.hide-partial { max-height: none; } .show-more { display: none; }

High Speed Series Circular Connectors

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circular Connectors

List Images

Results: 2,875

Applied Filters:

Series = High Speed

Product

Contact Gender

Termination Style

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circular MIL Spec Contacts 38999 III 8 SKT COAX HF CONTAC

21-033449-03HF
Amphenol Aerospace
1: €270.19
90In Stock

Mfr. Part No.
21-033449-03HF

Mouser Part No
654-2103344903HF

Amphenol Aerospace

Circular MIL Spec Contacts 38999 III 8 SKT COAX HF CONTAC

Datasheet

90In Stock

€270.19

€245.77

€236.96

Min.: 1
Mult.: 1

Socket (Female)

Circular MIL Spec Contacts 38999 III 8 PIN COAX HF CONTAC

21-033448-03HF
Amphenol Aerospace
1: €178.65
97In Stock

Mfr. Part No.
21-033448-03HF

Mouser Part No
654-21-033448-03HF

Amphenol Aerospace

Circular MIL Spec Contacts 38999 III 8 PIN COAX HF CONTAC

Datasheet

97In Stock

€178.65

€157.58

€151.93

€150.83

View

Min.: 1
Mult.: 1

Pin (Male)

Circular MIL Spec Contacts PIN 10 GA

M39029/58-528
Amphenol Aerospace
1: €7.28
2,112In Stock

Mfr. Part No.
M39029/58-528

Mouser Part No
654-M39029/58-528

Amphenol Aerospace

Circular MIL Spec Contacts PIN 10 GA

Datasheet

2,112In Stock

€7.28

€6.31

Min.: 1
Mult.: 1

Pin (Male)

Crimp

Circular MIL Spec Contacts SKT COAX SZ 8 LJT-R

21-033101-023
Amphenol Aerospace
1: €101.62
567In 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

Learn More

567In Stock

€101.62

Min.: 1
Mult.: 1

Socket (Pin Center)

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

21-033123-563
Amphenol Aerospace
1: €61.24
57In Stock

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

57In Stock

€61.24

€54.44

€52.34

€50.59

View

Min.: 1
Mult.: 1

Socket (Pin Center)

Circular MIL Spec Tools, Hardware & Accessories CAP

MS27502B-19N
Amphenol Aerospace
1: €46.44
33In Stock

Mfr. Part No.
MS27502B-19N

Mouser Part No
654-MS27502B-19N

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories CAP

Datasheet

33In Stock

€46.44

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories CAP

10-552943-139
Amphenol Aerospace
1: €155.54
9In Stock

Mfr. Part No.
10-552943-139

Mouser Part No
654-10-552943-139

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories CAP

Datasheet

9In Stock

€155.54

View

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Tools, Hardware & Accessories CAP ASSY

10-552943-17G
Amphenol Aerospace
1: €124.68
19In Stock

Mfr. Part No.
10-552943-17G

Mouser Part No
654-10-552943-17G

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories CAP ASSY

Datasheet

19In Stock

€124.68

€113.09

View

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Contacts ARINC600 QUADRAX SKT 8 CON

21-033383-021
Amphenol Aerospace
1: €123.01
18In Stock

Mfr. Part No.
21-033383-021

Mouser Part No
654-21-033383-021

Amphenol Aerospace

Circular MIL Spec Contacts ARINC600 QUADRAX SKT 8 CON

Datasheet

18In Stock

€123.01

€112.89

View

Min.: 1
Mult.: 1

Socket (Female)

Circular MIL Spec Contacts 8P COAXIAL PIN

21-033592-021
Amphenol Aerospace
1: €216.04
31In Stock
22Expected 12/05/2026

Mfr. Part No.
21-033592-021

Mouser Part No
654-21-033592-021

Amphenol Aerospace

Circular MIL Spec Contacts 8P COAXIAL PIN

Datasheet

31In Stock

22Expected 12/05/2026

€216.04

€193.15

€186.22

Min.: 1
Mult.: 1

Pin (Male)

Circular MIL Spec Contacts TRIAX CONTACT

21-033198-004
Amphenol Aerospace
1: €191.41
8In Stock

Mfr. Part No.
21-033198-004

Mouser Part No
654-21-033198-004

Amphenol Aerospace

Circular MIL Spec Contacts TRIAX CONTACT

Datasheet

8In Stock

€191.41

Min.: 1
Mult.: 1

Socket (Female)

Circular MIL Spec Tools, Hardware & Accessories Cap and Chain

10-552943-11G
Amphenol Aerospace
1: €127.52
33In Stock

Mfr. Part No.
10-552943-11G

Mouser Part No
654-10-552943-11G

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories Cap and Chain

Datasheet

33In Stock

€127.52

€120.72

€116.08

View

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Tools, Hardware & Accessories TV 15 CAP & CHAIN RECP NI

