ELCO
Hermaphrocon Connecting
System
1
ELCOELCO
FEATURES:
• Designed for mobile, transportable,
and semi-permanent military
communications facilities
(telephone, telegraph, teletype,
radio, etc.)
• High-reliability Hermaphrocon
connectors are designed for speedy,
foolproof interconnections under
extreme field conditions, are
impossible to mismate, even in the
dark
• Hermaphrocon plugs mate
interchangeably with both
receptacles and plugs, permitting
connection of either cable end to
any other cable end of distribution
box
• Redundant Hermaphrocon design
provides 104 contacts for 52 cable
conductors (52 pairs) assures circuit
continuity with up to 50% contact
damage (jumpers linking redundant
contact pairs are welded for
reliability)
• Rugged, waterproof Hermaphrocon
connectors resist wear and damage
caused by dragging on the ground
or through water, even without
covers
SPECIFICATIONS:
•PLUG, ELECTRICAL
U-185B/G CONNECTOR
• RECEPTACLE, ELECTRICAL
U-186C/G CONNECTOR
• RECEPTACLE, ELECTRICAL
U-187A/G CONNECTOR
• CONTACT ASSEMBLY,
ELECTRICAL MX-3227/G
(as applicable)
• HOUSINGS:
Die-cast aluminum alloy with
protective finish per MIL-F-14072
• GASKETS AND GLANDS:
Silicone rubber
• INSULATORS:
Fortron-PPS-Black
• INSULATION RESISTANCE:
1000 megohms, minimum
• CONTACTS:
Beryllium copper, gold plated
• CONTACT RESISTANCE:
7 milliohms, maximum
• IMMERSION:
per MIL-C-55074
• MOISTURE RESISTANCE:
per MIL-C-55074
• AIR LEAKAGE:
per MIL-C-55074
• VIBRATION:
per MIL-C-55074
• TEMPERATURE:
–65°F to 150°F
• OVERALL DIMENSIONS (approx.):
U-185B/G 2.437" x 2.750" x 13.125"
U-186C/G 3.500" x 4.000" x 6.375"
U-187A/G 2.375" x 3.125" x 6.375"
• MILITARY SPECIFICATION:
MIL-C-55074, MIL-STD-454
PART ELCO MILITARY DESCRIPTION
PART NUMBER PART NUMBER
ELCO
08 2260 0110 00 000 U-185B/G M-55074/1-01 HERMAPHROCONâ„¢ PLUG, cable type
HERMAPHROCONâ„¢ 08 2276 0110 00 000 U-186C/G M-55074/2-01 HERMAPHROCONâ„¢ RECEPTACLE, panel type
CONNECTORS 08 2263 0110 00 000 U-187A/G M-55074/3-01 HERMAPHROCONâ„¢ RECEPTACLE, panel type
08 2260 9010 00 000 MX-3227/G M-55074/4-01 HERMAPHROCONâ„¢ CONTACT ASSEMBLY
08 2264 0110 00 000 SIG. CORPS. DWG. # SHORT SPRING BINDING POST ASSEMBLY
SC-C-136011 with O-ring, flat washer, split washer and nut - White
BINDING
08 2264 0120 00 000 SIG. CORPS. DWG. # SHORT SPRING BINDING POST ASSEMBLY
POSTS
SC-C-136001 without hardware - White
08 2264 0130 00 000 SIG. CORPS. DWG. # LONG SPRING BINDING POST
SC-C-136001 with O-ring, flat washer, split washer and nut - White
08 2264 0121 00 000 SIG. CORPS. DWG. # LONG SPRING BINDING POST
SC-C-136001 without hardware - White
MIL-C-55074
Hermaphroconâ„¢Connecting System
Plug (Cable Connector)
Receptacle
U-185B/G
U-187A/G
MX-3227/G
U-186C/G Bottom Mount
Side Mount
Contact Assembly
Binding Post
ELCO P/N 08 2264 0130 00 000
MATERIAL: Brass, machined (terminal)
Nylon (housing)
SC-C-136011
2
ELCOELCO
MIL-C-55074
Hermaphroconâ„¢Connecting System
1. U-187A/G CONNECTOR
2. U-185B/G CONNECTOR
3. U/185 LOCKING CAM
4. U/187 LOCKING CAM
5. BINDING POST TERMINAL
6. PROTECTIVE COVERS
7. CABLE ASSEMBLY - NOT AVAILABLE
8. DISTRIBUTION BOX - NOT AVAILABLE
9. TELEPHONE CONNECTION - NOT AVAILABLE
10. U/185 - U/187 CONNECTION
11. DROP-LINE PANEL - NOT AVAILABLE
3
ELCOELCO
DESCRIPTION
The hermaphrocon connector has redundant
circuitry assuring signal continuity. For each wire
termination on the back of the connector, there are
two contact positions on the face of the connector
networked together. Hermaphrocon connectors are all
identical and mate at 180 degrees into each other.
FEATURES
Basic size of the connector:
Length: 4.75 inches
Width: 1.75 inches
Height: 1.15 inches
Weight: .26 lbs.
52 circuits per connector with 104 contact
positions. Circuit redundancy assures that a missing
or damaged contact in the pair will not cause the
connector to fail.
