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Electrical
Circuit breakers for aviation maintenance and overhaul sourcing. Search by manufacturer part number or NSN. Listings are PartsPerk-owned observations for review — not live inventory or airworthiness approval.
262 owned part identities in this path
Follow the maintenance program and the manufacturer’s cycle or inspection limits. Replace on erratic trip, failed test, or damage — not on a category-page rule of thumb.
Lockout/tagout belongs on the work card whenever a circuit must stay open. Note lockout hardware on the RFQ if you need it with the breaker.
Overload, short, and some nuisance thermal conditions. Diagnose the circuit; do not just upsize the breaker from this catalog.
Start with the manufacturer part number from the illustrated parts catalog or maintenance manual. If an NSN is listed, search that next. Confirm finish, dash number, and engine or airframe applicability before opening an RFQ.
PartsPerk catalog pages show PartsPerk-owned observations only. They are not live stock, not certification, and not OEM affiliation. Exact PN/NSN identity is for sourcing review; publication and sellability require separate approval.
262 PartsPerk-owned parts in Circuit breakers
7274-4-1-2 — KLIXON® 7274-4-1/2 Circuit Breaker - 1/2 AMP
Approvals and Conformities NSN 5925-00-121-9847 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-1/2A, 7274-4-.5 Product Attributes Country of Origin United States Size 1/2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7
KLIXON® 7274-4-10 Circuit Breaker - 10 AMP
Approvals and Conformities NSN 5925-00-879-9402 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-10A Product Attributes Country of Origin United States Size 10 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-10 Sche
KLIXON® 7274-4-15 Circuit Breaker - 15 AMP
Approvals and Conformities NSN 5925-01-640-8265 MIL-SPEC# MIL-C-5809 Product Attributes Country of Origin United States Size 15 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-15 Schedule B Code 8536.20.0040 Pa
KLIXON® 7274-4-2 Circuit Breaker - 2 AMP
Approvals and Conformities NSN 5925-00-758-1839 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-2A Product Attributes Country of Origin United States Size 2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-2 Schedul
KLIXON® 7274-4-3 Circuit Breaker - 3 AMP
Approvals and Conformities NSN 5925-00-080-5286 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-3A Product Attributes Country of Origin United States Size 3 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-3 Schedul
KLIXON® 7274-4-4 Circuit Breaker - 4 AMP
Approvals and Conformities NSN 5925-00-103-7918 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-4A Product Attributes Country of Origin United States Size 4 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-4 Schedul
KLIXON® 7274-4-5 Circuit Breaker - 5 AMP
Approvals and Conformities NSN 5925-00-946-7779 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-5A Product Attributes Country of Origin United States Size 5 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-4-5 Schedul
7274-4-7-1-2 — KLIXON® 7274-4-7-1/2 Circuit Breaker - 7-1/2 AMP
Approvals and Conformities NSN 5925-00-935-5287 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-7-1/2A, 7274-4-7.5 Product Attributes Country of Origin United States Size 7-1/2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer
KLIXON® 7274-47-1 Circuit Breaker - 1 AMP
Approvals and Conformities MIL-SPEC# MIL-C-5809 Product Attributes Country of Origin United States Size 1 AMP Shipping Weight 0.05 pounds ECCN EAR99 Color Family White Manufacturer P/N 7274-47-1 Schedule B Code 8536.20.0040 Pack Quantity 1 Color Whit
7274-47-1-2 — KLIXON® 7274-47-1/2 Circuit Breaker - 1/2 AMP
Approvals and Conformities MIL-SPEC# MIL-C-5809 Product Attributes Country of Origin United States Size 1/2 AMP Shipping Weight 0.05 pounds ECCN EAR99 Color Family White Manufacturer P/N 7274-47-1/2 Schedule B Code 8536.20.0040 Pack Quantity 1 Color
