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.

Results: 2,032
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (SGD) 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 SZ 23;100 PIN CRIMP WL MNT RECPT
Datasheet
102In Stock
Min.: 1
Mult.: 1
100 Position Socket (Female) 23-35 Receptacles 23 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 19P PLG SZ 25 SKT CBL MNT
Datasheet
87On Order
Min.: 1
Mult.: 1

19 Position Socket (Female) 25-19 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 21#20 2#16 SOCKET
Datasheet
29In Stock
Min.: 1
Mult.: 1

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 Each
Amphenol Aerospace Circular MIL Spec Connector TV 128C
Datasheet
5In Stock
35On Order
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
Amphenol Aerospace Circular MIL Spec Connector 128P SIZE 25 JAM NUT RECEPTACLE SKT
Datasheet
41In 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 37P SIZE 15 JAM NUT RECEPTACLE PIN
Datasheet
23In Stock
Min.: 1
Mult.: 1

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 3P SZ 9 PLUG CBL MNT PIN
Datasheet
98In Stock
Min.: 1
Mult.: 1

3 Position Pin (Male) 09-98 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 66P PLG SZ 19 SKT CBL MNT
Datasheet
75In Stock
Min.: 1
Mult.: 1
No
66 Position Socket (Female) 19-35 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 55P PLG SZ 23 PIN CBL MNT
Datasheet
95In Stock
Min.: 1
Mult.: 1

55 Position Pin (Male) 23-55 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 128P RCPT SZ 25 SKT WL MNT
Datasheet
35In Stock
Min.: 1
Mult.: 1

128 Position Socket (Female) 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 FM SZ 25 SCKT WL MNT
Datasheet
61In Stock
Min.: 1
Mult.: 1
No
128 Position Socket (Female) 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 128P FM SZ 25 SKT WL MNT
Datasheet
60In Stock
Min.: 1
Mult.: 1
No
128 Position Socket (Female) 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 100P SIZE 23 STRAIGHT PLUG PIN
Datasheet
64In Stock
Min.: 1
Mult.: 1
No
100 Position Pin (Male) 23-35 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 53P PLG SZ 23 PIN CBL MNT
Datasheet
97Expected 3/8/2026
Min.: 1
Mult.: 1

53 Position Pin (Male) 23-53 Plugs 23 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 24P PLG SZ 25 PIN CBL MNT
Datasheet
98On Order
Min.: 1
Mult.: 1
No
24 Position Pin (Male) 25-24 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 13 A, 23 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 3P FM SZ 9 SKT PNL MNT
Datasheet
100In Stock
Min.: 1
Mult.: 1
No
3 Position Socket (Female) 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 32P JAM NUT PIN SZ 19
Datasheet
98In Stock
Min.: 1
Mult.: 1
No
32 Position Pin (Male) 19-32 Receptacles 19 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 5P STRT CABLE PLUG PIN CRIMP SZ 11
Datasheet
29In Stock
Min.: 1
Mult.: 1
5 Position Pin (Male) 11-05 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Each
Amphenol Aerospace Circular MIL Spec Connector 6P ST PLUG SOC SZ 17
Datasheet
100In Stock
Min.: 1
Mult.: 1
No
6 Position Without Socket Contacts 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 55P RCPT SZ 17 SKT WL MNT
Datasheet
26In 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 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P PLG SZ 9 SKT CBL MNT
Datasheet
94On Order
Min.: 1
Mult.: 1
No
6 Position Socket (Female) 09-35 Plugs 9 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 32P PLG SZ 19 PIN CBL MNT
Datasheet
22In 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 55P PLG SZ 17 SKT CBL MNT
Datasheet
21In Stock
Min.: 1
Mult.: 1
55 Position Socket (Female) 17-35 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector 41P st plug soc SZ 21
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
41 Position Socket (Female) 21-41 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum Bulk
Amphenol Aerospace Circular MIL Spec Connector TRI-START ALUMINUM
Datasheet
101In 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