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 (EUR) 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 FM SZ 21 PIN PNL MNT
Datasheet
12In Stock
6Expected 26/02/2026
Min.: 1
Mult.: 1
41 Position Pin (Male) 21-41 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 2P FM SZ 11 SKT PNL MNT
Datasheet
110In Stock
Min.: 1
Mult.: 1
No
2 Position Socket (Female) 11-02 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 37P SIZE 15 PIN PANEL MOUNT
Datasheet
57In Stock
Min.: 1
Mult.: 1
No
37 Position Pin (Male) 15-35 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P SIZE 15 STRAIGHT JAM NUT SKT
Datasheet
27In Stock
Min.: 1
Mult.: 1
No
5 Position Socket (Female) 15-05 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 66P RCPT SZ 19 PIN PNL MNT
Datasheet
39In Stock
Min.: 1
Mult.: 1
No
66 Position Pin (Male) 19-35 Receptacles 19 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 39P FM SZ 21 PIN PNL MNT
Datasheet
15In Stock
Min.: 1
Mult.: 1
No
39 Position Pin (Male) 21-39 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 4P RCPT SZ 21 SKT PNL MNT
Datasheet
9In Stock
Min.: 1
Mult.: 1
No
4 Position Socket (Female) 21-75 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 21P RCPT SZ 23 SKT PNL MNT
Datasheet
20In Stock
Min.: 1
Mult.: 1
No
21 Position Socket (Female) 23-21 Receptacles 23 Jam Nut MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 55P SIZE 23 JAM NUT RECEPTACLE PIN
Datasheet
28In Stock
Min.: 1
Mult.: 1
No
55 Position Pin (Male) 23-55 Receptacles 23 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 30P SIZE 25 JAM NUT RECEPTACLE SKT
Datasheet
18In Stock
Min.: 1
Mult.: 1
30 Position Socket (Female) 25-20 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A, 13 A, 23 A, 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 8P SZ 17 CABLE MNT SOCKET
Datasheet
17In 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 Each
Amphenol Aerospace Circular MIL Spec Connector 18P SZ 19 PLUG CBL MNT PIN
Datasheet
7In Stock
Min.: 1
Mult.: 1
18 Position Pin (Male) 19-18 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A, 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 32P PLG SZ 19 PIN CBL MNT
Datasheet
24In Stock
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 Bulk
Amphenol Aerospace Circular MIL Spec Connector 43P PLG SZ 25 SKT CBL MNT
Datasheet
17In Stock
Min.: 1
Mult.: 1
43 Position Socket (Female) 25-43 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 128P PLG SZ 25 SKT CBL MNT
Datasheet
22In Stock
Min.: 1
Mult.: 1
No
128 Position Socket (Female) 25-35 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 12P PLUG SKT
Datasheet
22In Stock
Min.: 1
Mult.: 1
12 Position Socket (Female) 15-97 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy Composite 38999 Each
Amphenol Aerospace Circular MIL Spec Connector 7P PLG SZ 11 SKT CBL MNT
Datasheet
30In 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 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 10P PLG SZ 13 PIN CBL MNT
Datasheet
32In 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 Each
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
81In Stock
Min.: 1
Mult.: 1
No
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 Each
Amphenol Aerospace Circular MIL Spec Connector 61P SIZE 25 STRAIGHT PLUG SKT
Datasheet
72In Stock
Min.: 1
Mult.: 1
No
61 Position Socket (Female) 25-61 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 13P RCPT SZ 11 PIN WL MNT
Datasheet
6In 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 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 8P SIZE 13 WALL MOUNT RECEPTACLE SKT
Datasheet
1In 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 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 10P RCPT SZ 13 SKT WL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1

10 Position Socket (Female) 13-98 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 18P SZ 15 WALL MNT PIN
Datasheet
2In Stock
Min.: 1
Mult.: 1

18 Position Pin (Male) 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 18P RCPT SZ 15 SKT WL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1

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