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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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Part #

Circular MIL Spec Contacts QUADRAX PI

21-033470-111
Amphenol Aerospace
1: $275.25
65In Stock

Mfr. Part No.
21-033470-111

Mouser Part No
654-21-033470-111

Amphenol Aerospace

Circular MIL Spec Contacts QUADRAX PI

Datasheet

65In Stock

$275.25

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 20 GA PC TAIL

10-497596-055
Amphenol Aerospace
1: $11.21
483In Stock

Mfr. Part No.
10-497596-055

Mouser Part No
654-10-497596-055

Amphenol Aerospace

Circular MIL Spec Contacts PIN 20 GA PC TAIL

Datasheet

483In Stock

$11.21

$10.09

$9.51

$9.26

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts Pin Contact SZ 4

M39029/48-320
Amphenol Aerospace
1: $103.88
73In Stock
45Expected 2026/08/24

Mfr. Part No.
M39029/48-320

Mouser Part No
654-M39029/48-320

Amphenol Aerospace

Circular MIL Spec Contacts Pin Contact SZ 4

73In Stock

45Expected 2026/08/24

$103.88

$97.60

$96.98

$88.04

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX SCKT CON

21-033123-563
Amphenol Aerospace
1: $67.65
42In Stock
33On Order

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

42In Stock

33On Order

$67.65

$59.74

$57.30

$55.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT QUADRAX

21-033471-111
Amphenol Aerospace
1: $344.97
46In Stock

Mfr. Part No.
21-033471-111

Mouser Part No
654-21-033471-111

Amphenol Aerospace

Circular MIL Spec Contacts CONTACT QUADRAX

Datasheet

46In Stock

$344.97

$313.59

$301.00

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999

10-407572-075
Amphenol Aerospace
1: $21.11
1In Stock

Mfr. Part No.
10-407572-075

Mouser Part No
654-10-407572-075

Amphenol Aerospace

Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999

Datasheet

1In Stock

$21.11

$17.93

$16.82

$16.01

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN CONTAC

10-497640-125
Amphenol Aerospace
1: $17.62
54In Stock

Mfr. Part No.
10-497640-125

Mouser Part No
654-10-497640-125

Amphenol Aerospace

Circular MIL Spec Contacts PIN CONTAC

54In Stock

$17.62

$15.27

$14.47

$14.26

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999

10-497596-035
Amphenol Aerospace
1: $11.79
165In Stock

Mfr. Part No.
10-497596-035

Mouser Part No
654-10-497596-035

Amphenol Aerospace

Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999

Datasheet

165In Stock

$11.79

$10.46

$10.05

$9.56

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN

21-033191-071
Amphenol Aerospace
1: $478.42
3In Stock

Mfr. Part No.
21-033191-071

Mouser Part No
654-21-033191-071

Amphenol Aerospace

Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN

Datasheet

3In Stock

$478.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 38999 III 8 PIN QDRAX CON

21-033384-191
Amphenol Aerospace
1: $172.86
1In Stock

Mfr. Part No.
21-033384-191

Mouser Part No
654-21-033384-191

Amphenol Aerospace

Circular MIL Spec Contacts 38999 III 8 PIN QDRAX CON

Datasheet

1In Stock

$172.86

View

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 No.
10-407584-035

Mouser Part No
654-10-407584-035

Amphenol Aerospace

Circular MIL Spec Contacts PIN 20 GA WIRE WRAP

8In Stock

$20.78

$18.01

$17.07

$16.83

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Tools, Hardware & Accessories TV 8 QDRAX METAL SEAL PLUG PCB

21-033899-8Q2
Amphenol Aerospace
1: $14.75
58In Stock
105Expected 2026/10/30

Mfr. Part No.
21-033899-8Q2

Mouser Part No
654-21-033899-8Q2

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories TV 8 QDRAX METAL SEAL PLUG PCB

Datasheet

58In Stock

105Expected 2026/10/30

$14.75

$13.07

$12.57

$11.96

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 38999 I II III CON 12 COAX PIN