10-552943-15G
Amphenol Aerospace
1: €260.35
34In Stock
18Expected 06/03/2026

Mfr. Part No.
10-552943-15G

Mouser Part No
654-10-552943-15G

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories TV 15 CAP & CHAIN RECP NI

Datasheet

34In Stock

18Expected 06/03/2026

€260.35

€231.66

€231.60

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Contacts SKT

21-033449-22HF
Amphenol Aerospace
1: €293.26
10In Stock
New At Mouser

Mfr. Part No.
21-033449-22HF

Mouser Part No
654-21-033449-22H

New At Mouser

Amphenol Aerospace

Circular MIL Spec Contacts SKT

10In Stock

€293.26

€266.75

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts MiniatureCylindrical Connector

21-033388-021
Amphenol Aerospace
1: €148.93
8In Stock

Mfr. Part No.
21-033388-021

Mouser Part No
654-21-033388-021

Amphenol Aerospace

Circular MIL Spec Contacts MiniatureCylindrical Connector

Learn More

Datasheet

8In Stock

€148.93

Min.: 1
Mult.: 1

Socket (Female)

Circular MIL Spec Tools, Hardware & Accessories Cap

10-553998-099
Amphenol Aerospace
1: €115.79
22In Stock

Mfr. Part No.
10-553998-099

Mouser Part No
654-10-553998-099

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories Cap

Datasheet

22In Stock

€115.79

€106.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts PCB 90 degree Socket D38999 Series III

21-033837-041
Amphenol Aerospace
1: €425.96
24In Stock

Mfr. Part No.
21-033837-041

Mouser Part No
654-21-033837-041

Amphenol Aerospace

Circular MIL Spec Contacts PCB 90 degree Socket D38999 Series III

Learn More

Datasheet

24In Stock

€425.96

€387.46

View

Min.: 1
Mult.: 1

Socket (Female)

Solder

Standard Circular Connector TV 18C 14#22D 4#8(QUAD) PIN PL

TV06RQF-19-18P-LC
Amphenol Aerospace
1: €336.04
5In Stock

Mfr. Part No.
TV06RQF-19-18P-LC

Mouser Part No
654-TV06RQF1918PLC

Amphenol Aerospace

Standard Circular Connector TV 18C 14#22D 4#8(QUAD) PIN PL

Datasheet

5In Stock

€336.04

View

Min.: 1
Mult.: 1

Plugs

Without Pin Contacts

Crimp

Circular MIL Spec Tools, Hardware & Accessories PROTECTION CAP SHELL SIZE 23

10-552943-23G
Amphenol Aerospace
1: €124.03
36In Stock

Mfr. Part No.
10-552943-23G

Mouser Part No
654-10-552943-23G

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories PROTECTION CAP SHELL SIZE 23

Datasheet

36In Stock

€124.03

€113.83

€109.44

View

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Contacts SOCK CNT

21-033197-003
Amphenol Aerospace
1: €469.60
11In Stock

Mfr. Part No.
21-033197-003

Mouser Part No
654-21-033197-003

Amphenol Aerospace

Circular MIL Spec Contacts SOCK CNT

Datasheet

11In Stock

€469.60

Min.: 1
Mult.: 1

Socket (Female)

Circular MIL Spec Contacts TERMINI CONTACT

CF-198148-128
Amphenol Aerospace
1: €119.93
54In Stock

Mfr. Part No.
CF-198148-128

Mouser Part No
654-CF-198148-128

Amphenol Aerospace

Circular MIL Spec Contacts TERMINI CONTACT

Datasheet

54In Stock

€119.93

€110.06

€105.82

€102.31

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories CAP

MS27511B-16N
Amphenol Aerospace
1: €84.11
30In Stock

Mfr. Part No.
MS27511B-16N

Mouser Part No
654-MS27511B-16N

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories CAP

Datasheet

30In Stock

€84.11

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Tools, Hardware & Accessories TV 11 DUST CAP CAD OD NI

10-552943-119
Amphenol Aerospace
1: €220.12
19In Stock

Mfr. Part No.
10-552943-119

Mouser Part No
654-10-552943-119

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories TV 11 DUST CAP CAD OD NI

Datasheet

19In Stock

€220.12

€194.22

Min.: 1
Mult.: 1

Accessories

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

21-033899-8Q2
Amphenol Aerospace
1: €11.95
33In 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

Learn More

Datasheet

33In Stock

€11.95

€10.60

€10.19

View

Min.: 1
Mult.: 1

Accessories

Circular MIL Spec Contacts FIBER OPTIC CONTACT

CF-198081-010
Amphenol Aerospace
1: €172.03
18In Stock

Mfr. Part No.
CF-198081-010

Mouser Part No
654-CF-198081-010

Amphenol Aerospace

Circular MIL Spec Contacts FIBER OPTIC CONTACT

Datasheet

18In Stock

€172.03

€148.54

View

Min.: 1
Mult.: 1

High Speed Series Circular Connectors

Types of Circular Connectors

Customer Service Office

Company

Resources

Support