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AT Series Circular Connectors

Amphenol Industrial AT Series Circular Connectors feature Amphenol's AT contact technology and are designed for truck environments and demanding applications found in construction and farm equipment. The molded thermoplastic connectors offer a positive bayonet retention system and are sealed by redundant grommet wire sealing. The square flange design ensures a drop-in replacement to existing panel design while the jam nut design makes for easy installation. The 9-pin black receptacles are in accordance with the interface of the diagnostic connector of J1939/13. Amphenol Industrial AT Series Circular Connectors are RoHS compliant.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Automotive Connectors J1939 PROTECTIVE CAP WITHOUT LANYARD ATC10-RC9 Amphenol Industrial 1: $1.84 2,308In Stock 1,000Expected 2026/10/26	Mfr. Part No. ATC10-RC9 Mouser Part No 654-ATC10-RC9	Amphenol Industrial	Automotive Connectors J1939 PROTECTIVE CAP WITHOUT LANYARD Learn More about Amphenol Industrial at connectors	Datasheet	2,308In Stock 1,000Expected 2026/10/26	$1.84 $1.60 $1.54 $1.44 View $1.17 $1.14 $0.947 $0.939 $0.885	Min.: 1 Mult.: 1
Standard Circular Connector Circ Conn AT series Cb Mt Plg, 5 cont ATC16-5-16SN Amphenol Industrial 1: $6.78 488In Stock 1,000Expected 2026/12/11	Mfr. Part No. ATC16-5-16SN Mouser Part No 654-ATC16-5-16SN	Amphenol Industrial	Standard Circular Connector Circ Conn AT series Cb Mt Plg, 5 cont Learn More about Amphenol Industrial at connectors	Datasheet	488In Stock 1,000Expected 2026/12/11	$6.78 $5.76 $5.40 $5.15 View $4.90 $4.65	Min.: 1 Mult.: 1
Circular MIL Spec Tools, Hardware & Accessories HEX NUT ALHN-19 Amphenol Industrial 1: $1.27 5,663In Stock 4,200On Order	Mfr. Part No. ALHN-19 Mouser Part No 654-ALHN-19	Amphenol Industrial	Circular MIL Spec Tools, Hardware & Accessories HEX NUT Learn More about Amphenol Industrial at connectors	Datasheet	5,663In Stock 4,200On Order On Order Ship Dates Mfr. No: ALHN-19 Stock: 5,663 Can Dispatch Immediately On Order: 2,650 Pending 1,550 Expected 2026/11/02 Factory Lead Time: 8 Weeks	$1.27 $1.13 $1.08 $1.04 View $1.01 $1.00 $0.957 $0.728	Min.: 1 Mult.: 1
Circular MIL Spec Contacts AT Circ Pin,Crimp 16-18AWG NP cont AT0-202-16141 Amphenol Industrial 1: $0.55 337In Stock 1,150On Order	Mfr. Part No. AT0-202-16141 Mouser Part No 654-AT0-202-16141	Amphenol Industrial	Circular MIL Spec Contacts AT Circ Pin,Crimp 16-18AWG NP cont Learn More about Amphenol Industrial at connectors	Datasheet	337In Stock 1,150On Order On Order Ship Dates Mfr. No: AT0-202-16141 Stock: 337 Can Dispatch Immediately On Order: 1,098 Expected 2026/11/02 52 Expected 2026/12/07 Factory Lead Time: 8 Weeks	$0.55 $0.418 $0.402 $0.381 View $0.357 $0.344 $0.314 $0.284 $0.262	Min.: 1 Mult.: 1
Circular MIL Spec Contacts AT Circ Pin,Crimp 16-18AWG GP cont AT0-202-1631 Amphenol Industrial 1: $0.44 420In Stock	Mfr. Part No. AT0-202-1631 Mouser Part No 654-AT0-202-1631	Amphenol Industrial	Circular MIL Spec Contacts AT Circ Pin,Crimp 16-18AWG GP cont Learn More about Amphenol Industrial at connectors	Datasheet	420In Stock	$0.44 $0.372 $0.35 $0.333 View $0.317 $0.297 $0.283 $0.267 $0.252	Min.: 1 Mult.: 1
