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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: $254.04
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

$254.04

Min.: 1
Mult.: 1

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

21-033123-563
Amphenol Aerospace
1: $67.64
42In Stock
33Expected 29/09/2026

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

42In Stock

33Expected 29/09/2026

$67.64

$59.73

$57.29

$55.26

View

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 No.
21-033102-041

Mouser Part No
654-21-033102-041

Amphenol Aerospace

Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX

7In Stock

$329.45

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts PIN 20 GA PC TAIL

10-497596-055
Amphenol Aerospace
1: $6.73
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

$6.73

$6.15

$6.04

$5.95

$5.92

Min.: 1
Mult.: 1

Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR

21-033470-001
Amphenol Aerospace
1: $239.87
53In Stock

Mfr. Part No.
21-033470-001

Mouser Part No
654-21-033470-001

Amphenol Aerospace

Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR

Datasheet

53In Stock

$239.87

$214.38

$214.31

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT QUADRAX

21-033471-111
Amphenol Aerospace
1: $344.81
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

$344.81

$313.53

$300.94

Min.: 1
Mult.: 1

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

21-033899-8Q2
Amphenol Aerospace
1: $14.74
138In Stock

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

138In Stock

$14.74

$13.07

$12.57

$11.95

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 22D GA WIRE WRAP 38999

10-407572-075
Amphenol Aerospace
1: $15.25
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

$15.25

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN CONTAC

10-497640-125
Amphenol Aerospace
1: $19.29
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

$19.29

$18.73

$12.50

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 20 GA WIRE WRAP

10-407584-035
Amphenol Aerospace
1: $19.14
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

$19.14

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN

21-033191-071
Amphenol Aerospace
1: $478.34
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

$478.34

View

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 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

$172.82

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts Coax Socket Contact

21-033101-025
Amphenol Aerospace
1: $107.89
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

$107.89

View

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 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

$40.02

$34.80

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT

21-033384-031
Amphenol Aerospace
1: $207.67
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

$207.67

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts PIN 20 GA PC TAIL 38999

10-497596-035
Amphenol Aerospace
1: $9.30
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

$9.30

$8.37

$8.01

$7.56

View

Min.: 1
Mult.: 1

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

21-033102-025
Amphenol Aerospace
1: $85.65
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

$85.65

$77.41

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Contacts Bushing

21-033321-009
Amphenol Aerospace
1: $71.26
85In Stock

Mfr. Part No.
21-033321-009

Mouser Part No
654-21-033321-009

Amphenol Aerospace

Circular MIL Spec Contacts Bushing

Datasheet

85In Stock

$71.26

$63.35

$60.91

$58.88

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts D38999/20WE35SN W/PCB

21-033122-546
Amphenol Aerospace
1: $86.26
16In Stock

Mfr. Part No.
21-033122-546

Mouser Part No
654-21-033122-546

Amphenol Aerospace

Circular MIL Spec Contacts D38999/20WE35SN W/PCB

16In Stock

$86.26

$83.77

$67.34

$64.21

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts SOCKET

21-033121-563
Amphenol Aerospace
1: $67.67
3In Stock

Mfr. Part No.
21-033121-563

Mouser Part No
654-21-033121-563

Amphenol Aerospace

Circular MIL Spec Contacts SOCKET

3In Stock

$67.67

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN 22M P C TAIL

10-407552-055
Amphenol Aerospace
1: $5.25
17,159In Stock
12,100Expected 12/11/2026

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

17,159In Stock

12,100Expected 12/11/2026

$5.25

$4.37

$4.15

$3.94

View

Min.: 1
Mult.: 1

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

21-032904-021
Amphenol Aerospace
1: $359.62
126In Stock
31On Order

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

126In Stock

31On Order

$359.62

$345.24

Min.: 1
Mult.: 1

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

21-032905-021
Amphenol Aerospace
1: $712.03
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

$712.03

Min.: 1
Mult.: 1

Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R

21-033101-023
Amphenol Aerospace
1: $135.83
278In Stock

Mfr. Part No.
21-033101-023

Mouser Part No
654-21-033101-023

Amphenol Aerospace

Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R

Datasheet

278In Stock

$135.83

$126.47

$123.09

$109.08

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PIN COAX SZ 8

21-033102-023
Amphenol Aerospace
1: $97.16
135In Stock

Mfr. Part No.
21-033102-023

Mouser Part No
654-21-033102-023

Amphenol Aerospace

Circular MIL Spec Contacts PIN COAX SZ 8

135In Stock

$97.16

Min.: 1
Mult.: 1