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D38999/24WH21SN

D38999/24WH21SN is a MIL-DTL-38999 Series III high-reliability circular connector receptacle with 21 #16 contacts and a jam-nut threaded coupling designed for harsh-environment electrical connections. It’s ideal for aerospace, military, and rugged industrial systems requiring durable, EMI-shielded electrical interfaces.

FeatureSpecification
Connector SpecificationMIL-DTL-D38999 Series III
Connector StyleJam Nut Receptacle
Shell SizeSize H
Insert LayoutH21
Insert Arrangement23-21
Number of Contacts21 × #16
Contact TypeSocket
Keying PositionN (Normal)
Temperature Rating-65°C to +175°C
Shell MaterialAluminum
Shell PlatingCadmium
Shell ColourOlive Drab
Category:

D38999/24WH21SN is a high-performance MIL-DTL-38999 Series III jam nut receptacle engineered for demanding, high-reliability cable assemblies in aerospace, military and other harsh environments. Designed to provide consistent performance under extreme conditions this connector features a jam nut receptacle configuration with a size H shell and H21 insert layout, accommodating 21 × #16 socket contacts in a 23-21 arrangement.

Constructed from Aluminum with a Olive Drab Cadmium plated shell, the connector offers exceptional corrosion resistance and mechanical durability. Its threaded coupling system ensures secure and vibration-resistant connection, while environmental sealing protects against moisture, dust, and other contaminants.

Rated for a wide temperature range from -65°C to +175°C, the D38999/24WH21SN is built to perform reliably in extreme cold and heat. This combination of rugged construction, secure coupling, and environmental protection makes it ideal for aerospace, defense, and other mission-critical cable assemblies.