Circular MIL Spec Contacts AT Circ Sock,Crimp 16-18AWG NP cont AT2-201-16141 Amphenol Industrial 1: $0.88 1,631In Stock	Mfr. Part No. AT2-201-16141 Mouser Part No 654-AT2-201-16141	Amphenol Industrial	Circular MIL Spec Contacts AT Circ Sock,Crimp 16-18AWG NP cont Learn More about Amphenol Industrial at connectors	Datasheet	1,631In Stock	$0.88 $0.745 $0.698 $0.665 View $0.633 $0.593 $0.565 $0.537 $0.504	Min.: 1 Mult.: 1
Circular MIL Spec Contacts AT Circ Sock,Crimp 16-18AWG GP cont AT2-201-1631 Amphenol Industrial 1: $0.88 388In Stock	Mfr. Part No. AT2-201-1631 Mouser Part No 654-AT2-201-1631	Amphenol Industrial	Circular MIL Spec Contacts AT Circ Sock,Crimp 16-18AWG GP cont Learn More about Amphenol Industrial at connectors	Datasheet	388In Stock	$0.88 $0.745 $0.698 $0.665 View $0.633 $0.593 $0.586 $0.537 $0.534	Min.: 1 Mult.: 1
Automotive Connectors J1939 SQUARE FLANGE ATC10-9-1939PN Amphenol Industrial 1: $10.04 976In Stock	Mfr. Part No. ATC10-9-1939PN Mouser Part No 654-ATC10-9-1939PN	Amphenol Industrial	Automotive Connectors J1939 SQUARE FLANGE Learn More about Amphenol Industrial at connectors	Datasheet	976In Stock	$10.04 $8.75 $8.21 $7.90 View $7.49 $6.80 $6.47 $5.76 $5.56	Min.: 1 Mult.: 1
Automotive Connectors J1939 PROTECTIVE CAP WITH LANYARD ATC10-RC9L Amphenol Industrial 1: $2.26 3,551In Stock Factory Special Order	Mfr. Part No. ATC10-RC9L Mouser Part No 654-ATC10-RC9L Factory Special Order	Amphenol Industrial	Automotive Connectors J1939 PROTECTIVE CAP WITH LANYARD Learn More about Amphenol Industrial at connectors	Datasheet	3,551In Stock	$2.26 $2.04 $1.92 $1.85 View $1.77 $1.74 $1.70 $1.69 $1.67	Min.: 1 Mult.: 1
Standard Circular Connector 6 way square flange receptacle ATC10-6PN Amphenol Industrial 1: $12.12 50In Stock Factory Special Order	Mfr. Part No. ATC10-6PN Mouser Part No 654-ATC10-6PN Factory Special Order	Amphenol Industrial	Standard Circular Connector 6 way square flange receptacle Learn More about Amphenol Industrial at connectors	Datasheet	50In Stock	$12.12 $11.43	Min.: 1 Mult.: 1
Automotive Connectors BACKSHELL STRN RLF SML FLNGE J1939 RCPT ASR9-1939 Amphenol Industrial 1: $2.23 52In Stock Factory Special Order	Mfr. Part No. ASR9-1939 Mouser Part No 654-ASR9-1939 Factory Special Order	Amphenol Industrial	Automotive Connectors BACKSHELL STRN RLF SML FLNGE J1939 RCPT Learn More about Amphenol Industrial at connectors	Datasheet	52In Stock	$2.23 $1.90 $1.69 View $1.60 $1.56 $1.47 $1.42 $1.38	Min.: 1 Mult.: 1
Automotive Connectors SML FLNGE J1939 RCPT W/HEX NUT ATC-09-9-1939PN Amphenol Industrial 1: $8.94 990Expected 2027/01/06	Mfr. Part No. ATC-09-9-1939PN Mouser Part No 654-ATC-09-9-1939PN	Amphenol Industrial	Automotive Connectors SML FLNGE J1939 RCPT W/HEX NUT Learn More about Amphenol Industrial at connectors	Datasheet	990Expected 2027/01/06	$8.94 $7.59 $7.11 $6.99 View $6.77 $6.49	Min.: 1 Mult.: 1
Automotive Connectors J1939 JAM NUT ATC17-9-1939PN Amphenol Industrial 1: $7.16 2,090On Order	Mfr. Part No. ATC17-9-1939PN Mouser Part No 654-ATC17-9-1939PN	Amphenol Industrial	Automotive Connectors J1939 JAM NUT Learn More about Amphenol Industrial at connectors	Datasheet	2,090On Order On Order Ship Dates Mfr. No: ATC17-9-1939PN Stock: 0 On Order: 1,770 Expected 2026/11/02 320 Expected 2026/11/09 Factory Lead Time: 8 Weeks	$7.16 $6.48 $6.16 $5.98 View $5.77 $5.49 $5.18 $4.68 $4.64	Min.: 1 Mult.: 1
Standard Circular Connector 6 way plug ATC16-6SN Amphenol Industrial 1: $12.78 49Expected 2026/12/11 Factory Special Order	Mfr. Part No. ATC16-6SN Mouser Part No 654-ATC16-6SN Factory Special Order	Amphenol Industrial	Standard Circular Connector 6 way plug Learn More about Amphenol Industrial at connectors	Datasheet	49Expected 2026/12/11	$12.78 $12.15	Min.: 1 Mult.: 1
