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 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 Wall Mount 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P FM SZ 9 PIN WL MNT
Datasheet
28In Stock
Min.: 1
Mult.: 1
No
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 13P FM SZ 11 PIN WL MNT
Datasheet
88Expected 9/4/2026
Min.: 1
Mult.: 1
No
13 Position Pin (Male) 11-35 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 13P RCPT SZ 11 SKT WL MNT
Datasheet
82Expected 8/31/2026
Min.: 1
Mult.: 1
No
13 Position Socket (Female) 11-35 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P WL mnt pin sz 11
Datasheet
98Expected 10/6/2026
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 11-98 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P SIZE 11 PIN WALL MOUNT RECPT
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 11-98 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 22P WL mnt pin sz 13
Datasheet
9In Stock
Min.: 1
Mult.: 1
No
22 Position Without Pin Contacts 13-35 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 8P FM SZ 13 SKT WL MNT
Datasheet
86Expected 8/28/2026
Min.: 1
Mult.: 1
No
8 Position Socket (Female) 13-08 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 18P RCPT SZ 15 SCKT WL MNT
Datasheet
6In Stock
Min.: 1
Mult.: 1
No
18 Position Socket (Female) 15-18 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 19P SIZE 15 WALL MOUNT RECEPTACLE SKT
Datasheet
99On Order
Min.: 1
Mult.: 1
No
19 Position Socket (Female) 15-19 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 37P FM SZ 15 SKT WL MNT
Datasheet
99Expected 1/11/2027
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 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 12P FM SZ 15 SKT WL MNT
Datasheet
98Expected 10/23/2026
Min.: 1
Mult.: 1
No
12 Position Socket (Female) 15-97 Receptacles 15 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 55P RCPT SZ 17 SCKT WL MNT
Datasheet
8In Stock
Min.: 1
Mult.: 1
No
55 Position Without Socket Contacts 17-35 Receptacles 17 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 23P RCPT SZ 17 SCKT WL MNT
Datasheet
99Expected 9/10/2026
Min.: 1
Mult.: 1
No
23 Position Socket (Female) 17-99 Receptacles 17 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 11P pin recpt
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
11 Position Without Pin Contacts 19-11 Receptacles 19 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 11P RCPT SZ 19 SKT WL MNT
Datasheet
86On Order
Min.: 1
Mult.: 1
No
11 Position Socket (Female) 19-11 Receptacles 19 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 53P RCPT SZ 23 PIN WL MNT
Datasheet
100Expected 12/14/2026
Min.: 1
Mult.: 1
No
53 Position Pin (Male) 23-53 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
128 Position Without Pin Contacts 25-35 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 128P SIZE 25 WALL MOUNT RECEPTACLE PIN
Datasheet
3In Stock
Min.: 1
Mult.: 1
No
128 Position Without Pin Contacts 25-35 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 46P WL MNT PIN SZ 25
Datasheet
10Expected 9/23/2026
Min.: 1
Mult.: 1
No
46 Position Pin (Male) 25-46 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A, 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 56P WL MNT SOC SZ 25
Datasheet
8In Stock
Min.: 1
Mult.: 1
No
56 Position Socket (Female) 25-04 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each


Amphenol Aerospace Circular MIL Spec Connector 61P SIZE 25 WALL MOUNT RECEPTACLE SKT
Datasheet
9In Stock
Min.: 1
Mult.: 1
No
61 Position Socket (Female) 25-61 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 8P RCPT SZ 25 SKT WL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1
No
8 Position Socket (Female) 25-08 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 6P FM SZ 11 PIN PNL MNT
Datasheet
94Expected 11/12/2026
Min.: 1
Mult.: 1

6 Position Pin (Male) 11-98 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector size 13 22 pin jam nut recpt
Datasheet
85Expected 9/29/2026
Min.: 1
Mult.: 1

22 Position Pin (Male) 13-35 Receptacles 13 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum