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High-Speed Connectors for MIL-DTL-38999

Amphenol Aerospace High-Speed Connectors for MIL-DTL-38999 provide superior electrical performance plus shielding to eliminate interference from outside electrical sources. Amphenol offers an expansive range of contacts that provide high-speed transmission and operate in high-frequency conditions. Amphenol Aerospace High-Speed Connectors are ideal for integrating high-speed and high-frequency contacts.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
Circular MIL Spec Contacts PIN 20 GA PC TAIL 10-497640-015 Amphenol Aerospace 1: $16.087 3.501In Stock	Mfr. Part # 10-497640-015 Mouser Part # 654-10-497640-015	Amphenol Aerospace	Circular MIL Spec Contacts PIN 20 GA PC TAIL	Datasheet	3.501In Stock	$16.087 $13.671 $12.817 $12.202 View $11.621 $10.891 $10.379 $9.878	Min.: 1 Mult.: 1
Circular MIL Spec Contacts QUADRAX PI 21-033470-111 Amphenol Aerospace 1: $289.422 49In Stock	Mfr. Part # 21-033470-111 Mouser Part # 654-21-033470-111	Amphenol Aerospace	Circular MIL Spec Contacts QUADRAX PI Learn More about Amphenol Aerospace quadrax contacts	Datasheet	49In Stock	$289.422	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Pin Contact SZ 4 M39029/48-320 Amphenol Aerospace 1: $118.325 62In Stock 45On Order	Mfr. Part # M39029/48-320 Mouser Part # 654-M39029/48-320	Amphenol Aerospace	Circular MIL Spec Contacts Pin Contact SZ 4		62In Stock 45On Order	$118.325 $111.171 $110.464 $100.279 View $98.000 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999 10-497596-035 Amphenol Aerospace 1: $8.932 165In Stock	Mfr. Part # 10-497596-035 Mouser Part # 654-10-497596-035	Amphenol Aerospace	Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999	Datasheet	165In Stock	$8.932 $7.964 $7.553 $6.801 View $6.665 $6.426	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999 10-407572-075 Amphenol Aerospace 1: $24.039 1In Stock	Mfr. Part # 10-407572-075 Mouser Part # 654-10-407572-075	Amphenol Aerospace	Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999	Datasheet	1In Stock	$24.039 $20.427 $18.775 $18.354 View $18.149 $17.841 $17.670	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 22M P C TAIL 10-407552-085 Amphenol Aerospace 1: $4.580 240In Stock	Mfr. Part # 10-407552-085 Mouser Part # 654-10-407552-085	Amphenol Aerospace	Circular MIL Spec Contacts PIN 22M P C TAIL	Datasheet	240In Stock	$4.580 $4.398 $4.272 $4.158 View $3.486 $3.236 $3.190 $2.939 $2.848	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT QUADRAX 21-033471-111 Amphenol Aerospace 1: $392.788 44In Stock	Mfr. Part # 21-033471-111 Mouser Part # 654-21-033471-111	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT QUADRAX Learn More about Amphenol Aerospace quadrax contacts	Datasheet	44In Stock	$392.788 $357.197 $342.922	Min.: 1 Mult.: 1
Circular MIL Spec Contacts TWINAX CONTACT 21-033908-025 Amphenol Aerospace 1: $242.802 3In Stock	Mfr. Part # 21-033908-025 Mouser Part # 654-21-033908-025	Amphenol Aerospace	Circular MIL Spec Contacts TWINAX CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	3In Stock	$242.802	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts CONTACT 21-033384-031 Amphenol Aerospace 1: $236.593 4In Stock	Mfr. Part # 21-033384-031 Mouser Part # 654-21-033384-031	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	4In Stock	$236.593 View $208.693 $201.207 $199.795 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts PIN 20 GA WIRE WRAP 10-407584-035 Amphenol Aerospace 1: $23.674 8In Stock	Mfr. Part # 10-407584-035 Mouser Part # 654-10-407584-035	Amphenol Aerospace	Circular MIL Spec Contacts PIN 20 GA WIRE WRAP		8In Stock	$23.674 $20.028 $18.821 $18.616 View $16.736 $16.360 $14.936 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts Coax Socket Contact 21-033101-025 Amphenol Aerospace 1: $122.916 6In Stock	Mfr. Part # 21-033101-025 Mouser Part # 654-21-033101-025	Amphenol Aerospace	Circular MIL Spec Contacts Coax Socket Contact Learn More about Amphenol Aerospace quadrax contacts		6In Stock	$122.916 View $113.483 $109.917 $108.208 $105.497 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX PIN CONT 21-033102-025 Amphenol Aerospace 1: $103.310 4In Stock	Mfr. Part # 21-033102-025 Mouser Part # 654-21-033102-025	Amphenol Aerospace	Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX PIN CONT Learn More about Amphenol Aerospace quadrax contacts		4In Stock	$103.310 View $89.764 $87.770 $83.213 $80.775 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN 21-033191-071 Amphenol Aerospace 1: $544.961 3In Stock	Mfr. Part # 21-033191-071 Mouser Part # 654-21-033191-071	Amphenol Aerospace	Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN Learn More about Amphenol Aerospace