21-033122-541
Amphenol Aerospace
1: $40.03
16In Stock

Mfr. Part No.
21-033122-541

Mouser Part No
654-21-033122-541

Amphenol Aerospace

Circular MIL Spec Contacts 38999 I II III CON 12 COAX PIN

16In Stock

$40.03

$34.81

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT

21-033384-031
Amphenol Aerospace
1: $207.71
4In Stock

Mfr. Part No.
21-033384-031

Mouser Part No
654-21-033384-031

Amphenol Aerospace

Circular MIL Spec Contacts CONTACT

Datasheet

4In Stock

$207.71

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts Coax Socket Contact

21-033101-025
Amphenol Aerospace
1: $107.91
6In Stock

Mfr. Part No.
21-033101-025

Mouser Part No
654-21-033101-025

Amphenol Aerospace

Circular MIL Spec Contacts Coax Socket Contact

6In Stock

$107.91

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts Hi Frequency Socket Contact

21-033101-029
Amphenol Aerospace
1: $130.49
1In Stock

Mfr. Part No.
21-033101-029

Mouser Part No
654-21-033101-029

Amphenol Aerospace

Circular MIL Spec Contacts Hi Frequency Socket Contact

1In Stock

$130.49

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX PIN CONT

21-033102-025
Amphenol Aerospace
1: $85.67
19In Stock

Mfr. Part No.
21-033102-025

Mouser Part No
654-21-033102-025

Amphenol Aerospace

Circular MIL Spec Contacts MIL-DTL-38999 SERIES I III COAX PIN CONT

19In Stock

$85.67

$74.85

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts Contact

21-033385-071
Amphenol Aerospace
1: $272.13
9In Stock

Mfr. Part No.
21-033385-071

Mouser Part No
654-21-033385-071

Amphenol Aerospace

Circular MIL Spec Contacts Contact

Datasheet

9In Stock

$272.13

$243.30

$234.57

Min.: 1
Mult.: 1

Circular MIL Spec Contacts Bushing

21-033321-009
Amphenol Aerospace
1: $71.27
83In Stock

Mfr. Part No.
21-033321-009

Mouser Part No
654-21-033321-009

Amphenol Aerospace

Circular MIL Spec Contacts Bushing

Datasheet

83In Stock

$71.27

$63.36

$60.92

$58.89

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts D38999/20WE35SN W/PCB

21-033122-546
Amphenol Aerospace
1: $86.27
15In Stock

Mfr. Part No.
21-033122-546

Mouser Part No
654-21-033122-546

Amphenol Aerospace

Circular MIL Spec Contacts D38999/20WE35SN W/PCB

15In Stock

$86.27

$83.78

$67.35

$64.22

View

Min.: 1
Mult.: 1

Standard Circular Connector WALL MNT NIC PINS

TVP00RZF-13-53P
Amphenol Aerospace
1: $416.31
6In Stock

Mfr. Part No.
TVP00RZF-13-53P

Mouser Part No
654-TVP00RZF-13-53P

Amphenol Aerospace

Standard Circular Connector WALL MNT NIC PINS

Datasheet

6In Stock

$416.31

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts SOCKET

21-033121-563
Amphenol Aerospace
1: $67.69
3In Stock

Mfr. Part No.
21-033121-563

Mouser Part No
654-21-033121-563

Amphenol Aerospace

Circular MIL Spec Contacts SOCKET

3In Stock

$67.69

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 22M P C TAIL

10-407552-055
Amphenol Aerospace
1: $4.04
15,470In Stock
29,247On Order

Mfr. Part No.
10-407552-055

Mouser Part No
654-10-407552-055

Amphenol Aerospace

Circular MIL Spec Contacts PIN 22M P C TAIL

Datasheet

15,470In Stock

29,247On Order

$4.04

$3.66

$3.50

$3.36

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 8P Pin use with Cbl PIC E6A3824

21-032904-021
Amphenol Aerospace
1: $359.68
152In Stock

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

Datasheet

152In Stock

$359.68

$345.31

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824

21-032905-021
Amphenol Aerospace
1: $771.46
64In Stock

Mfr. Part No.
21-032905-021

Mouser Part No
654-21-032905-021

Amphenol Aerospace

Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824

Datasheet

64In Stock

$771.46

Min.: 1
Mult.: 1