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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Qty. RoHS ECAD Model Number of Positions
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Amphenol Aerospace Circular MIL Spec Connector 19P FM SZ 15 SKT PNL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
19 Position Socket (Female) 15-19 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 7P ST PLUG SOC SZ 11
Datasheet
27In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 66P PLG SZ 19 PIN CBL MNT
Datasheet
17In 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 Composite 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 79P PLG SZ 21 SKT CBL MNT
Datasheet
15In Stock
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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 7P ST PLUG SOC SZ 11
Datasheet
27In Stock
Min.: 1
Mult.: 1

7 Position Socket (Female) 11-99 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Stainless 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 6P Size 17 Straight Plug
Datasheet
48In Stock
Min.: 1
Mult.: 1

6 Position Socket (Female) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy Stainless 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 15P ST PLUG SOC SZ 15
Datasheet
46In Stock
Min.: 1
Mult.: 1
15 Position Socket (Female) 15-15 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 6P PIN PLUG
Datasheet
51In Stock
Min.: 1
Mult.: 1
6 Position Pin (Male) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 18P SIZE 15 WALL MOUNT RECEPTACLE PIN
Datasheet
15In Stock
Min.: 1
Mult.: 1
No
18 Position Pin (Male) 15-18 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 37P WL mnt soc sz 15
Datasheet
12In Stock
Min.: 1
Mult.: 1
No
37 Position Socket (Female) 15-35 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 3P RCPT SZ 9 SKT WL MNT
Datasheet
24In Stock
Min.: 1
Mult.: 1

3 Position Socket (Female) 09-98 Receptacles 9 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 8P Sz 13 Wall Mount Recpt Composite Nic
Datasheet
16In Stock
Min.: 1
Mult.: 1

8 Position Socket (Female) 13-08 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 16P SIZE 21 WALL MOUNT RECEPTACLE PIN
Datasheet
54In Stock
Min.: 1
Mult.: 1

16 Position Pin (Male) 21-16 Receptacles 21 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 13 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P jam nut soc sz 9
Datasheet
52In Stock
Min.: 1
Mult.: 1
6 Position Socket (Female) 09-35 Receptacles 9 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 22P ST PLUG SZ 13
Datasheet
24In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 19P PLG SZ 15 PIN CBL MNT
Datasheet
29In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 100P PLG SZ 23 SKT CBL MNT
Datasheet
16In Stock
7Expected 8/12/2026
Min.: 1
Mult.: 1
No
100 Position Socket (Female) 23-35 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P SIZE 9 STRAIGHT PLUG PIN
Datasheet
22In Stock
Min.: 1
Mult.: 1

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 26P SIZE 17 STRAIGHT PLUG PIN
Datasheet
25In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 26P PLG SZ 17 SKT CBL MNT
Datasheet
25In Stock
Min.: 1
Mult.: 1
26 Position Socket (Female) 17-26 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 55P FEMALE
Datasheet
12In 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 Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P FM SZ 17 SKT WL MNT
Datasheet
27In Stock
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 17-06 Receptacles 17 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 23 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 128P FM SZ 25 PIN WL MNT
Datasheet
50In Stock
Min.: 1
Mult.: 1
No
128 Position Pin (Male) 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 13P FM SZ 11 PIN WL MNT
Datasheet
23In Stock
Min.: 1
Mult.: 1

13 Position Pin (Male) 11-35 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 19P RCPT SZ 15 SKT WL MNT
Datasheet
19In Stock
Min.: 1
Mult.: 1

19 Position Socket (Female) 15-19 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy Composite 38999