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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX 21-033102-041 Amphenol Aerospace 1: $329.51 7In Stock	Mfr. Part No. 21-033102-041 Mouser Part No 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	$329.51 View $299.73 $288.97	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts BUSHING 21-033321-005 Amphenol Aerospace 1: $18.85 2,145In Stock	Mfr. Part No. 21-033321-005 Mouser Part No 654-21-033321-005	Amphenol Aerospace	Circular MIL Spec Contacts BUSHING Learn More about Amphenol Aerospace quadrax contacts	Datasheet	2,145In Stock	$18.85 $16.11 $15.15 $14.63 View $13.79 $13.40 $13.27 $12.97 Quote	Min.: 1 Mult.: 1
RF Connectors / Coaxial Connectors CONTACT 21-033591-001 Amphenol Aerospace 1: $187.60 218In Stock	Mfr. Part No. 21-033591-001 Mouser Part No 654-21-033591-001	Amphenol Aerospace	RF Connectors / Coaxial Connectors CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	218In Stock	$187.60 $169.79 $165.75 $164.40	Min.: 1 Mult.: 1
RF Connectors / Coaxial Connectors COAX CONTACT 21-033592-001 Amphenol Aerospace 1: $142.37 425In Stock 364Expected 2026/10/30	Mfr. Part No. 21-033592-001 Mouser Part No 654-21-033592-001	Amphenol Aerospace	RF Connectors / Coaxial Connectors COAX CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	425In Stock 364Expected 2026/10/30	$142.37 $129.91 $122.53 $118.44 View $116.13 Quote	Min.: 1 Mult.: 1
Fibre Optic Connectors ST Plg NIC SZ 11 Single Cavity CF-594611-01P Amphenol Aerospace 1: $714.38 59In Stock	Mfr. Part No. CF-594611-01P Mouser Part No 654-CF-594611-01P	Amphenol Aerospace	Fibre Optic Connectors ST Plg NIC SZ 11 Single Cavity Learn More about Amphenol Aerospace mt fiber ferrules	Datasheet	59In Stock	$714.38 $650.43	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 22M P C TAIL 10-407552-015 Amphenol Aerospace 1: $3.85 746In Stock 33,000Expected 2026/12/18	Mfr. Part No. 10-407552-015 Mouser Part No 654-10-407552-015	Amphenol Aerospace	Circular MIL Spec Contacts PIN 22M P C TAIL	Datasheet	746In Stock 33,000Expected 2026/12/18	$3.85 $3.27 $3.06 $2.92 View $2.78 $2.61 $2.48 $2.33 $2.29	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 16P PC Tail Contact 10-497630-055 Amphenol Aerospace 1: $8.40 671In Stock	Mfr. Part No. 10-497630-055 Mouser Part No 654-10-497630-055	Amphenol Aerospace	Circular MIL Spec Contacts 16P PC Tail Contact	Datasheet	671In Stock	$8.40 $7.61 $7.18 $6.91 View $6.65 $5.95 $5.61 $5.59	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 20 GA PC TAIL 10-497640-015 Amphenol Aerospace 1: $14.12 2,912In Stock 593Expected 2026/12/18	Mfr. Part No. 10-497640-015 Mouser Part No 654-10-497640-015	Amphenol Aerospace	Circular MIL Spec Contacts PIN 20 GA PC TAIL	Datasheet	2,912In Stock 593Expected 2026/12/18	$14.12 $12.00 $11.26 $10.71 View $10.20 $9.56 $9.11 $8.68	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 20 GA PC TAIL 10-497640-025 Amphenol Aerospace 1: $8.70 1,886In Stock 2,085Expected 2026/12/01	Mfr. Part No. 10-497640-025 Mouser Part No 654-10-497640-025	Amphenol Aerospace	Circular MIL Spec Contacts PIN 20 GA PC TAIL	Datasheet	1,886In Stock 2,085Expected 2026/12/01	$8.70 $7.40 $6.92 $6.61 View $6.29 $5.90 $5.61 $5.34	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 III PIN 8 QUADRAX CONTAC 21-033384-021 Amphenol Aerospace 1: $321.60 42In Stock	Mfr. Part No. 21-033384-021 Mouser Part No 654-21-033384-021	Amphenol Aerospace	Circular MIL Spec Contacts 38999 III PIN 8 QUADRAX CONTAC Learn More about Amphenol Aerospace quadrax contacts	Datasheet	42In Stock	$321.60 $289.88 $279.49	Min.: 1 Mult.: 1
Circular MIL Spec Contacts SIZE 12 PIN -SHIELDED 21-033651-011 Amphenol Aerospace 1: $107.34 125In Stock	Mfr. Part No. 21-033651-011 Mouser Part No 654-21-033651-011	Amphenol Aerospace	Circular MIL Spec Contacts SIZE 12 PIN -SHIELDED Learn More about Amphenol Aerospace quadrax contacts		125In Stock	$107.34 $101.15 $97.26 $94.01 View $85.25 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Pin use with Cbl PIC E6A3824 21-032904-021 Amphenol Aerospace 1: $359.68 24In Stock 132Expected 2026/12/07	Mfr. Part No. 21-032904-021 Mouser Part No 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	24In Stock 132Expected 2026/12/07	$359.68 $345.31	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Socket use W/ Cbl GORE RCN8966-24 21-032905-011 Amphenol Aerospace 1: $742.66 7In Stock	Mfr. Part No. 21-032905-011 Mouser Part No 654-21-032905-011	Amphenol Aerospace	Circular MIL Spec Contacts 8P Socket use W/ Cbl GORE RCN8966-24 Learn More about Amphenol Aerospace amphenol octonet contacts	Datasheet	7In Stock	$742.66	Min.: 1 Mult.: 1
