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 43P WL mnt soc sz 25
Datasheet
3In Stock
Min.: 1
Mult.: 1

43 Position Socket (Female) 25-43 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 56P WL MNT PIN SZ 25
Datasheet
4In Stock
Min.: 1
Mult.: 1

56 Position Pin (Male) 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 56P RCPT SZ 25 PIN WL MNT
Datasheet
5In Stock
Min.: 1
Mult.: 1

56 Position Pin (Male) 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 56P RCPT SZ 25 SKT WL MNT
Datasheet
3In Stock
Min.: 1
Mult.: 1

56 Position Socket (Female) 25-04 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp 7.5 A, 13 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 61P RCPT SZ 25 PIN WL MNT
Datasheet
4In Stock
Min.: 1
Mult.: 1

61 Position Pin (Male) 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 61P WL MNT SOC SZ 25
Datasheet
2In Stock
Min.: 1
Mult.: 1

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 61P WL MNT SOC SZ 25
Datasheet
9In Stock
Min.: 1
Mult.: 1

61 Position Socket (Female) 25-61 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 8P RCPT SZ 25 SKT WL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1

8 Position Socket (Female) 25-08 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp 46 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 22P FM SZ 13 PIN WL MNT
Datasheet
13In Stock
Min.: 1
Mult.: 1

22 Position Pin (Male) 13-35 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 24P RCPT SZ 25 SKT WL MNT
Datasheet
1In Stock
Min.: 1
Mult.: 1

24 Position Socket (Female) 25-24 Receptacles 25 Wall Mount MIL-DTL-38999 III Crimp Panel 13 A, 23 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 2P SZ 11 PANEL MNT PIN
Datasheet
5In Stock
Min.: 1
Mult.: 1

2 Position Pin (Male) 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 13P SZ 11 RCPT PNL MNT PIN
Datasheet
12In 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 5P RCPT SZ 15 SKT PNL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1

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 55P SIZE 17 JAM NUT RECEPTACLE SKT
Datasheet
4In Stock
Min.: 1
Mult.: 1

55 Position Without Socket Contacts 17-35 Receptacles 17 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 6P jam nut soc sz 17
Datasheet
3In Stock
28Expected 12/10/2026
Min.: 1
Mult.: 1

6 Position Socket (Female) 17-06 Receptacles 17 Jam Nut MIL-DTL-38999 III Crimp Panel 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 32P RCPT SZ 19 PIN PNL MNT
Datasheet
2In Stock
Min.: 1
Mult.: 1

32 Position Pin (Male) 19-32 Receptacles 19 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 66P RCPT SZ 19 PIN PNL MNT
Datasheet
5In Stock
66Expected 22/07/2026
Min.: 1
Mult.: 1

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 79P jam nut soc sz 21
Datasheet
10In Stock
Min.: 1
Mult.: 1

79 Position Without Socket Contacts 21-35 Receptacles 21 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 128P SIZE 25 JAM NUT RECEPTACLE SKT
Datasheet
9In Stock
Min.: 1
Mult.: 1

128 Position Socket (Female) 25-35 Receptacles 25 Jam Nut MIL-DTL-38999 III Crimp Panel 5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 2P JAM NUT SOC sz 11
Datasheet
10In Stock
Min.: 1
Mult.: 1

2 Position Socket (Female) 11-02 Receptacles 11 Jam Nut MIL-DTL-38999 III Crimp Panel 13 A Gold Copper Alloy Stainless 38999
Amphenol Aerospace Circular MIL Spec Connector 19P SZ 15 PLUG CBL MNT PIN
Datasheet
3In Stock
40Expected 13/07/2026
Min.: 1
Mult.: 1

19 Position Pin (Male) 15-19 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 26P PLG SZ 17 SKT CBL MNT
Datasheet
1In Stock
18Expected 29/07/2026
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 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 11P SZ 19 PLUG CBL MNT SKT
Datasheet
2In 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 66P PLG SZ 19 SKT CBL MNT
Datasheet
1In Stock
50Expected 09/03/2026
Min.: 1
Mult.: 1

66 Position Socket (Female) 19-35 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 16P PLG SZ 21 SKT CBL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1

16 Position Socket (Female) 21-16 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 13 A Gold Copper Alloy 38999 Aluminum