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 (IDR) 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
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Contact Material
Series
Packaging
Amphenol Aerospace Circular MIL Spec Connector 41P WL mnt soc sz 21
Datasheet
17In Stock
Min.: 1
Mult.: 1
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 100P RCPT SZ 23 SKT WL MNT
Datasheet
13In Stock
Min.: 1
Mult.: 1

100 Position Socket (Female) 23-35 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector RCPT WALL MNT 6 POS SHELL SIZE 9
Datasheet
76In Stock
99On 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 SHELL 9 3 PIN RECPT
Datasheet
374In Stock
205Expected 20/04/2026
Min.: 1
Mult.: 1
No
3 Position Pin (Male) 09-98 Receptacles 9 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 13P SZ 11 WALL MOUNT PIN
Datasheet
84In Stock
Min.: 1
Mult.: 1
13 Position Pin (Male) 11-35 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 WALL MOUNT RECEPTACLE SKT
Datasheet
238In Stock
198Expected 16/02/2026
Min.: 1
Mult.: 1
No
13 Position Socket (Female) 11-35 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector WL mnt recpt sz 11 solder pin cont
Datasheet
39In Stock
135On Order
Min.: 1
Mult.: 1
No
5 Position Pin (Male) 11-05 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5 pin Size 20
Datasheet
151In Stock
Min.: 1
Mult.: 1
No
5 Position Socket (Female) 11-05 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6 pin; Size:11 Square Flange
Datasheet
256In Stock
Min.: 1
Mult.: 1
No
6 Position Pin (Male) 11-98 Receptacles 11 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 10P FM SZ 13 PIN WL MNT
Datasheet
82In Stock
401On Order
Min.: 1
Mult.: 1
No
10 Position Pin (Male) 13-98 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 10P FM SZ 13 SKT WL MNT
Datasheet
110In Stock
Min.: 1
Mult.: 1
No
10 Position Socket (Female) 13-98 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector SHELL 15 19 PIN RECPT
Datasheet
71In Stock
Min.: 1
Mult.: 1
No
19 Position Pin (Male) 15-19 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector RCPT WALL MNT 37POS SHELL SIZE: 15
Datasheet
146In Stock
93Expected 17/02/2026
Min.: 1
Mult.: 1
No
37 Position Pin (Male) 15-35 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector RCPT WALL MNT 37POS SHELL SIZE: 15
Datasheet
126In Stock
155Expected 20/04/2026
Min.: 1
Mult.: 1
No
37 Position Socket (Female) 15-35 Receptacles 15 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 JAM NUT RECEPTACLE PIN
Datasheet
5In Stock
Min.: 1
Mult.: 1
13 Position Pin (Male) 11-35 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P jam nut soc sz 9
Datasheet
54In 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 13P RCPT SZ 11 PIN PNL MNT
Datasheet
14In Stock
24Expected 19/05/2026
Min.: 1
Mult.: 1

13 Position Pin (Male) 11-35 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 18P FM SZ 15 SKT PNL MNT
Datasheet
22In Stock
Min.: 1
Mult.: 1

18 Position Socket (Female) 15-18 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 3P Size 9 Jam Nut Receptacle
Datasheet
343In Stock
Min.: 1
Mult.: 1
No
3 Position Pin (Male) 09-98 Receptacles 9 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 13P SIZE 11 PANEL MOUNT PIN
Datasheet
57In Stock
Min.: 1
Mult.: 1
No
13 Position Pin (Male) 11-35 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P FM SZ 11 PIN PNL MNT
Datasheet
65In Stock
Min.: 1
Mult.: 1
No
5 Position Pin (Male) 11-05 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector RCPT JAM NUT 22 POS SHELL SIZE: 13
Datasheet
309In Stock
Min.: 1
Mult.: 1
No
22 Position Pin (Male) 13-35 Receptacles 13 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 10P FM SZ 13 PIN PNL MNT
Datasheet
287In Stock
Min.: 1
Mult.: 1
No
10 Position Pin (Male) 13-98 Receptacles 13 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
150In Stock
Min.: 1
Mult.: 1
No
10 Position Socket (Female) 13-98 Receptacles 13 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 19P Size 15 Jam Nut Receptacle
Datasheet
33In Stock
Min.: 1
Mult.: 1
No
19 Position Pin (Male) 15-19 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum