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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 (SGD) 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: $448.05 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	$448.05 View $407.55 $392.93	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts BUSHING 21-033321-005 Amphenol Aerospace 1: $25.64 1,873In Stock 1,363Expected 2/11/2026	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	1,873In Stock 1,363Expected 2/11/2026	$25.64 $21.90 $20.60 $19.90 View $18.75 $18.21 $18.05 Quote	Min.: 1 Mult.: 1
RF Connectors / Coaxial Connectors CONTACT 21-033591-001 Amphenol Aerospace 1: $255.10 206In 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	206In Stock	$255.10 $230.87 $225.38 $220.14 View Quote	Min.: 1 Mult.: 1
RF Connectors / Coaxial Connectors COAX CONTACT 21-033592-001 Amphenol Aerospace 1: $207.40 379In Stock 364Expected 4/11/2026	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	379In Stock 364Expected 4/11/2026	$207.40 $199.09	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 16P PC Tail Contact 10-497630-055 Amphenol Aerospace 1: $11.42 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	$11.42 $10.34 $9.76 $9.40 View $9.04 $8.09 $7.62 $7.60	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 III PIN 8 QUADRAX CONTAC 21-033384-021 Amphenol Aerospace 1: $437.31 39In 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	39In Stock	$437.31 $394.17 $380.04	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Socket use W/ Cbl GORE RCN8966-24 21-032905-011 Amphenol Aerospace 1: $932.20 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	$932.20	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT 21-033101-024 Amphenol Aerospace 1: $332.29 69In Stock	Mfr. Part No. 21-033101-024 Mouser Part No 654-21-033101-024	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT Learn More about Amphenol Aerospace quadrax contacts		69In Stock	$332.29 $314.45 $303.01 $302.50 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN COAX SZ 8 21-033102-023 Amphenol Aerospace 1: $179.45 121In Stock 181Expected 23/11/2026	Mfr. Part No. 21-033102-023 Mouser Part No 654-21-033102-023	Amphenol Aerospace	Circular MIL Spec Contacts PIN COAX SZ 8 Learn More about Amphenol Aerospace quadrax contacts		121In Stock 181Expected 23/11/2026	$179.45 $167.05 $156.94 $154.74 View $151.42 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts COAX CONTACT 21-033102-024 Amphenol Aerospace 1: $286.16 41In 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		41In Stock	$286.16 $232.51 $195.80 View $146.00 $144.53	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 I II III CON 16 PIN COAX 21-033122-563 Amphenol Aerospace 1: $59.05 301In 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		301In Stock	$59.05 $55.91 $53.48 Quote Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX SCKT CON 21-033123-563 Amphenol Aerospace 1: $91.99 137In Stock 189Expected 21/12/2026	Mfr. Part No. 21-033123-563 Mouser Part No 654-21-033123-563	Amphenol Aerospace	Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX SCKT CON Learn More about Amphenol Aerospace quadrax contacts		137In Stock 189Expected 21/12/2026	$91.99 $81.23 $77.91 $75.15 View $70.76 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts QUADRAX CONTACT 21-033385-021 Amphenol Aerospace 1: $327.13 14In 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	14In Stock	$327.13 $283.14 View $269.13 $262.07	Min.: 1 Mult.: 1
Circular MIL Spec Contacts QUADRAX CONTACT PIN 100 OHM 21-033387-021 Amphenol Aerospace 1: $248.10 18In Stock	Mfr. Part No. 21-033387-021 Mouser Part No 654-21-033387-021	Amphenol Aerospace	Circular MIL Spec Contacts QUADRAX CONTACT PIN 100 OHM Learn More about Amphenol Aerospace amphenolhd38999	Datasheet	18In Stock	$248.10 $239.65	Min.: 1 Mult.: 1
Circular MIL Spec Contacts MiniatureCylindrical Connector 21-033388-021 Amphenol Aerospace 1: $282.09 12In Stock 12Expected 4/1/2027	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	12In Stock 12Expected 4/1/2027	$282.09 $274.42 View $257.69	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT QUADRAX 21-033470-151 Amphenol Aerospace 1: $306.79 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	$306.79 $284.58 View $278.92	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT, SKT -QUADRAX 21-033471-151 Amphenol Aerospace 1: $736.98 21In Stock 6Expected 14/12/2026	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	21In Stock 6Expected 14/12/2026	$736.98 $705.27 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT 21-033650-031 Amphenol Aerospace 1: $220.89 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	$220.89 $202.88 $201.23 $197.89 View Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts SIZE 12 PIN -SHIELDED 21-033651-011 Amphenol Aerospace 1: $150.82 41In 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		41In Stock	$150.82 $137.54 $132.25 View $127.83 $120.77 Quote	Min.: 1 Mult.: 1
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 Export outside of USA is prohibited.	Datasheet			Shipping Restricted
Circular MIL Spec Tools, Hardware & Accessories Sealing Plug Quadrax 21-033899-8Q1 Amphenol Aerospace 1: $43.52 258In 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	258In Stock	$43.52 $34.20 $28.17 $23.94 View $21.76 $17.76	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 21-033650-030 21-033650-030 Amphenol Aerospace 1: $169.78 12In 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	12In Stock	$169.78 $152.46 View $145.76 $140.88	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 21-033651-030 21-033651-030 Amphenol Aerospace 1: $155.87 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	$155.87	Min.: 1 Mult.: 1
Fibre Optic Connectors ST Plug SZ 21 Four Cavity CF-599621-04P Amphenol Aerospace 1: $1,219.48 12In Stock 3Expected 25/1/2027	Mfr. Part No. CF-599621-04P Mouser Part No 654-CF-599621-04P	Amphenol Aerospace	Fibre Optic Connectors ST Plug SZ 21 Four Cavity Learn More about Amphenol Aerospace mt fiber ferrules	Datasheet	12In Stock 3Expected 25/1/2027	$1,219.48 $1,142.16	Min.: 1 Mult.: 1	No
Fibre Optic Connectors Straight Plug Pin 13-02 CF-5E4613-02P Amphenol Aerospace 1: $391.29 17In Stock	Mfr. Part No. CF-5E4613-02P Mouser Part No 654-CF59461302P	Amphenol Aerospace	Fibre Optic Connectors Straight Plug Pin 13-02 Learn More about Amphenol Aerospace mt fiber ferrules	Datasheet	17In Stock	$391.29 $387.46 View $387.45	Min.: 1 Mult.: 1