INTERMATEABLE WITH SOURIAU CONNECTORS AND ALL
MIL-DTL-38999 SERIES III
Deustch/TE Connectivity ACT series MIL-DTL-38999 series III composite connectors offer high density contact arrangements in a miniature circular connector composed of composite materials. ACT connectors meet MIL-38999 and were originally designed as military and aerospace components. The Deutsch ACT series is now being used in many applications requiring extremely reliable interconnections. These Deutsch connectors are quick-mating, environmentally-sealed, triple-lead threaded, have a self-locking coupling, and are EMI-RFI-shielded. A variety of D38999 backshells are available. For full product details on the Deustch ACT series MIL-DTL-38999 series III composite connectors, please see the specifications below.
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 Tech Specs  Create P/N  Contacts & Tooling  Dimensions
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DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE FEATURES
- High reliability
- Outstanding EMI/RFI shielding protection
- High density
- Self-locking connector systems
- Mil-DTL-38999
- Scoop-proof contact protection
- Light-weight
DEUSTCH/TE CONNECTIVITY ACT SERIES MATERIALS & FINISHES
Shell Plating Electroless Nickel and Olive Drab Chromate over nickel
Contact Platings 50u" Gold Plated
Seals Fluorinated silicone based elastomer
DEUSTCH/TE CONNECTIVITY ACT SERIES ELECTRICAL DATA
Wire Range Sizes 12-28 AWG
Insulation Resistance 5000 Megaohms minimum at 77°F (25°C)
Contact Resistance of mated contacts end to end
Max. Current for test in AMPS
Potential Drop Millivolt at
77F (25C)
DEUSTCH/TE CONNECTIVITY ACT SERIES MECHANICAL
Operating Temperature J - Olive Drab Composite -65°C to +175°C (-85°F to +347°F)
M - Electroless Nickel Composite -65°C to +200°C (-85°F to +392°F)
Sealing Against sand, dust per MIL-STD-202 & ice resistance
Mating Life 1500 mating cycle with high mating cycle, 500 mating cycle with typical P and S contacts
Salt Spray 2000 hours per MIL-STD-1344A method 1001 condition C
Temp Durability J - Olive Drab Composite +175C (+347F)
M - Electroless Nickel Composite +200C (+392F)
Chemical Resistance Lubricating oils, hydraulic fluids, coolants, deicing fluids per MIL-STD-1344A Method 1016 condition a-1
Sine Vibration 60g at -55°C per MIL-DTL-38999L 4.5.23.2.1
Random Vibration 49.5 grms at ambient temperatures
EMI Shielding Effectiveness 100 MHz to 10 GHz - minimum attenuation of 50dB
Contact Type Crimp, fiber optic, coax, twinax, or printed circuit
Number of Circuits 2 to 128
Contact Insertion Rear Insertion/Rear Extraction with simple plastic or high quality metal hand tools.
Polarization Five keyways with optional master keyway rotations
Approvals (Note insert and main keyways remain fixed)
Retention Axial Load +/-10 percent Separation Force Minimum (initial)
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DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE APPLICATIONS
- High-performance military aircraft
- Commercial aircraft
- Communications equipment
- Armored personnel carriers & tanks
- High temperature industrial equipment
- Missiles
- Shipboard
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DEUSTCH/TE CONNECTIVITY ACT SERIES MILITARY PART NUMBER EXAMPLE
DEUSTCH/TE CONNECTIVITY ACT SERIES COMMERCIAL PART NUMBER EXAMPLE
Click here to download full pdf
STEP 1: SELECT SHELL STYLE, PLUG OR RECEPTACLE
D38999/20
ACT90
Flanged Receptacle D38999/24
ACT94
Jam Nut Receptacle
STEP 2: SELECT FINISH
Military:
M = Electroless Nickel
OR
J = Olive Drab Chromate over Cadmium Commercial:
M = Electroless Nickel
OR
W = Olive Drab Chromate over Cadmium
STEP 3: SELECT LAYOUT
* Coax
** Twinax
READ LESS
LAYOUTS BY NUMBER OF CONTACTS
10 - #20,
13 - #16,
4 - #12,
3 - #8
READ LESS
STEP 4: SELECT CONTACT
P = Pin
S = Socket
H = 1500-Cycle Pin contacts
J = 1500-Cycle Socket contacts
Note: See Step 6 if you are not ordering contacts with part.
A = Less Pin Contacts
B = Less Socket Contacts
May be used for special contact types (PC Pin, Thermocouple, Fiberoptic).
U - PCB Pin contacts
M - PCB PCB socket contacts
STEP 5: SELECT POLARIZATION
N = Normal (Standard)
A = Next Most Popular
B = Not Popular (Limited Availability)
C = Check for Availability
D = Check for Availability
E = Check for Availability Receptacle
 Plug
STEP 6: MODIFIER
 For other commercial modification, i.e., less tools, with PC contact or with endbell, call.
Omit for standard contacts LC = For use with standard contacts but supplied with contacts, seal plugs or tools. (P.O. must state Less Contacts.) Note: LC is not marked on parts.