KLIXON® 7274-47-2 Circuit Breaker - 2 AMP
Approvals and Conformities MIL-SPEC# MIL-C-5809 Product Attributes Country of Origin United States Size 2 AMP Shipping Weight 0.05 pounds ECCN EAR99 Color Family White Manufacturer P/N 7274-47-2 Schedule B Code 8536.20.0040 Pack Quantity 1 Color Whit
KLIXON® 7274-47-3 Circuit Breaker - 3 AMP
Approvals and Conformities MIL-SPEC# MIL-C-5809 Product Attributes Country of Origin United States Size 3 AMP Shipping Weight 0.05 pounds ECCN EAR99 Color Family White Manufacturer P/N 7274-47-3 Schedule B Code 8536.20.0040 Pack Quantity 1 Color Whit
7274-52--5 — KLIXON® 7274-52-1/2 Circuit Breaker - 1/2 AMP
Approvals and Conformities Alternate PN#s 7274-52-1/2 Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN EAR99 Manufacturer P/N 7274-52-1/2 Schedule B Code 8536.20.0040 Pack Quantity 1 Single--Phase, Non-Compensated,
KLIXON® 7274-55-10 Circuit Breaker - 10 AMP
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7274-55-10 Schedule B Code 8536.20.0040 Pack Quantity 1 Klixon 7274-55-10 Breaker
KLIXON® 7274-55-5 Circuit Breaker - 5 AMP
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7274-55-5 Schedule B Code 8536.20.0040 Pack Quantity 1 Klixon 7274-55-5 Circuit Breaker
KLIXON® 7274-70-3 Circuit Breaker - 3 AMP
Approvals and Conformities NSN 5925-01-478-7357 MIL-SPEC# MIL-C-5809 Alternate PN#s MS26574-3L Product Attributes Country of Origin United States Size 3 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N 7274-70-3 Schedu
KLIXON® 7276-115-8 Circuit Breaker - 8 AMP
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7276-115-8 Schedule B Code 8536.20.0040 Pack Quantity 1 Klixon 7276-115-8 Breaker
KLIXON® 7277-2-1 Circuit Breaker - 1 AMP
Approvals and Conformities NSN 5925-00-929-7716 MIL-SPEC# MS26574-1 Alternate PN#s MS26574-1 Product Attributes Country of Origin United States Size 1 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-1 Schedule B Code 8536.20.0040
7277-2-1-2 — KLIXON® 7277-2-1/2 Circuit Breaker - 1/2 AMP
Approvals and Conformities NSN 5925-01-262-0117 Alternate PN#s 7277-2.5, 1802786-1 Product Attributes Country of Origin United States Size 1/2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-1/2 Schedule B Code 8536.20.0040 Pack
7277-2-1-5 — KLIXON® 7277-2-1-1/2 Circuit Breaker - 1-1/2 AMP
Approvals and Conformities Alternate PN#s 7277-2-1.5 Product Attributes Country of Origin United States Size 1-1/2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-1-1/2 Schedule B Code 8536.20.0040 Pack Quantity 1 Klixon 7277 ser
KLIXON® 7277-2-10 Circuit Breaker - 10 AMP
Approvals and Conformities Alternate PN#s 7277-2-10 Product Attributes Country of Origin United States Size 10 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-10 Schedule B Code 8536.20.0040 Pack Quantity 1 Ship Dimensions 4 x 3
KLIXON® 7277-2-15 Circuit Breaker - 15 AMP
Approvals and Conformities Alternate PN#s 7277-2-15 Product Attributes Country of Origin United States Size 15 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-15 Schedule B Code 8536.20.0040 Pack Quantity 1 Ship Dimensions 2 x 1
KLIXON® 7277-2-2 Circuit Breaker - 2 AMP
Approvals and Conformities Alternate PN#s 7277-2-2 Product Attributes Country of Origin United States Size 2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-2 Schedule B Code 8536.20.0040 Pack Quantity 1 Ship Dimensions 3 x 2 x 1
7277-2-2-1-2 — KLIXON® 7277-2-2-1/2 Circuit Breaker - 2-1/2 AMP
Approvals and Conformities Product Attributes Country of Origin United States Size 2-1/2 AMP Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N 7277-2-2-1-2 Schedule B Code 8536.20.0040 Pack Quantity 1 Klixon 7277-2-2-1/2 Circuit Breaker - 2-1
No. Category pages show PartsPerk-owned observations for sourcing review. Stock, price, trace, and airworthiness stay off the page until a separate publication review.
Yes. Submit quantity, required documents, and need-by date through the sourcing desk. Volume review is human — these pages do not auto-discount.