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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 QUADRAX PI 21-033470-111 Amphenol Aerospace 1: $271.05 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	$271.05 $254.04	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Pin Contact SZ 4 M39029/48-320 Amphenol Aerospace 1: $103.86 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	$103.86 $97.58 $96.96 $88.02 View $86.02 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts CONTACT QUADRAX 21-033471-111 Amphenol Aerospace 1: $344.71 46In 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	46In Stock	$344.71 $313.53 $301.51	Min.: 1 Mult.: 1
Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR 21-033470-001 Amphenol Aerospace 1: $274.48 49In Stock	Mfr. Part # 21-033470-001 Mouser Part # 654-21-033470-001	Amphenol Aerospace	Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR Learn More about Amphenol Aerospace quadrax contacts	Datasheet	49In Stock	$274.48 $250.63 $241.64	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999 10-407572-075 Amphenol Aerospace 1: $21.10 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	$21.10 $17.93 $16.31 $16.15	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 22M P C TAIL 10-407552-085 Amphenol Aerospace 1: $3.97 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	$3.97 $3.79 $3.69 $3.57 $2.69	Min.: 1 Mult.: 1
Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999 10-497596-035 Amphenol Aerospace 1: $9.26 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	$9.26 $8.21 $7.81 $7.45 View $6.62 $6.38 $5.99	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Coax Socket Contact 21-033101-025 Amphenol Aerospace 1: $107.89 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	$107.89 View $99.61 $96.48 $94.98 $92.60 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: $90.68 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	$90.68 View $78.79 $77.04 $73.04 $70.90 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts 38999 I II III CON 12 COAX PIN 21-033122-541 Amphenol Aerospace 1: $40.02 16In Stock	Mfr. Part # 21-033122-541 Mouser Part # 654-21-033122-541	Amphenol Aerospace	Circular MIL Spec Contacts 38999 I II III CON 12 COAX PIN Learn More about Amphenol Aerospace quadrax contacts		16In Stock	$40.02 $34.80 View $33.29 $32.22 $31.14 $29.43 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 III 8 PIN QDRAX CON 21-033384-191 Amphenol Aerospace 1: $172.82 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	$172.82 View $149.21 $143.86 $142.79 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: $14.74 53In Stock 105Expected 10/30/2026	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	53In Stock 105Expected 10/30/2026	$14.74 $13.07 $12.57 $11.95 View $11.39 $10.39 $9.72 $8.63	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT 21-033384-031 Amphenol Aerospace 1: $207.67 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	$207.67 View $183.18 $176.61 $175.32 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts PIN 20 GA WIRE WRAP 10-407584-035 Amphenol Aerospace 1: $20.78 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	$20.78 $17.55 $16.85 $14.47 View $14.22 $12.79 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts Bushing 21-033321-009 Amphenol Aerospace 1: $71.26 83In 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	83In Stock	$71.26 $63.35 $60.91 $58.88 View $55.63 Quote	Min.: 1 Mult.: 1
Standard Circular Connector WALL MNT NIC PINS TVP00RZF-13-53P Amphenol Aerospace 1: $416.23 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	$416.23 View $353.84 $337.25	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts PIN 22M P C TAIL 10-407552-055 Amphenol Aerospace 1: $6.06 25,617In Stock 18,000Expected 12/18/2026	Mfr. Part # 10-407552-055 Mouser Part # 654-10-407552-055	Amphenol Aerospace	Circular MIL Spec Contacts PIN 22M P C TAIL	Datasheet	25,617In Stock 18,000Expected 12/18/2026	$6.06 $5.19 $4.89 $4.08 View $3.82 $3.53 $3.38 $2.77 $2.67	Min.: 1 Mult.: 1
Fiber Optic Connectors ST Plg NIC SZ 11 Single Cavity CF-594611-01P Amphenol Aerospace 1: $714.25 58In Stock	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	58In Stock	$714.25 $650.31	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824 21-032905-021 Amphenol Aerospace 1: $712.03 46In Stock	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	46In Stock	$712.03	Min.: 1 Mult.: 1
Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R 21-033101-023 Amphenol Aerospace 1: $146.54 584In Stock 123Expected 10/15/2026	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	584In Stock 123Expected 10/15/2026	$146.54 $137.80 $128.26 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts CONTACT 21-033101-024 Amphenol Aerospace 1: $244.33 96In Stock	Mfr. Part # 21-033101-024 Mouser Part # 654-21-033101-024	Amphenol Aerospace	Circular MIL Spec Contacts CONTACT Learn More about Amphenol Aerospace quadrax contacts		96In Stock	$244.33 $231.21 $222.80 $222.43 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Contacts Socket Contact 21-033101-027 Amphenol Aerospace 1: $254.55 75In 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		75In Stock	$254.55 $240.16 $236.98	Min.: 1 Mult.: 1
Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX 21-033102-041 Amphenol Aerospace 1: $329.45 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	$329.45 View $299.67 $288.92	Min.: 1 Mult.: 1	No
Circular MIL Spec Contacts BUSHING 21-033321-005 Amphenol Aerospace 1: $18.85 2,021In Stock 1,363Expected 1/7/2027	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	2,021In Stock 1,363Expected 1/7/2027	$18.85 $16.10 $15.15 $14.63 View $13.79 $13.39 $13.27 Quote	Min.: 1 Mult.: 1
RF Connectors / Coaxial Connectors CONTACT 21-033591-001 Amphenol Aerospace 1: $187.57 206In Stock	Mfr. Part # 21-033591-001 Mouser Part # 654-21-033591-001	Amphenol Aerospace	RF Connectors / Coaxial Connectors CONTACT Learn More about Amphenol Aerospace quadrax contacts	Datasheet	206In Stock	$187.57 $169.76 $165.72 $161.87 View Quote	Min.: 1 Mult.: 1