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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Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 STRAIGHT PLUG PIN
Datasheet
3In Stock
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 TRI-START ALUMINUM
Datasheet
1In Stock
Min.: 1
Mult.: 1
13 Position Socket (Female) 11-35 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
9In Stock
50Expected 11/05/2026
Min.: 1
Mult.: 1

5 Position Socket (Female) 11-05 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P SZ 11 PLUG CBL MNT SKT
Datasheet
2In Stock
Min.: 1
Mult.: 1
6 Position Socket (Female) 11-98 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector SIZE 13 4 PIN
Datasheet
3In Stock
20On Order
Min.: 1
Mult.: 1

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 4P ST PLUG SZ 13
Datasheet
4In 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 10P SZ 13 CABLE MNT PIN
Datasheet
2In Stock
Min.: 1
Mult.: 1
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
7In Stock
Min.: 1
Mult.: 1

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 PLG SZ 15 SKT CBL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1
19 Position Socket (Female) 15-19 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 37P ST PLUG SOC SZ 15
Datasheet
3In Stock
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 5P ST PLUG PIN SZ 15
Datasheet
1In Stock
Min.: 1
Mult.: 1
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 26P SIZE 17 PIN CABLE MOUNT PLUG
Datasheet
4In Stock
Min.: 1
Mult.: 1

26 Position Pin (Male) 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 9P ST PLUG SOC SZ 17
Datasheet
1In Stock
6Expected 09/03/2026
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 11P; SZ 19 ST PLUG SOCKET
Datasheet
4In Stock
Min.: 1
Mult.: 1

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 11P PLG SZ 19 SKT CBL MNT
Datasheet
3In 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 28P ST PLUG SOC SZ 19
Datasheet
2In Stock
Min.: 1
Mult.: 1
28 Position Socket (Female) 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 32P SIZE 19 STRAIGHT PLUG PIN
Datasheet
3In Stock
50Expected 03/03/2026
Min.: 1
Mult.: 1

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 11P ST PLUG PIN SZ 21
Datasheet
3In Stock
25Expected 09/03/2026
Min.: 1
Mult.: 1

11 Position Pin (Male) 21-11 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT
Datasheet
1In 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 79P SIZE 21 STRAIGHT PLUG SKT
Datasheet
1In 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 24P SZ 25 PLUG CBL MNT PIN
Datasheet
3In Stock
Min.: 1
Mult.: 1
24 Position Pin (Male) 25-24 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 13 A, 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 128P PLG SZ 25 PIN CBL MNT
Datasheet
2In Stock
Min.: 1
Mult.: 1

128 Position Pin (Male) 25-35 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 43P ST PLUG PIN SZ 25
Datasheet
1In Stock
Min.: 1
Mult.: 1

43 Position Pin (Male) 25-43 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 43P PLG SZ 25 PIN CBL MNT
Datasheet
2In Stock
Min.: 1
Mult.: 1

43 Position Pin (Male) 25-43 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 4P SIZE 25 STRAIGHT PLUG SOCKET
Datasheet
2In Stock
Min.: 1
Mult.: 1

56 Position Socket (Female) 25-04 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum