X3 Precision-Machine One-Piece Threaded Backshells

Positronic X3 Precision-Machined One-Piece Threaded Backshells are designed for use with D-Sub connectors and circular M38999/AS85049 backshell accessories. These backshells deliver robust mechanical integrity and continuous 360° EMI shielding. The X3 threaded backshells are compatible with machined and stamped shells for standard, high, and mixed-density D-Sub connectors, including the Mach-D series. These backshells are available in six shell sizes with both standard and low-profile configurations. The X3 threaded backshells are housed in aluminum or stainless steel with multiple plating options and can be specified with fixed or rotating jackscrews. These backshells operate at -55°C to 125°C temperature range and are ideal for military, aero, spaceflight, and industrial applications.

Results: 24
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 Mfr.
Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Shell Size
Cable Entry Angle
Number of Cable Entries
Shell Material
Shell Plating
Number of Positions
Amphenol Positronic D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
7In Stock
Min.: 1
Mult.: 1

D-Sub Backshell 3 Straight 1 Entry Aluminum Nickel 25 Position
Amphenol Positronic D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
7In Stock
Min.: 1
Mult.: 1

D-Sub Backshell 3 Straight 1 Entry Aluminum Nickel 25 Position
Amphenol Positronic D-Sub Backshells 104Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 6 Straight 1 Entry Aluminum Nickel 104 Position
Amphenol Positronic D-Sub Backshells 104Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/18/2026
Min.: 1
Mult.: 1

D-Sub Backshell 6 Straight 1 Entry Aluminum Nickel 104 Position
Amphenol Positronic D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/6/2026
Min.: 1
Mult.: 1

D-Sub Backshell 6 Straight 1 Entry Aluminum Nickel 104 Position
Amphenol Positronic D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/6/2026
Min.: 1
Mult.: 1

D-Sub Backshell 6 Straight 1 Entry Aluminum Nickel 104 Position
Amphenol Positronic D-Sub Backshells 15Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/22/2026
Min.: 1
Mult.: 1

D-Sub Backshell 2 Straight 1 Entry Aluminum Nickel 15 Position
Amphenol Positronic D-Sub Backshells 15Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 2 Straight 1 Entry Aluminum Nickel 15 Position
Amphenol Positronic D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/25/2026
Min.: 1
Mult.: 1

D-Sub Backshell 2 Straight 1 Entry Aluminum Nickel 15 Position
Amphenol Positronic D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/24/2026
Min.: 1
Mult.: 1

D-Sub Backshell 2 Straight 1 Entry Aluminum Nickel 15 Position
Amphenol Positronic D-Sub Backshells 25Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/15/2026
Min.: 1
Mult.: 1

D-Sub Backshell 3 Straight 1 Entry Aluminum Nickel 25 Position
Amphenol Positronic D-Sub Backshells 25Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/18/2026
Min.: 1
Mult.: 1

D-Sub Backshell 3 Straight 1 Entry Aluminum Nickel 25 Position
Amphenol Positronic D-Sub Backshells 37Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 4 Straight 1 Entry Aluminum Nickel 37 Position
Amphenol Positronic D-Sub Backshells 37Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/13/2026
Min.: 1
Mult.: 1

D-Sub Backshell 4 Straight 1 Entry Aluminum Nickel 37 Position
Amphenol Positronic D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/13/2026
Min.: 1
Mult.: 1

D-Sub Backshell 4 Straight 1 Entry Aluminum Nickel 37 Position
Amphenol Positronic D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 4 Straight 1 Entry Aluminum Nickel 37 Position
Amphenol Positronic D-Sub Backshells 50Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/22/2026
Min.: 1
Mult.: 1

D-Sub Backshell 5 Straight 1 Entry Aluminum Nickel 50 Position
Amphenol Positronic D-Sub Backshells 50Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 5 Straight 1 Entry Aluminum Nickel 50 Position
Amphenol Positronic D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/21/2026
Min.: 1
Mult.: 1

D-Sub Backshell 5 Straight 1 Entry Aluminum Nickel 50 Position
Amphenol Positronic D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/5/2026
Min.: 1
Mult.: 1

D-Sub Backshell 5 Straight 1 Entry Aluminum Nickel 50 Position
Amphenol Positronic D-Sub Backshells 9Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/22/2026
Min.: 1
Mult.: 1

D-Sub Backshell 1 Straight 1 Entry Aluminum Nickel 9 Position
Amphenol Positronic D-Sub Backshells 9Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 9/18/2026
Min.: 1
Mult.: 1

D-Sub Backshell 1 Straight 1 Entry Aluminum Nickel 9 Position
Amphenol Positronic D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/13/2026
Min.: 1
Mult.: 1

D-Sub Backshell 1 Straight 1 Entry Aluminum Nickel 9 Position
Amphenol Positronic D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish
Datasheet
10Expected 10/13/2026
Min.: 1
Mult.: 1

D-Sub Backshell 1 Straight 1 Entry Aluminum Nickel 9 Position