1 | 323 | | Bussmann | | 3.93 @ 1 |
 | Zoro | G2819826 | 3.95 | 1 | 1335 | | Eaton Bussmann | 0.02 | 3.95 @ 1 |
| bow.com | 603573 | 3.99 | 1 | 14 | | BUSSMANN | | 3.99 @ 1 |
 | boatersplus.com | NW-0308.1026 | 3.99 | 1 | 323 | | BUSSMANN | 0.05 | 3.99 @ 1 |
 | National Supply Network | 74680604 | 11.6 | 5 | 323 | | Cooper Bussmann | | 11.6 @ 5 |
| unitedoutdoorsupply.com | 0308.1026 | 14.98 | 1 | 323 | | BUSSMANN | | 14.98 @ 1 |
 | turtle.com | BUS BK/ATC-40 | 73.39 | 1 | 323 | | Eaton | | 73.39 @ 1 |
| Graybar | 96050316 | 225.8256 | 5 | 323 | | Bussmann (Eaton) | | 225.8256 @ 5 |
