MIL-DTL-38999 Series III Connectors

Amphenol MIL-DTL-38999 Series III Circular Connectors deliver high-performance capabilities for demanding general duty and harsh environment applications. Developed to operate under severe high temperature and vibration, the connectors feature rapid coupling via a Tri-Start™ thread, shell-to-shell, or metal-to-metal bottoming. Amphenol designed these connectors to provide an EMI shielding capability of 65dB minimum at 10GHz and corrosion resistance of up to 500-hour salt spray exposure. Amphenol MIL-DTL-38999 Series III Circular Connectors offer a rated current range of 1.5A to 5A, a temperature range of -65°C to +175°C, minimum insulation resistance of 5000MΩ, and a dielectric withstanding voltage of 1000VRMS. These rugged and highly reliable circular connectors are ideally suited for industrial, commercial air, military, C4ISR, and space applications.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Number of Positions
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Product
Shell Size
Shell Style
MIL Type
Termination Style
Mounting Style
Current Rating
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Contact Material
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Packaging
Amphenol Aerospace Circular MIL Spec Connector 55P SIZE 17 PIN CABLE MOUNT
Datasheet
90In Stock
Min.: 1
Mult.: 1
No
55 Position Pin (Male) 17-35 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 55P Size 17 Straight Plug
Datasheet
9In Stock
Min.: 1
Mult.: 1
No
55 Position Socket (Female) 17-35 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector Size 17 55 pin STRAIGHT PLUG
Datasheet
178In Stock
Min.: 1
Mult.: 1
No
55 Position Socket (Female) 17-35 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P SIZE 17 STRAIGHT PLUG PIN
Datasheet
93In Stock
14Expected 17/04/2026
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 17 SKT CBL MNT
Datasheet
14In Stock
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P SIZE 17 STRAIGHT PLUG SOCKET
Datasheet
68In Stock
65Expected 24/04/2026
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 8P PLG SZ 17 PIN CBL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
8 Position Pin (Male) 17-08 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
47In Stock
Min.: 1
Mult.: 1
No
8 Position Pin (Male) 17-08 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 8P PLG SZ 17 SKT CBL MNT
Datasheet
43In Stock
Min.: 1
Mult.: 1
No
8 Position Socket (Female) 17-08 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 23P SZ 17 CBL MNT SOC
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
23 Position Socket (Female) 17-99 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 11P Size 19 Straight Plug
Datasheet
68In Stock
Min.: 1
Mult.: 1
No
11 Position Pin (Male) 19-11 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 28P SZ 19 CBL MNT PIN
Datasheet
22In Stock
Min.: 1
Mult.: 1
No
28 Position Pin (Male) 19-28 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector SZ 9 32P CABLE MOUNT INST ARNGMT 19-32
Datasheet
61In Stock
Min.: 1
Mult.: 1
No
32 Position Pin (Male) 19-32 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 66P SIZE 19 PIN CABLE MOUNT
Datasheet
61In Stock
58Expected 23/02/2026
Min.: 1
Mult.: 1
No
66 Position Pin (Male) 19-35 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 66P SZ 19 CBL MNT SOC
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
66 Position Socket (Female) 19-35 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 16P SIZE 21 STRAIGHT PLUG PIN
Datasheet
28In Stock
Min.: 1
Mult.: 1
No
16 Position Pin (Male) 21-16 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 16P SIZE 21 STRAIGHT PLUG SKT
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
16 Position Socket (Female) 21-16 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 39P SIZE 21 STRAIGHT PLUG SKT
Datasheet
9In Stock
Min.: 1
Mult.: 1
39 Position Socket (Female) 21-39 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 41P SIZE 21 STRAIGHT PLUG PIN
Datasheet
19In Stock
Min.: 1
Mult.: 1
No
41 Position Pin (Male) 21-41 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 41P SIZE 21 STRAIGHT PLUG SKT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
41 Position Socket (Female) 21-41 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 4P SZ 21 CBL MNT SOC
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
4 Position Without Socket Contacts 21-75 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 4P SIZE 21 STRAIGHT PLUG SKT
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
4 Position Socket (Female) 21-75 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector PLUG CRIMP TERM
Datasheet
89In Stock
Min.: 1
Mult.: 1
No
100 Position Pin (Male) 23-35 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector SHELL 23 100 PIN PLUG;CRIMP TERM
Datasheet
25In Stock
50Expected 27/04/2026
Min.: 1
Mult.: 1
No
100 Position Socket (Female) 23-35 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 53P PLG SZ 23 PIN CBL MNT
Datasheet
4In Stock
Min.: 1
Mult.: 1
53 Position Pin (Male) 23-53 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum