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
Contact Plating
Contact Material
Series
Packaging
Amphenol Aerospace Circular MIL Spec Connector 7P ST PLUG SOC SZ 11
Datasheet
1In 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
Amphenol Aerospace Circular MIL Spec Connector 22P SIZE 13 STRAIGHT PLUG PIN
Datasheet
3In Stock
100Expected 10/6/2026
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 PIN
Datasheet
2In 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 PLG SZ 13 PIN CBL MNT
Datasheet
9In 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 4P PLG SZ 13 PIN CBL MNT
Datasheet
5In Stock
Min.: 1
Mult.: 1
No
4 Position Pin (Male) 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
1In Stock
100Expected 10/6/2026
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 10P PLG SZ 13 PIN CBL MNT
Datasheet
15In Stock
Min.: 1
Mult.: 1
No
10 Position Pin (Male) 13-98 Plugs 13 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 18P PLG SZ 15 PIN CBL MNT
Datasheet
4In Stock
10Expected 11/2/2026
Min.: 1
Mult.: 1
No
18 Position Pin (Male) 15-18 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 19P SIZE 15 PIN CABLE MOUNT PLUG
Datasheet
4In Stock
Min.: 1
Mult.: 1
No
19 Position Pin (Male) 15-19 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 37P ST PLUG SOC SZ 15
Datasheet
16In Stock
110On Order
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 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P ST PLUG PIN SZ 15
Datasheet
13In Stock
Min.: 1
Mult.: 1
No
5 Position Pin (Male) 15-05 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
13In Stock
Min.: 1
Mult.: 1
No
12 Position Pin (Male) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 12P STRT CABLE PLUG PIN CRIMP SZ 15
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
12 Position Pin (Male) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
11In Stock
Min.: 1
Mult.: 1
No
26 Position Socket (Female) 17-26 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 17 PIN CBL MNT
Datasheet
2In Stock
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 8P ST PLUG PIN SZ 17
Datasheet
2In Stock
Min.: 1
Mult.: 1
No
8 Position Without Pin Contacts 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 Size 17 Straight Plug
Datasheet
7In Stock
Min.: 1
Mult.: 1
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
3In 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 SZ 19 CBL MNT SOC
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
11 Position Without Socket 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 11P SZ 19 CBL MNT SOC
Datasheet
1In Stock
Min.: 1
Mult.: 1
11 Position Socket (Female) 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 SZ 19 CBL MNT PIN
Datasheet
1In Stock
Min.: 1
Mult.: 1
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 11P PLG SZ 21 SKT CBL MNT
Datasheet
3In 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 16P PLG SZ 21 SKT CBL MNT
Datasheet
9In 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 Each
Amphenol Aerospace Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT
Datasheet
2In Stock
100Expected 8/24/2026
Min.: 1
Mult.: 1
No
79 Position Socket (Female) 21-35 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum Each