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DEUSTCH/TE CONNECTIVITY ACT SERIES PIN CONTACT
Insert head first,
trim excess
Wire Insulation Sealing Range
DEUSTCH/TE CONNECTIVITY ACT SERIES SOCKET CONTACT
Insert head first,
trim excess
Wire Insulation Sealing Range
All dimensions in inches (millimeters in parentheses)
DEUSTCH/TE CONNECTIVITY ACT SERIES CONTACT TOOLS - PINS
Turret Head (locator) Color Insertion/
Extraction Tool
DEUSTCH/TE CONNECTIVITY ACT SERIES CONTACT TOOLS - SOCKETS
Turret Head (locator) Color Insertion/
Extraction Tool
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DEUTSCH/TE CONNECTIVITY ACT SERIES PLUG TYPE 26
Rear Metric Thread (Plated)
* Mass without contacts
DEUTSCH/TE CONNECTIVITY ACT SERIES TYPE 20 SQUARE FLANGE
Rear Metric Thread (Plated)
* Mass without contacts
DEUTSCH/TE CONNECTIVITY ACT SERIES TYPE 24 JAM-NUT
E +.004/-.028 (+0.1/-0.7) Rear Metric Thread (Plated)
* Mass without contacts
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DEUSTCH/TE CONNECTIVITY ACT SERIES DUMMY RECEPTACLES, DUST CAPS & PLUG CAPS
** - Select plating
J = Composite Olive Drab over Chromate
M = Composite Electroless Nickel
F = Aluminium Electroless Nickel
W = Aluminium Olive Drab over Chromate
## = Select code for ring or loop
N = Ring to attach to backshell as shown
R = Loop for screw mounting
DEUSTCH/TE CONNECTIVITY ACT SERIES CABLE CLAMPS
** = select plating
J = Composite Olive Drab over Chromate
M = Composite Electroless Nickel
T = Composite without plating
F = Aluminium Electroless Nickel
W = Aluminium Olive Drab over Chromate
STANDARD MIL-SPEC ACCESSORIES - ALUMINUM
Heat Shrink Boot Adapters Designed for use with straight or right angle shrink boots. A knurled rear section with a boot groove provide an excellent surface for the boot to grab the metal endbell. Available with lock wire and drain holes. See Heat Shrink Boots on (((pages 258-260))). Extender Backshell with cable clamp Non-environmental, designed for use with jacketed cable, allows extra space to break out the wires and still provide stain relief clamping to the outside of the cable jacket. Environmental Shielded Endbell This EMI/RFI shielding environmentally sealing endbell features a standard style cable clamp with gland seal at the end of and extender style backshell. Non-Environmental Shielded Endbell This EMI/RFI shielding non-environmentally sealing endbell features a standard style cable clamp.
M85049/88
M85049/89
M85049/88
Banding adapters utilize a band of metal that fastens and grounds cable shields to the outside of endbells. This method of terminating shields has advantages in that they typically use tools to tighten trim the bands. These tools make the termination tight, repeatable, reworkable (if you make a mistake just cut the band off and start again) and facilitates service. Banding adapters help lower the total applied cost by having simpler designs that have fewer parts with uncomplicated assembly procedures. Wire Seal Compression Nut
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DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE WIRE STRIPPING
Strip insulation from end of wire to be crimped. (See table for proper stripping dimensions.)
Do not cut or damage wire strands.
All dimensions in inches (millimeters in parentheses)
DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE CONTACT CRIMPING
Correct
Incorrect
STEP 1: Insert wire into rear of contact. Wire insulation must press against rear of contact. Wire must be visible through inspection hole.
STEP 2: M22520 series crimp tool and locator is recommended. See Contact and Tool Table for choice of turret head and selection setting according to contact size, part number and wire gauge size.
STEP 3: Insert contact and wire into tool jaws. To crimp, squeeze handles together fully until ratchet releases and allows handles to expand; otherwise, contact cannot be extracted from tool jaws. Maintain slight insertion pressure on wire while crimping contact to wire.
DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE CONTACT INSERTION
STEP 1: Remove hardware from plug or receptacle and slip over wire bundle in proper order for reassembly.
STEP 2: Using proper plastic or metal insertion tool for corresponding contact, position wire in tip of the tool so that the tool tip presses against the contact shoulder.
STEP 3: Press tool against contact shoulder and, with firm and even pressure, insert wired contact and tool tip into center contact cavity.
STEP 4: When contact bottoms, a slight “click” can be heard as tines of metal retaining clip snap into place behind contact shoulder.
STEP 5: Remove tool and pull back lightly on wire to make sure contact is properly seated. Repeat operation with remainder of contacts to be inserted, beginning with the center cavity and working outward in alternating rows.
STEP 6: After all contacts are inserted, fill any empty cavities with wire sealing plugs. Reassemble plug or receptacle hardware.
DEUSTCH/TE CONNECTIVITY ACT SERIES MIL-DTL-38999 SERIES III COMPOSITE CONTACT EXTRACTION
STEP 1: Remove hardware from plug or receptacle and slide hardware back along wire bundle. STEP 2: Using plastic or metal extraction tool with proper color code corresponding to contact size, place wire in tool. STEP 3: Insert tool into contact cavity until tool tip bottoms against the contact shoulder, expanding clip retaining tines.
STEP 4: Hold wire firmly in tool and extract wired contact and tool. Repeat operation for all contacts to be extracted. STEP 5: Fill any empty cavities with wire sealing plugs. Reassemble plug or receptacle hardware.
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