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
Contact Gender
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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 7P SIZE 11 SOCKET CABLE MOUNT PLUG
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
7 Position Socket (Female) 11-99 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 7P SZ 11 PLUG CBL MNT SKT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
7 Position Socket (Female) 11-99 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 22P PLG SZ 13 PIN CBL MNT
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
22 Position Pin (Male) 13-35 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 22P SIZE 13 STRAIGHT PLUG SKT
Datasheet
15In Stock
Min.: 1
Mult.: 1
No
22 Position Socket (Female) 13-35 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 22P ST PLUG SOC SZ 13
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
22 Position Socket (Female) 13-35 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 11P Size 19 Straight Cable Plug OD Cad
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
11 Position Without Pin Contacts 19-11 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 66P SIZE 19 STRAIGHT PLUG PIN
Datasheet
1In Stock
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 11P PLG SZ 21 SKT CBL MNT
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
11 Position Socket (Female) 21-11 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 100P STRT CABLE PLUG PIN CRIMP SZ 23
Datasheet
7In 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 TRI-START ALUMINUM
Datasheet
19Expected 11/06/2026
Min.: 1
Mult.: 1

37 Position Socket (Female) 15-35 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P RCPT SZ 9 PIN WL MNT
Datasheet
10Expected 04/05/2026
Min.: 1
Mult.: 1

6 Position Pin (Male) 09-35 Receptacles 9 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 4P WL mnt recpt sz 13
Datasheet
2In Stock
Min.: 1
Mult.: 1
No
4 Position Socket (Female) 13-04 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy Composite 38999 Each
Amphenol Aerospace Circular MIL Spec Connector 18P WL MNT PIN SZ 15
Datasheet
5In Stock
Min.: 1
Mult.: 1
No
18 Position Pin (Male) 15-18 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999 Each
Amphenol Aerospace Circular MIL Spec Connector 41P RCPT SZ 21 SKT WL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
41 Position Socket (Female) 21-41 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 53P WL mnt pin sz 23
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
53 Position Pin (Male) 23-53 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 53P WL mnt recpt sz 23
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
53 Position Socket (Female) 23-53 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P RCPT SZ 9 SKT WL MNT
Datasheet
10On Order
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 09-35 Receptacles 9 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 2P FM SZ 11 SKT WL MNT
Datasheet
100Expected 28/09/2026
Min.: 1
Mult.: 1
No
2 Position Socket (Female) 11-02 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13
Datasheet
32On Order
Min.: 1
Mult.: 1
No
22 Position Pin (Male) 13-35 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 79P Size 21 Wall Mount Receptacle
Datasheet
4Expected 02/03/2026
Min.: 1
Mult.: 1
No
79 Position Socket (Female) 21-35 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 4P RCPT SZ 21 SKT WL MNT
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
4 Position Without Socket Contacts 21-75 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Panel 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 100P FM SZ 23 PIN WL MNT
Datasheet
5Expected 20/04/2026
Min.: 1
Mult.: 1

100 Position Pin (Male) 23-35 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 128P SIZE 25 WALL MOUNT RECEPTACLE SKT
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
128 Position Socket (Female) 25-35 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 56P WL MNT SOC SZ 25
Datasheet
9In Stock
Min.: 1
Mult.: 1
No
56 Position Socket (Female) 25-04 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 99P SIZE 25 WALL MOUNT RECEPTACLE SKT
Datasheet
3Expected 20/07/2026
Min.: 1
Mult.: 1
No
99 Position Socket (Female) 25-07 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A, 46 A Gold Copper Alloy 38999 Aluminum