Circular MIL Spec Contacts COAX CONTACT 21-033102-024 Amphenol Aerospace 1: $210.44 80In Stock	Mfr. Part No. 21-033102-024 Mouser Part No 654-21-033102-024	Amphenol Aerospace	Circular MIL Spec Contacts COAX CONTACT Learn More about Amphenol Aerospace quadrax contacts		80In Stock	$210.44 $171.00 $143.99 $115.14	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 I II III CON 16 PIN COAX 21-033122-563 Amphenol Aerospace 1: $43.31 317In Stock	Mfr. Part No. 21-033122-563 Mouser Part No 654-21-033122-563	Amphenol Aerospace	Circular MIL Spec Contacts 38999 I II III CON 16 PIN COAX Learn More about Amphenol Aerospace quadrax contacts		317In Stock	$43.31 $42.88 $42.45 $42.03 $40.33	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts QUADRAX CONTACT 21-033385-021 Amphenol Aerospace 1: $240.58 16In Stock	Mfr. Part No. 21-033385-021 Mouser Part No 654-21-033385-021	Amphenol Aerospace	Circular MIL Spec Contacts QUADRAX CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	16In Stock	$240.58 $208.22 View $197.93 $192.73	Min.: 1 Mult.: 1
Circular MIL Spec Contacts MiniatureCylindrical Connector 21-033388-021 Amphenol Aerospace 1: $196.12 16In Stock	Mfr. Part No. 21-033388-021 Mouser Part No 654-21-033388-021	Amphenol Aerospace	Circular MIL Spec Contacts MiniatureCylindrical Connector Learn More about Amphenol Aerospace amphenolhd38999	Datasheet	16In Stock	$196.12 $191.69 View $186.45 $183.59	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT QUADRAX 21-033470-151 Amphenol Aerospace 1: $225.62 22In Stock	Mfr. Part No. 21-033470-151 Mouser Part No 654-21-033470-151	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT QUADRAX Learn More about Amphenol Aerospace quadrax contacts	Datasheet	22In Stock	$225.62 $214.54	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT, SKT -QUADRAX 21-033471-151 Amphenol Aerospace 1: $541.99 17In Stock 10Expected 2026/12/14	Mfr. Part No. 21-033471-151 Mouser Part No 654-21-033471-151	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT, SKT -QUADRAX Learn More about Amphenol Aerospace quadrax contacts	Datasheet	17In Stock 10Expected 2026/12/14	$541.99 $518.67 $509.79	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT 21-033650-031 Amphenol Aerospace 1: $162.44 76In Stock	Mfr. Part No. 21-033650-031 Mouser Part No 654-21-033650-031	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT Learn More about Amphenol Aerospace quadrax contacts		76In Stock	$162.44 $149.20	Min.: 1 Mult.: 1	No
RF Connectors / Coaxial Connectors Coaxial,12Pin,2.1 GHz,V73263 21-033651-031 Amphenol Aerospace Shipping Restricted	Mfr. Part No. 21-033651-031 Mouser Part No 654-21-033651-031	Amphenol Aerospace	RF Connectors / Coaxial Connectors Coaxial,12Pin,2.1 GHz,V73263 Learn More about Amphenol Aerospace quadrax contacts	Datasheet			Shipping Restricted
Circular MIL Spec Tools, Hardware & Accessories Sealing Plug Quadrax 21-033899-8Q1 Amphenol Aerospace 1: $32.01 262In Stock	Mfr. Part No. 21-033899-8Q1 Mouser Part No 654-21-033899-8Q1	Amphenol Aerospace	Circular MIL Spec Tools, Hardware & Accessories Sealing Plug Quadrax Learn More about Amphenol Aerospace quadrax contacts	Datasheet	262In Stock	$32.01 $25.16 $20.71 $17.61 View $16.00 $13.06	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 21-033650-030 21-033650-030 Amphenol Aerospace 1: $124.86 22In Stock	Mfr. Part No. 21-033650-030 Mouser Part No 654-21033650030	Amphenol Aerospace	Circular MIL Spec Contacts 21-033650-030 Learn More about Amphenol Aerospace quadrax contacts	Datasheet	22In Stock	$124.86 $112.24	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 21-033651-030 21-033651-030 Amphenol Aerospace 1: $124.17 68In Stock	Mfr. Part No. 21-033651-030 Mouser Part No 654-21033651030	Amphenol Aerospace	Circular MIL Spec Contacts 21-033651-030 Learn More about Amphenol Aerospace quadrax contacts	Datasheet	68In Stock	$124.17	Min.: 1 Mult.: 1
Fibre Optic Connectors MT Female Contact Kit CF-198137-000 Amphenol Aerospace 1: $288.73 10In Stock	Mfr. Part No. CF-198137-000 Mouser Part No 654-CF-198137-000	Amphenol Aerospace	Fibre Optic Connectors MT Female Contact Kit Learn More about Amphenol Aerospace mt fiber ferrules	Datasheet	10In Stock	$288.73 $271.57	Min.: 1 Mult.: 1

High-Speed Connectors for MIL-DTL-38999

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