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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Qty. RoHS ECAD Model Number of Positions
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Product
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Packaging
Amphenol Aerospace Circular MIL Spec Connector 32P JAM NUT PIN SZ 19
Datasheet
95In 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 99P Sz 25 St Cable Plug Stainless Steel
Datasheet
26In Stock
Min.: 1
Mult.: 1
99 Position Pin (Male) 25-07 Plugs 25 Straight MIL-DTL-38999 III Crimp Cable 5 A, 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 6P ST PLUG SOC SZ 17
Datasheet
96In 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 53P PLG SZ 23 PIN CBL MNT
Datasheet
39In Stock
58Expected 8/3/2026
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
97In Stock
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 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 6P st jam nut SZ 11
Datasheet
14In Stock
Min.: 1
Mult.: 1

6 Position Socket (Female) 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 6P PLG SZ 11 PIN CBL MNT
Datasheet
17In Stock
Min.: 1
Mult.: 1

6 Position Pin (Male) 11-98 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 53P RCPT SZ 23 PIN WL MNT
Datasheet
9In Stock
Min.: 1
Mult.: 1

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 4P PLG SZ 21 SKT CBL MNT
Datasheet
10In Stock
Min.: 1
Mult.: 1

4 Position Without Socket Contacts 21-75 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 46 A Gold Copper Alloy 38999 Aluminum
Amphenol Aerospace Circular MIL Spec Connector 22P FM SZ 13 PIN WL MNT
Datasheet
52In Stock
Min.: 1
Mult.: 1
No
22 Position Pin (Male) 13-35 Receptacles 13 Wall Mount MIL-DTL-38999 III Crimp Wall Mount 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 18P SIZE 15 SOCKET WALL MOUNT RECPT
Datasheet
20In 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 Composite 38999 Bulk
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 Wall Mount 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 19P FM SZ 15 SKT PNL MNT
Datasheet
7In Stock
Min.: 1
Mult.: 1
No
19 Position Socket (Female) 15-19 Receptacles 15 Jam Nut MIL-DTL-38999 III Crimp Panel 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 7P ST PLUG SOC SZ 11
Datasheet
27In Stock
Min.: 1
Mult.: 1
No
7 Position Socket (Female) 11-99 Plugs 11 Straight MIL-DTL-38999 III Crimp Cable 7.5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 66P PLG SZ 19 PIN CBL MNT
Datasheet
17In Stock
Min.: 1
Mult.: 1
No
66 Position Pin (Male) 19-35 Plugs 19 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 79P PLG SZ 21 SKT CBL MNT
Datasheet
18In Stock
Min.: 1
Mult.: 1
No
79 Position Socket (Female) 21-35 Plugs 21 Straight MIL-DTL-38999 III Crimp Cable 5 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 7P ST PLUG SOC SZ 11
Datasheet
27In 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 Stainless 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 6P Size 17 Straight Plug
Datasheet
48In Stock
Min.: 1
Mult.: 1

6 Position Socket (Female) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy Stainless 38999 Bulk
Amphenol Aerospace Circular MIL Spec Connector 15P ST PLUG SOC SZ 15
Datasheet
46In Stock
Min.: 1
Mult.: 1
15 Position Socket (Female) 15-15 Plugs 15 Straight MIL-DTL-38999 III Crimp Cable 7.5 A, 13 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 6P PIN PLUG
Datasheet
51In Stock
Min.: 1
Mult.: 1
6 Position Pin (Male) 17-06 Plugs 17 Straight MIL-DTL-38999 III Crimp Cable 23 A Gold Copper Alloy Composite 38999
Amphenol Aerospace Circular MIL Spec Connector 37P SIZE 15 WALL MOUNT RECEPTACLE SKT
Datasheet
20In Stock
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 Composite 38999