| Onlinecomponents.com | KTK-15 | 1 | | 1 | 1 @ $33.28, 2 @ $31.62, 26 @ $19.46, 51 @ $15.40, 76 @ $15.09 |
 Onlinecomponents.com | BK/KTK-15 | 1 | 54 | 1 | 1 @ $20.61, 10 @ $18.71, 20 @ $17.37, 50 @ $16.21, 100 @ $15.59 |
| Jameco | 1772862 | 1 | | 1 | |
| Allied Electronics | 71419943 | 100 | | 100 | |
| Allied Electronics | 70151229 | 1 | | 1 | |
 NEP Electronics | KTK-15 | 1 | 8 | 1 | 1 @ $36.90, 10 @ $32.20 |
| Waytek | 45283 | 1 | | 1 | |
| RS Online | 8511674 | 1 | | 1 | |
 Walker Industrial | KTK-15 | 10 | 3 to 5 Days | 10 | 1 @ $33.40 |
| Freelance Electronics | KTK-15 | 1 | 3 | 1 | 1 @ $20.08, 3 @ $15.21 |
 Platt.com | 0370743 | 1 | 114 | 1 | 1 @ $30.87 |
 Platt.com | 0956409 | 1 | | 1 | 1 @ $56.11 |
| Fuses Unlimited | KTK-15 | 1 | 501 | 1 | |
| Fuses Unlimited | BK/KTK-15 | 100 | | 100 | |
| Bisco | KTK-15 | 1 | | 1 | |
 MRO Supply | 1376048 | 1 | | 1 | |
 AI Consolidated | KTK-15-BUSSMANN | 1 | -2 | 1 | 1 @ $18.54 |
 Digi-Key | BK/KTK-15-ND | 100 | | 100 | 100 @ $20.91 |
| 1Source | KTK-15 | 1 | | 1 | |
| swatee.com | KTK-15 | 1 | 26 | 1 | 1 @ $32.22 |
| Monarch Electric | 58142 | 1 | | 1 | 1 @ $17.64 |
 Tundra | 381432 | 1 | | 1 | 1 @ $30.69 |
 Carlton Bates Company | 05171242019 | 1 | | 1 | 1 @ $21.91 |
 Raptor Supplies | AE2FJN | 1 | | 1 | 1 @ $13.02 |
 AmazonTP | B07348BVM4 | 1 | | 1 | 1 @ $36.99 |
 AmazonTP | B07RYBGYFZ | 1 | | 1 | 1 @ $50.38 |
 AmazonTP | B005273DV4 | 1 | -2 | 1 | 1 @ $5.99 |
| Newark | 99M4542 | 100 | | 100 | 100 @ $43.78, 250 @ $39.85 |
| iodParts | BK/KTK-15 | 1 | | 1 | |
| AmazonSC | B00OGL3LSW | 1 | | 1 | 1 @ $9.99 |
 Newark | 01P3612 | 1 | | 1 | 1 @ $37.04, 5 @ $35.27 |
 Newark | 63R7755 | 1 | 15 | 1 | 1 @ $56.13, 5 @ $54.72, 10 @ $53.32, 25 @ $50.51, 50 @ $47.70, 100 @ $44.91 |
| Newark | 27AC7186 | 1 | | 1 | |
 French Gerleman | BUSSKTK15 | 1 | 3 | 1 | 1 @ $36.15 |
 Sager Electronics | KTK-15 | 10 | 3010 | 1 | 10 @ $21.11, 100 @ $19.71, 1000 @ $19.71, 10000 @ $19.71 |
 Verical | BK/KTK-15 | 3 | 162 | 1 | 3 @ $30.19, 100 @ $30.19, 1000 @ $30.19, 10000 @ $30.19 |
| Guardian | KTK-15 | 1 | | 1 | |
 Elliott Electric | KTK15 | 1 | Call for Availability | 1 | 1 @ $32.76 |
 kempstoncontrols.co.uk | KTK-15 | 1 | 118 | 1 | 1 @ $23.04 |
 NRI Industrial | B478080 | 1 | | 1 | 1 @ $27.48 |
| standardelectricsupply.com | 8078 | 1 | | 1 | 1 @ $267.20 |
 Kelly Hayes | KTK-15 | 1 | 10 | 1 | 1 @ $16.51 |
 bakedeco.com | 38-1432 | 1 | -2 | 1 | 1 @ $48.90 |
 turtle.com | BUS KTK-15 | 1 | | 1 | |
 Radwell | KTK-15 | 1 | 13 | 1 | 1 @ $40.02 |
| Airline Hydraulics | 2091607 | 1 | | 1 | |
 steinerelectric.com | 5020 | 1 | | 1 | 1 @ $26.97 |
| Newark | 39AJ9897 | 1 | | 1 | 1 @ $36.31, 5 @ $34.58 |
| Widespread | KTK-15 | 1 | | 1 | |
| Hutch and Son | KTK-15 | 1 | | 1 | |
| Crescent Electric Supply Co | 2140072 | 1 | | 1 | |
 ferguson.com | 122382 | 1 | Not available | 1 | 1 @ $20.16 |
| RS Delivers | 851-1674 | 1 | 57 | 1 | 1 @ $33.02, 5 @ $30.72, 25 @ $28.73, 50 @ $26.94, 100 @ $25.40 |
| galesburgelectric.com | KTK-15 | 1 | | 1 | |
 Galco | BK/KTK-15-BUSS | 100 | | 100 | 1 @ $38.72 |
 globalcommercialparts.com | BUS_KTK15 | 1 | 16 | 1 | 1 @ $22.28 |
 Galco | KTK-15-BUSS | 1 | 28 | 1 | 1 @ $17.81 |
| Crescent Electric Supply Co | KTK-15 | 1 | | 1 | |
| us.rs-online.com | 70151229 | 1 | 56 | 1 | 1 @ $50.60, 5 @ $48.19, 10 @ $44.58, 50 @ $38.55, 100 @ $36.14, 200 @ $33.73 |
 Tedss | 2026002345 | 1 | -2 | 1 | 1 @ $36.00 |
 mostelectric.com | KTK-15 | 1 | 14 | 1 | 1 @ $12.00 |
 National Supply Network | 74974007 | 10 | -2 | 10 | 1 @ $30.44 |
 Allfuses | KTK-15 | 1 | 725 | 1 | 1 @ $8.39 |
 mayerelectric.com | BUSKTK15 | 1 | 12 | 1 | 1 @ $0.00 |
 crescentelectric.com | 161693 | 1 | 27 | 1 | 1 @ $38.93 |
 superbreakers.com | KTK-15 | 1 | -2 | 1 | 1 @ $8.25 |
 ace4parts.com | KTK-15 | 1 | | 1 | 1 @ $25.94 |
| Airline Hydraulics | BUSSMANN KTK-15 | 1 | | 1 | 1 @ $57.85 |
 Zoro | G0250853 | 1 | 3255 | 1 | 1 @ $16.29 |
 simsupply.com | ZO-G0250853 | 1 | 797 | 1 | 1 @ $25.26 |
 Component Electronics | 505-402 | 1 | 100 | 1 | 1 @ $50.00, 50 @ $42.50, 100 @ $37.50, 500 @ $35.00, 1000 @ $32.50 |
 NRI Industrial | B433310 | 1 | | 1 | 1 @ $27.48 |
| Grainger | 4XC43 | 1 | | 1 | |
