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Quick Connection Circular Connector Cable Assembly MIL-DTL-38999 Series III D38999/20WC35PN

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City: Nanjing
Province/State: Jiangsu
Country/Region: China
Tel: 86-025-52862181

Quick Connection Circular Connector Cable Assembly MIL-DTL-38999 Series III D38999/20WC35PN

Brand Name : KAIDA
Model Number : D38999/20WC35PN
Certification : AS9100, Military Standard System Certification
Place of Origin : Nanjing
MOQ : 100pcs
Price : USD 10-50 $
Payment Terms : T/T, Western Union
Supply Ability : 1000pcs per week
Delivery Time : 10 days
Packaging Details : Standard packing
Material : Aluminium alloy
Plating : Cadmium
Endurance : 500 Cycles
Contacts : Crimp
Salt spray test : 500hours
Usage scenario : Light weight, high reliability,Signal transmission, anti-corrosion
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Datasheet download:

MIL-DTL-38999 Series III Connectors.pdf

MIL-DTL-38999 backshell.pdf

MIL-DTL-38999 Series III Circular Connector. D38999/20WC35PN Signal transmission, Light weight, high reliability,

Part number:D38999/20WC35PN

This series of round connectors, compliant with MIL-DTL-38999 III series requirements, adopt Triple-start threaded quick connection, with an anti-loose mechanism, featuring small size, light weight, high-density contacts, EMI/RFI shielding, removable crimp contacts, and anti oblique-mating;

This product has a fireproof shell, a variety of coatings, and vibration performance of high strength under high temperature, suitable for use in harsh sandstorm and damp circumstances.

With quick connection, anti-loose mechanism, EMI/RFI shielding, interface sealing, anti oblique-mating design, the material of shell is optional in aluminum-alloy, naval brass, stainless steel or composite.

Basic series
Type of connector
20 = Square flange receptacle
24 = Jam nut receptacle
26 = Shielding plug
W = Olive green cadmium plating
F = Electroless nickel plating
T = Marine Bronze (copper aluminium alloy)

K = Stainless steel passivated

L = Black anodized

J = Composite material + W

M = Composite material + F

Shell size
09 (A), 11 (B), 13 (C), 15 (D), 17 (E), 19 (F), 21 (G), 23 (H), 25 (J)
Contact layout (See below)
Type of contact
P = Crimp pin
S = Crimp socket
PL = Long PCB pin
PC = Short PCB pin
SL = Long PCB socket
SC = Short PCB socket
N = Normal
A, B, C, D = Alternative


Contact resistance and current rating:

Contact IDDiameter (mm)Resistance (mΩ)Current (A)
22D#Φ 0.76≤ 12.05.0
20#Φ 1.00≤ 5.07.5
16#Φ 1.60≤ 2.513.0
12#Φ 2.40≤ 1.523.0
10#Φ 3.15≤ 1.040.0

EMI shielding:

At 1GHz: minimum attenuation 85dB (F and W)

At 10GHz: minimum attenuation 65dB (F)

At 10GHz: minimum attenuation 50dB (W)

Withstanding voltage (V):

Service ratingMIIIN
Sea level1300180023001000

Insulation resistance:

Normal ≥ 5000 MΩ, damp heat ≥ 100 MΩ

Electrical continuity between shells:

W class ≤ 2.5 mΩ, F class ≤ 1.0 mΩ, K class ≤ 5.0 mΩ


Shell: Aluminum alloy, stainless steel or copper-alloy


W class: Olive green cadmium plating

K class: Stainless steel passivated

F class: Electroless nickel plating

Insulator: Thermo-set plastic

Grommet and seal: Silicon rubber

Contact: Copper alloy with gold plated

Endurance: 500 cycles


Sine: 60g, with temperature cycling and simulated accessory (36 hours)

Random: 44.1 grms in high temperature

49.5 grms in ambient temperature

Shock: At 3 ms half sinusoid, peak value of acceleration: 300g

Contact retention:

22D#, 45N 20#, 67N 16#, 111N 12#, 111N 10#, 111N 8#, 111N


Operating temperature:

W class: -65 oC ~ +175 oC J class: -65 oC ~ +175 oC M class: -65 oC ~ +200 oC

K, F class: -65 oC ~ +200 oC

Salt spray: according to method from MIL-DTL-38999

F class: 48h W class: 500h K class: 1000h

Salt spray: According to method from MIL-DTL-38999 2000h

Seal: Comply with the request of MIL-DTL-38999K low-pressure immersion.

Damp heat: 10 cycles in 24 hours according to MIL-DTL-38999K

Fluid resistant: Various fuels, coolant and solvent

Product Tags:

mil 38999 circular connectors


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Quick Connection Circular Connector Cable Assembly MIL-DTL-38999 Series III D38999/20WC35PN Images

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