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 (JPY) 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
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Contact Material
Series
Packaging
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
24In Stock
Min.: 1
Mult.: 1
79 Position Socket (Female) 21-35 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 30P SIZE 25 WALL MOUNT RECEPTACLE SKT
Datasheet
32In Stock
Min.: 1
Mult.: 1
30 Position Socket (Female) 25-20 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A, 23 A, 46 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 128P WL mnt soc sz 25
Datasheet
25In Stock
Min.: 1
Mult.: 1
128 Position Socket (Female) 25-35 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 56P WL mnt pin sz 25
Datasheet
27In Stock
Min.: 1
Mult.: 1

56 Position Pin (Male) 25-04 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A Gold Copper Alloy Composite 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
39 Position Socket (Female) 21-39 Receptacles 21 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 13P SZ 11 RCPT PNL MNT SKT
Datasheet
17In Stock
Min.: 1
Mult.: 1
No
13 Position Socket (Female) 11-35 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P SZ 11 PANEL MOUNT SOCKET
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 11-98 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 13P RCPT SZ 11 PIN PNL MNT
Datasheet
21In Stock
Min.: 1
Mult.: 1

13 Position Pin (Male) 11-35 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 10P jam nut soc sz 13
Datasheet
23In Stock
Min.: 1
Mult.: 1

10 Position Socket (Female) 13-98 Receptacles 13 Jam Nut MIL-DTL-38999 III Crimp Panel Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 18P FM SZ 15 SKT PNL MNT
Datasheet
12In Stock
Min.: 1
Mult.: 1

18 Position Socket (Female) 15-18 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 37P jam nut soc sz 15
Datasheet
27In Stock
Min.: 1
Mult.: 1

37 Position Socket (Female) 15-35 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 8P FM SZ 17 PIN PNL MNT
Datasheet
98In Stock
Min.: 1
Mult.: 1
No
8 Position Pin (Male) 17-08 Receptacles 17 Jam Nut MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P SZ 9 PLUG CBL MNT PIN
Datasheet
12In Stock
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 09-35 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 9 PIN CBL MNT
Datasheet
22In Stock
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 09-35 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 3P PLG SZ 9 SKT CBL MNT
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
3 Position Socket (Female) 09-98 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 PIN CABLE MOUNT PLUG
Datasheet
23In Stock
Min.: 1
Mult.: 1
No
13 Position Pin (Male) 11-35 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 13P PLG SZ 11 PIN CBL MNT
Datasheet
53In Stock
Min.: 1
Mult.: 1
No
13 Position Pin (Male) 11-35 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 11 PIN CBL MNT
Datasheet
11In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 11 SKT CBL MNT
Datasheet
23In Stock
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 11-98 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 9P ST PLUG SZ 13
Datasheet
21In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 9P ST PLUG SOC SZ 13
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
8 Position Socket (Female) 13-08 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 37P PLG SZ 15 PIN CBL MNT
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
37 Position Pin (Male) 15-35 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 37P PLG SZ 15 SKT CBL MNT
Datasheet
13In Stock
25Expected 12/4/2026
Min.: 1
Mult.: 1
No
37 Position Socket (Female) 15-35 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 12P PLG SZ 15 SKT CBL MNT
Datasheet
17In Stock
Min.: 1
Mult.: 1
No
12 Position Socket (Female) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
34In 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 Composite 38999