| Allied Electronics | 70149408 | 1 | | 1 | |
| Galco | KTK-1.500 | 1 | | 1 | |
 Digi-Key | 283-3458-ND | 1 | 20 | 1 | 1 @ $29.99, 5 @ $28.56, 10 @ $26.42, 50 @ $22.85, 100 @ $21.42, 250 @ $20.56 |
| 1Source | KTK-1-1/2 | 1 | | 1 | |
| TME | KTK-1-1/2 | 1 | | 1 | |
 Walker Industrial | KTK-1-1-2 | 1 | 3 to 5 Days | 1 | 1 @ $37.80 |
 Platt.com | 0080350 | 1 | 32 | 1 | 1 @ $10.21 |
 Carlton Bates Company | 05171242011 | 1 | | 1 | 1 @ $237.90 |
| Fuses Unlimited | KTK-1-1/2 | 1 | 44 | 1 | |
| FinditParts | 5950468 | 1 | | 1 | |
| swatee.com | KTK-1-1/2 | 1 | 2 | 1 | 1 @ $35.78 |
 Raptor Supplies | AE8QJZ | 1 | | 1 | 1 @ $12.50 |
 AI Consolidated | KTK-1-1-2-BUSSMANN | 1 | -2 | 1 | 1 @ $20.13 |
 AmazonTP | B011NJ3VWK | 1 | | 1 | 1 @ $442.31 |
 AmazonTP | B07S3DDMY3 | 1 | | 1 | 1 @ $48.96 |
| AmazonSC | B01IU7WE7G | 1 | | 1 | 1 @ $10.65 |
 Newark | 63R7749 | 10 | | 10 | 10 @ $34.74, 25 @ $33.80, 50 @ $30.04, 100 @ $28.16 |
| AmazonSC | B0026H8RR8 | 1 | | 1 | |
 bscsource.com | KTK112 | 1 | | 1 | 1 @ $22.39 |
 Newark | 18J5853 | 1 | 10 | 1 | 1 @ $63.52, 5 @ $54.31, 10 @ $39.45, 25 @ $29.44, 50 @ $23.49, 100 @ $19.82 |
 grainger.ca | BUSKTK1-1/2 | 1 | | 1 | 1 @ $37.87 |
| Digi-Key | 1877783 | 1 | 6 | 1 | 1 @ $30.28, 5 @ $28.84, 10 @ $26.68, 50 @ $23.07, 100 @ $21.63, 250 @ $20.56 |
 Onlinecomponents.com | KTK-1-1/2 | 1 | 8 | 1 | 1 @ $32.95, 10 @ $28.03, 100 @ $24.39, 1000 @ $23.77, 10000 @ $23.77 |
| Guardian | KTK-1-1/2 | 1 | | 1 | |
| standardelectricsupply.com | 2275122 | 1 | | 1 | 1 @ $432.00 |
| Widespread | KTK-1-1/2 | 1 | | 1 | |
| RS Delivers | 2509633987 | 1 | | 1 | |
| Crescent Electric Supply Co | 2147962 | 1 | | 1 | |
| Guardian | KTK1-1/2 | 1 | | 1 | |
| Crescent Electric Supply Co | KTK-1-1/2 | 1 | | 1 | |
| us.rs-online.com | 70149408 | 1 | 10 | 1 | 1 @ $54.00, 5 @ $51.30, 10 @ $48.60, 50 @ $40.50 |
 Tedss | 2026001382 | 1 | -2 | 1 | 1 @ $21.86 |
 National Supply Network | 74973934 | 5 | -2 | 5 | 1 @ $33.33 |
 Allfuses | KTK-1-1/2 | 1 | 212 | 1 | 1 @ $8.09 |
 crescentelectric.com | 133503 | 1 | 26 | 1 | 1 @ $55.55 |
| Airline Hydraulics | BUSSMANN KTK-1-1/2 | 1 | | 1 | 1 @ $82.56 |
 Zoro | G2511406 | 1 | 363 | 1 | 1 @ $20.49 |
 simsupply.com | ZO-G2511406 | 1 | 197 | 1 | 1 @ $30.22 |
| Grainger | 6F131 | 1 | | 1 | |