Circular MIL Spec Connector Circ Conn J1939 Pn Mt Rcpt, 9 cont ATC10-3-16PN Amphenol Industrial 1,000: $3.11 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. ATC10-3-16PN Mouser Part No 654-ATC10-3-16PN	Amphenol Industrial	Circular MIL Spec Connector Circ Conn J1939 Pn Mt Rcpt, 9 cont Learn More about Amphenol Industrial at connectors		Non-Stocked Lead-Time 8 Weeks	$3.11	Min.: 1,000 Mult.: 100
Circular MIL Spec Connector Circ Conn AT series Pn Mt Rcpt, 5 cont ATC10-5-16PN Amphenol Industrial 1,000: $3.26 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. ATC10-5-16PN Mouser Part No 654-ATC10-5-16PN	Amphenol Industrial	Circular MIL Spec Connector Circ Conn AT series Pn Mt Rcpt, 5 cont Learn More about Amphenol Industrial at connectors		Non-Stocked Lead-Time 8 Weeks	$3.26	Min.: 1,000 Mult.: 100
Automotive Connectors AT SIZE 3 PROTECTIVE CAP WITHOUT LANYARD ATC10-RC3 Amphenol Industrial 1: $1.13 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. ATC10-RC3 Mouser Part No 654-ATC10-RC3	Amphenol Industrial	Automotive Connectors AT SIZE 3 PROTECTIVE CAP WITHOUT LANYARD Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked Lead-Time 8 Weeks	$1.13 $0.964 $0.847 $0.772 View $0.734 $0.708 $0.645 $0.622 $0.60	Min.: 1 Mult.: 1
Automotive Connectors AT SIZE 5 PROTECTIVE CAP WITHOUT LANYARD ATC10-RC5 Amphenol Industrial 1: $1.28 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. ATC10-RC5 Mouser Part No 654-ATC10-RC5	Amphenol Industrial	Automotive Connectors AT SIZE 5 PROTECTIVE CAP WITHOUT LANYARD Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked Lead-Time 8 Weeks	$1.28 $1.08 $0.956 $0.863 View $0.802 $0.763 $0.711 $0.688 $0.665	Min.: 1 Mult.: 1
Standard Circular Connector Circ Conn AT series Cb Mt Plg, 3 cont ATC16-3-16SN Amphenol Industrial 1,000: $4.65 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. ATC16-3-16SN Mouser Part No 654-ATC16-3-16SN	Amphenol Industrial	Standard Circular Connector Circ Conn AT series Cb Mt Plg, 3 cont Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked Lead-Time 8 Weeks	$4.65	Min.: 1,000 Mult.: 100
Automotive Connectors SML FLNGE J1939 RCPT WAVE SPRING AWS9-1939 Amphenol Industrial Non-Stocked Lead-Time 10 Weeks Factory Special Order	Mfr. Part No. AWS9-1939 Mouser Part No 654-AWS9-1939 Factory Special Order	Amphenol Industrial	Automotive Connectors SML FLNGE J1939 RCPT WAVE SPRING Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked Lead-Time 10 Weeks		Request a Quote
Automotive Connectors AT SIZE 3 PROTECTIVE CAP WITH LANYARD ATC10-RC3C Amphenol Industrial Non-Stocked Factory Special Order	Mfr. Part No. ATC10-RC3C Mouser Part No 654-ATC10-RC3C Factory Special Order	Amphenol Industrial	Automotive Connectors AT SIZE 3 PROTECTIVE CAP WITH LANYARD Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked		Request a Quote
Automotive Connectors Cap w/Lanyard SZ 9 Square Flange Recpt ATC10-RC9C Amphenol Industrial Non-Stocked Factory Special Order	Mfr. Part No. ATC10-RC9C Mouser Part No 654-ATC10-RC9C Factory Special Order	Amphenol Industrial	Automotive Connectors Cap w/Lanyard SZ 9 Square Flange Recpt Learn More about Amphenol Industrial at connectors	Datasheet	Non-Stocked		Request a Quote

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