MIL-DTL-38999 connectors

D38999 Series iii

D38999 Series iii connectors

MIL-DTL-38999 connectors are high performance cable to panel interconnects that are suitable for military, aerospace and harsh environment applications. They are available with defined high density insert arrangements supporting up to 128 contacts across a variety of terminations within four main body and mating styles (series I, II, III and IV). See Style Variants below for information about 38999 series differences. NYKCS also supplies JN1003/VG96912 connectors known as "Series 1.5".

Mil 38999 connectors feature a number of Product Options covering shell sizes, couplings, contact termination options, body materials and platings. Consequently this series of circular connectors is suited to a very wide range of electronic, mechanical and environmentally demanding applications.

Please contact us for unbiased specialist advise. We can assemble Series III from Conesys to meet your specific requirements or supply from a number of our trusted OEM's including Amphenol. As a result NYKCS is able to source the best solution to meet your application and scheduling needs.

Amphenol Conesys CannonITTindustries Deutsch Glenair Sealtron TE

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D38999 2ZE06PA ConnectorD38999/20ZE06PA

  • Wall Mount Receptacle
  • Aluminium Shell
  • Black Zinc Nickel Finish
  • 6 Size 12 Contacts
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  • ‘A’ Keyway

D38999_24FF11SD ConnectorD38999/24FF11SD

  • Jam Nut Receptacle
  • Aluminium Shell
  • Electroless Nickel Finish
  • 11 Size 16 Contacts
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  • ‘D’ Keyway

D38999_26WD19SN ConnectorD38999/26WD19SN

  • RFI Grounding Plug
  • Aluminium Shell
  • Cadmium Olive Drab Finish
  • 19 Size 20 Contacts
  • Socket Contacts
  • ‘N’ Keyway

AS9100 value add assemblyConesys Value Add

24 hour turnaround

MIL-DTL-38999 III build to order

AS9120 approved

Compaero CPH461W-1303Compaero CPH461W-1303

  • Straight Backshell
  • Size 13
  • Cadmium Olive Drab Plating
  • Cable Entry 0.375”

Polamco 91SH3-19-12-1-ZBPolamco 91H3-19-12-1-ZB

(Compaero CPH461Y-1906)

  • 90 ° Backshell
  • Size 19
  • Green Zinc Cobalt Plating

Glenair 310HS001NF13Glenair 310HS001NF13

(Compaero CPH461W-1304)

  • Straight Backshell
  • Cadmium Olive Drab Plating
  • Cable Entry 0.491"
Compaero Polamco Glenair Backshells

38999 Style Variants

Series I

  • Description: Scoop-Proof 3-Point Bayonet Coupling
  • Coupling: Bayonet coupling; quick disconnect; positive locking, keyed
  • EMI Shielding: 40 dB minimum at 10 GHz
  • Mating Speed: 120° or 1/3 turn to full mate

Series II

  • Description: Low-Profile 3-Point Bayonet Coupling
  • Coupling: Bayonet coupling design, quick disconnect, captive, keyed
  • EMI Shielding: 40 dB minimum at 10 GHz
  • Mating Speed: 120° or 1/3 turn to full mate

Series III

  • Description: Scoop-Proof, Triple Start, Self-Locking
  • Coupling: Triple-start threaded coupling design, rapid advance, self-locking and full-mate indicator, keyed
  • EMI Shielding: EMI shielding to 65dB minimum at 10 GHz
  • Mating Speed: 360° or one full turn to full mate
  • Operating Temperature Range:
    • Classes F, K, S and BZ*: -65°C to +200°C (-85°F to +392°F)
    • Classes W, T, Z, BN* and ZC*: -65°C to +175°C (-85°F to +347°F)

Download: Datasheet MIL-DTL-38999, SERIES III Connectors

Series IV

  • Description: Scoop-Proof, Breech Lock
  • Coupling: Breech lock coupling design, rapid advance, self-locking, keyed
  • EMI Shielding: 65 dB minimum at 10 GHz. Grounding before engagement of contacts
  • Mating Speed: 90° or 1/4 turn to full mate

Series III. Value add assembly

Value Add Assembly 38999

Assembly facility for MIL-DTL-38999 Series III approved to AS9100. Contact us today for fast turnaround to your requirements.

Fast 24 hour turnaround available

Product Options

Couplings:MIL-DTL-38999 circular connectors

  • Tri-Start Threaded
  • Bayonet
  • Push-Pull
  • Rack & Panel Lanyard Release

Contacts:

  • Signal
  • Power Coax, Twinax, Quadrax
  • Crimp Removable
  • Hermetically Sealed
  • Fibre Optic Termini

Contact Arrangements:

  • as defined in MIL-STD-38999

Body Platings:

  • Cadmium Olive Drab
  • Zinc Cobalt
  • Electro-less Nickel
  • Black Zinc Nickel (RoHS compliant Military approved)

Special variants:

  • PCB Stand-offs
  • Grounding
  • First mate-last break earth contacts
  • EMI filtering
  • Hermetic sealing
  • Stainless Steel (for corrosion & wear resistance)
  • Aluminium Bronze (for corrosion resistance in saline environments)
  • Titanium (for weight saving especially in aerospace applications).

M39029 Contacts

m39029 circular onnector contactsDescription: Mil Spec contacts for MIL-DTL-38999 Series III Circular Connectors

Termination:

  • Crimp

Contact Material:

  • Copper alloy

Plating:

  • Gold

Identification:

  • Industry standard colour band or BIN identification

Related Products:

  • M39029 power contacts with reduced or expanded crimp barrels
  • Thermocouple contacts

Accessories, including:

  • Sealing Plugs
  • Contact Seal Boots
  • Dummy Contacts
  • Tools for crimping to wire or cable
  • Tools for insertion to and extraction from the connector body

Basic Identification Numbers (BIN#)

The three identification colour bands are marked around the contact at the wire barrel end and are positioned as follows:

  • Band 1 is closest to the wire entry point of the contact
  • Band 3 is closest to the mating end of the contact
  • Band 2 is between band 1 and 3

Original Equipment Manufacturers have the option of stamping the BIN# on the contact for size 16 and larger.

Basic Identification Numbers BIN
Backshells and Accessories

AS85049 backshells

Material Options:

  • Aluminium
  • Stainless Steel

Plating Options:

  • Cadmium Olive Drab over Electroless Nickel
  • Aluminium
  • Black Anodize
  • Electroless Nickel

Variants:

  • Straight or 90 degrees
  • Self-locking or non self-locking

More info - AS85049 backshells for d38999 connectors

Did you know?

There is an industry move away from the use of hazardous materials such as Cadmium, which is driven by the requirements of RoHS. For this reason mil spec d38999 connectors are available with Black Zinc Nickel plating. This conductive and non-reflective black finish is approved for 500 hrs salt spray endurance and is fast becoming the new defence industry standard.

Please contact us at NYK and we will advise and recommend alternative RoHS compliant products and their availability.

If you are interested in the history and development of MIL-DTL-38999 please read our article here.