HD38999 Connectors

Amphenol Aerospace HD38999 Connectors offer 30% more contact density than the highest density Mil Spec 38999 connectors of its size. Designed using mil-specified 38999 components, mil-qualified 39029 size 23 contacts, and mil-qualified 38999 insert materials, these connectors are essentially a drop-in replacement for the standard 38999 connector. The design allows the user to increase the number of contacts without increasing the size of their connector. To meet reduced system size requirements, users can select smaller shell sizes without decreasing the number of contacts. Amphenol Aerospace qualified their connectors to the requirements of MIL-DTL-38999 making the HD38999 Connectors well-suited for applications such as avionics, C4I, commercial airframe, military vehicles, space, radar for ground and air, and missile and ordinance.

Types of Connectors

Change category view
Results: 48
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Amphenol Aerospace Circular MIL Spec Contacts MiniatureCylindrical Connector 8In Stock
Min.: 1
Mult.: 1

Amphenol Aerospace Standard Circular Connector 1P SZ 8 WALL MNT REC LESS CONTACTS 1In Stock
Min.: 1
Mult.: 1
Amphenol Aerospace Standard Circular Connector 4P SZ 21 JAM NUT REC LESS CONTACTS 24In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 42P SZ 25 JAM NUT REC LESS CONTACTS 2In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 8P SZ 25 STRAIGHT PLUG LESS CONTACTS 2In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 1P SZ 8 STRAIGHT PLUG LESS CONTACTS 3In Stock
4Expected 4/20/2026
Min.: 1
Mult.: 1
No


Amphenol Aerospace Circular MIL Spec Contacts QUADRAX CONTACT PIN 100 OHM 21In Stock
Min.: 1
Mult.: 1

Amphenol Aerospace Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR 12In Stock
Min.: 1
Mult.: 1

Amphenol Aerospace Standard Circular Connector 18P SZ 19 STRAIGHT PLUG LESS CONTACTS 11In Stock
10Expected 3/9/2026
Min.: 1
Mult.: 1
No
Amphenol Aerospace Circular MIL Spec Contacts MIL-DTL-38999 III QUADRAX SKT CONTACT 176In Stock
Min.: 1
Mult.: 1
Amphenol Aerospace Standard Circular Connector 42P SZ 25 STRAIGHT PLUG LESS CONTACTS 1In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Circular MIL Spec Contacts QUADRAX CONTACT SPLIT PAIR 1In Stock
Min.: 1
Mult.: 1

Amphenol Aerospace Standard Circular Connector 8P SZ 25 STRAIGHT PLUG LESS CONTACTS 1In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 8P SZ 25 WALL MOUNT REC LESS CONTACTS 2Stock Available
Min.: 10
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 2P SZ 17 STRAIGHT PLUG LESS CONTACTS 1Stock Available
No
Amphenol Aerospace Circular MIL Spec Contacts QUADRAX CONTACT PIN 26 AWG 150 OHM Lead-Time 13 Weeks
No
Amphenol Aerospace Circular MIL Spec Contacts QUADRAX CONTACT SKT 26 AWG 150 OHM Lead-Time 13 Weeks
No
Amphenol Aerospace Standard Circular Connector 39P SZ 17 STRAIGHT PLUG LESS CONTACTS Lead-Time 14 Weeks

Amphenol Aerospace Standard Circular Connector 4P SZ 21 STRAIGHT PLUG LESS CONTACTS N/A
No
Amphenol Aerospace Standard Circular Connector 39P SZ 17 WALL MOUNT REC LESS CONTACTS Non-Stocked

Amphenol Aerospace Standard Circular Connector 39P SZ 17 WALL MOUNT REC LESS CONTACTS N/A

Amphenol Aerospace Standard Circular Connector 39P SZ 17 STRAIGHT PLUG LESS CONTACTS Non-Stocked Lead-Time 9 Weeks
Min.: 10
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 6P SIZE 23 PIN TRI-START Non-Stocked Lead-Time 9 Weeks
Min.: 10
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 15P SZ 19 STRAIGHT PLUG LESS CONTACTS Non-Stocked Lead-Time 9 Weeks
Min.: 10
Mult.: 1
No
Amphenol Aerospace Standard Circular Connector 15P SZ 19 STRAIGHT PLUG LESS CONTACTS Lead-Time 9 Weeks
No