quadrax contacts	Datasheet	3In Stock	$544.961 View $423.788	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 III 8 PIN QDRAX CON 21-033384-191 Amphenol Aerospace 1: $196.890 1In Stock	Mfr. Part # 21-033384-191 Mouser Part # 654-21-033384-191	Amphenol Aerospace	Circular MIL Spec Contacts 38999 III 8 PIN QDRAX CON Learn More about Amphenol Aerospace quadrax contacts	Datasheet	1In Stock	$196.890 View $169.991 $163.896 $162.677 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Tools, Hardware & Accessories TV 8 QDRAX METAL SEAL PLUG PCB 21-033899-8Q2 Amphenol Aerospace 1: $16.793 23In Stock 105Expected 11/9/2026	Mfr. Part # 21-033899-8Q2 Mouser Part # 654-21-033899-8Q2	Amphenol Aerospace	Circular MIL Spec Tools, Hardware & Accessories TV 8 QDRAX METAL SEAL PLUG PCB Learn More about Amphenol Aerospace quadrax contacts	Datasheet	23In Stock 105Expected 11/9/2026	$16.793 $14.890 $14.321 $13.614 View $12.976 $11.837 $11.074 $9.832	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Bushing 21-033321-009 Amphenol Aerospace 1: $81.185 75In Stock	Mfr. Part # 21-033321-009 Mouser Part # 654-21-033321-009	Amphenol Aerospace	Circular MIL Spec Contacts Bushing Learn More about Amphenol Aerospace quadrax contacts	Datasheet	75In Stock	$81.185 $72.173 $69.393 $67.081 View $63.378 Quote	Min.: 1 Mult.: 1
Standard Circular Connector WALL MNT NIC PINS TVP00RZF-13-53P Amphenol Aerospace 1: $474.201 6In Stock	Mfr. Part # TVP00RZF-13-53P Mouser Part # 654-TVP00RZF-13-53P	Amphenol Aerospace	Standard Circular Connector WALL MNT NIC PINS Learn More about Amphenol Aerospace oval contact system	Datasheet	6In Stock	$474.201 View $403.121 $384.221	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts PIN 22M P C TAIL 10-407552-055 Amphenol Aerospace 1: $6.186 41.217In Stock	Mfr. Part # 10-407552-055 Mouser Part # 654-10-407552-055	Amphenol Aerospace	Circular MIL Spec Contacts PIN 22M P C TAIL	Datasheet	41.217In Stock	$6.186 $5.332 $5.115 $4.751 View $4.443 $4.113 $3.931 $3.372	Min.: 1 Mult.: 1
Fiber Optic Connectors ST Plg NIC SZ 11 Single Cavity CF-594611-01P Amphenol Aerospace 1: $813.728 36In Stock 132Expected 1/14/2027	Mfr. Part # CF-594611-01P Mouser Part # 654-CF-594611-01P	Amphenol Aerospace	Fiber Optic Connectors ST Plg NIC SZ 11 Single Cavity Learn More about Amphenol Aerospace mt fiber ferrules	Datasheet	36In Stock 132Expected 1/14/2027	$813.728 $740.882	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Pin use with Cbl PIC E6A3824 21-032904-021 Amphenol Aerospace 1: $409.706 128In Stock 101On Order	Mfr. Part # 21-032904-021 Mouser Part # 654-21-032904-021	Amphenol Aerospace	Circular MIL Spec Contacts 8P Pin use with Cbl PIC E6A3824 Learn More about Amphenol Aerospace amphenol octonet contacts	Datasheet	128In Stock 101On Order On Order Ship Dates Mfr. #: 21-032904-021 Stock: 128 Can Ship Immediately On Order: 1 Expected 11/16/2026 100 Expected 2/9/2027 Factory Lead-Time: 14 Weeks	$409.706 $393.324	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824 21-032905-021 Amphenol Aerospace 1: $859.868 18In Stock 30Expected 4/21/2027	Mfr. Part # 21-032905-021 Mouser Part # 654-21-032905-021	Amphenol Aerospace	Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824 Learn More about Amphenol Aerospace amphenol octonet contacts	Datasheet	18In Stock 30Expected 4/21/2027	$859.868	Min.: 1 Mult.: 1
Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R 21-033101-023 Amphenol Aerospace 1: $166.949 575In Stock	Mfr. Part # 21-033101-023 Mouser Part # 654-21-033101-023	Amphenol Aerospace	Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R Learn More about Amphenol Aerospace quadrax contacts	Datasheet	575In Stock	$166.949 $156.992 $146.124 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Socket Contact 21-033101-027 Amphenol Aerospace 1: $290.003 73In Stock	Mfr. Part # 21-033101-027 Mouser Part # 654-21-033101-027	Amphenol Aerospace	Circular MIL Spec Contacts Socket Contact Learn More about Amphenol Aerospace quadrax contacts		73In Stock	$290.003 $273.608 $269.986	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX 21-033102-041 Amphenol Aerospace 1: $375.334 7In Stock	Mfr. Part # 21-033102-041 Mouser Part # 654-21-033102-041	Amphenol Aerospace	Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX Learn More about Amphenol Aerospace quadrax contacts		7In Stock	$375.334 View $341.407 $329.160	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts BUSHING 21-033321-005 Amphenol Aerospace 1: $21.475 3.232In Stock	Mfr. Part # 21-033321-005 Mouser Part # 654-21-033321-005	Amphenol Aerospace	Circular MIL Spec Contacts BUSHING Learn More about Amphenol Aerospace quadrax contacts	Datasheet	3.232In Stock	$21.475 $18.342 $17.260 $16.668 View $15.711 $15.255 $15.118 Quote	Min.: 1 Mult.: 1