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 (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Number of Positions
Contact Gender
Insert Arrangement
Product
Shell Size
Shell Style
MIL Type
Termination Style
Mounting Style
Current Rating
Contact Plating
Contact Material
Series
Packaging
Amphenol Aerospace Circular MIL Spec Connector 39P FM SZ 21 PIN WL MNT
Datasheet
93In Stock
Min.: 1
Mult.: 1
39 Position Pin (Male) 21-39 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 STRAIGHT PLUG PIN
Datasheet
56In Stock
42On Order
Min.: 1
Mult.: 1
13 Position Pin (Male) 11-35 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P ST PLUG PIN SZ 11
Datasheet
90In Stock
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 11-98 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 6P ST PLUG PIN SZ 17
Datasheet
100In Stock
Min.: 1
Mult.: 1
No
6 Position Without Pin Contacts 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector STRAIGHT PLUG SHELL SIZE 17 OLIVE DRAB
Datasheet
77In 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 23P RCPT SZ 17 SCKT WL MNT
Datasheet
97In Stock
Min.: 1
Mult.: 1
No
23 Position Socket (Female) 17-99 Receptacles 17 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 3P FM SZ 9 SKT PNL MNT
Datasheet
98In Stock
Min.: 1
Mult.: 1
No
3 Position Socket (Female) 09-98 Receptacles 9 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 32P JAM NUT PIN SZ 19
Datasheet
91In Stock
Min.: 1
Mult.: 1
No
32 Position Pin (Male) 19-32 Receptacles 19 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 61P JAM NUT SOC SZ 25
Datasheet
97In Stock
Min.: 1
Mult.: 1
No
61 Position Socket (Female) 25-61 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P ST PLUG SOC SZ 17
Datasheet
93In Stock
Min.: 1
Mult.: 1
No
6 Position Without Socket Contacts 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 55P RCPT SZ 17 SKT WL MNT
Datasheet
26In Stock
Min.: 1
Mult.: 1
No
55 Position Socket (Female) 17-35 Receptacles 17 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector KJA SERIES III
Datasheet
105In Stock
Min.: 1
Mult.: 1
61 Position Pin (Male) 25-61 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 9 SKT CBL MNT
Datasheet
78In Stock
15Expected 30/10/2026
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 09-35 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 100P SIZE 23 WALL MOUNT RECEPTACLE PIN
Datasheet
44In Stock
Min.: 1
Mult.: 1
100 Position Without Pin Contacts 23-35 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 39P FM SZ 21 PIN PNL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
39 Position Pin (Male) 21-39 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 41P st plug soc SZ 21
Datasheet
16In 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 Bulk
Amphenol Aerospace Circular MIL Spec Connector 53P SIZE 23 STRAIGHT PLUG SKT
Datasheet
81In Stock
17Expected 20/10/2026
Min.: 1
Mult.: 1
53 Position Socket (Female) 23-53 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 12P SZ 15 PANEL MOUNT PIN
Datasheet
17In Stock
Min.: 1
Mult.: 1
No
12 Position Pin (Male) 15-97 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 11P FM SZ 21 PIN PNL MNT
Datasheet
48In Stock
42Expected 14/10/2026
Min.: 1
Mult.: 1
No
11 Position Pin (Male) 21-11 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 23P SZ 17 PLUG CBL MNT PIN
Datasheet
90In Stock
Min.: 1
Mult.: 1
23 Position Pin (Male) 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 4P ST PLUG SZ 13
Datasheet
95In Stock
Min.: 1
Mult.: 1
4 Position Socket (Female) 13-04 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 8P PLG SZ 13 PIN CBL MNT
Datasheet
100In Stock
Min.: 1
Mult.: 1
No
8 Position Pin (Male) 13-08 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13
Datasheet
116In Stock
Min.: 1
Mult.: 1
No
22 Position Pin (Male) 13-35 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT
Datasheet
30In Stock
Min.: 1
Mult.: 1
79 Position Socket (Female) 21-35 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 53P PLG SZ 23 PIN CBL MNT
Datasheet
88In 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