Identical male and female connectors mate 180
degrees into each other.
Cannot be mated improperly.
MX-3227/G
M55074/4-01 Hermaphroconâ„¢Connector
ELCO PART NUMBER
08 2260 9010 00 000
104 Position, 52 Circuit MX Contact Assembly
4
ELCOELCO
DESCRIPTION
The U-185B/G plug is a hermaphrocon connector
with a die cast aluminum shell. The U-185B/G plug is
attached to the cable assemblies and mate and
unmate to the receptacles or other plugs by a
mechanical locking cam mechanism.
FEATURES
Basic size of connector and housing:
Length: 13.13 inches
Width: 2.44 inches
Height: 2.75 inches
Weight: 2.20 lbs.
Hermaphrocon circuit redundancy assures that a
missing or damaged contact in the contact pair will
not cause the connector to fail.
Mating and unmating by the mechanical cam
mechanism on the connector housing also seals the
housings during assembly.
Cannot be mated improperly.
Cast aluminum housings.
U-185B/G
M55074/1-01 Hermaphrocon Plug
ELCO PART NUMBER
08 2260 0110 00 000
Hermaphrocon Connector and Housing
5
ELCOELCO
DESCRIPTION
The U-187A/G side mount receptacle is a
hermaphrocon connector with a die cast aluminum
shell. The U-187A/G receptacle is wired and mounted
to both distribution boxes and mate to the U-185B/G
plug by a mechanical locking cam mechanism.
FEATURES
Basic size of connector and housing:
Length: 6.38 inches
Width: 2.38 inches
Height: 3.13 inches
Weight: 1.84 lbs.
Hermaphrocon circuit redundancy assures that a
missing or damaged contact in the contact pair will
not cause the connector to fail.
Mating and unmating by the mechanical cam
mechanism on the connector housing also seals the
housings during assembly.
Cannot be mated improperly.
Cast aluminum housings.
U-187A/G
M55074/3-01 Hermaphrocon Receptacle
ELCO PART NUMBER
08 2263 0110 00 000
Hermaphrocon Connector and Housing
6
ELCOELCO
DESCRIPTION
The U-186C/G bottom mount receptacle is a
hermaphrocon connector with a die cast aluminum
shell. The U-186C/G receptacle is wired and mounted
at the bottom of a structure and mate to the
U-185B/G plug by a mechanical locking cam
mechanism.
FEATURES
Basic size of connector and housing:
Length: 4.00 inches
Width: 3.50 inches
Height: 6.38 inches
Weight: 1.84 lbs.
Hermaphrocon circuit redundancy assures that a
missing or damaged contact in the contact pair will
not cause the connector to fail.
Mating and unmating by the mechanical cam
mechanism on the connector housing also seals the
housings during assembly.
Cannot be mated improperly.
Cast aluminum housings.
U-186C/G
M55074/2-01 Hermaphrocon Receptacle
ELCO PART NUMBER
08 2276 0110 00 000
Hermaphrocon Connector and Housing
7
ELCOELCO
Continuity: 1 ohm maximum impedance.
Dielectric Strength: No adjacent contact shorts when a 1000 volt source is applied.
Insulation Resistance: 1000 megohms minimum when 1000 volt source is applied.
Air Leakage: No air leaks when 15 PSI air is applied to the connector for 1 minute.
Contact Resistance: 7 millivolt drop maximum measured at like wire connection positions with a 3 amp
source. Bulk resistance must be subtracted from the circuit resistance.
Immersion: Dielectric strength, insulation resistance following 16 hours of immersion at 3 feet.
Durability: Continuity, dielectric strength, insulation resistance, following 200 cycles of mating and unmating.
Shock Drop: Continuity, dielectric strength, and insulation resistance, air leakage, following 12 drops at 3 feet.
Vibration: Continuity, dielectric strength, and insulation resistance, air leakage, following vibration cycling.
High Humid./High Temp.: 10 megohm minimum insulation resistance following 5 days continuous exposure.
Temperature Cycling: Continuity, dielectric strength, and insulation resistance following extreme temperature
cycling.
Current Rating: 3 amps at 400 volts.
Operating Range: 150 degrees F to -65 degrees F.
General Specifications
MX-3227/G, U-185B/G, U-186C/G, U-187A/G
8
ELCOELCO
SC-C-136011
Binding Post Assembly
DESCRIPTION
Depress the cap and insert a stripped tinned wire
into the hole on top of the cap. When the cap is
released the locking cam grasps the wire end
ensuring a reliable connection.
FEATURES
Basic size of a binding post:
Diameter: 610 inches
Height: 1.95 inches
Quick wire connect and disconnect.
Wire connection is semi-permanent.
High reliability connection.
Easily mounted to a drop-line panel assembly.
SPECIFICATIONS
Durability: 200 compressions and relaxations minimum.
Holding Power: 10 pounds minimum pull following durability using a tinned 26 AWG wire.
ELCO PART NUMBER
08 2264 0130 00 000
1.625", White Housing, W/ Hardware
VARIANCES ELCO PART NUMBERS
08 2264 0110 00 000 1.454", White Housing, W/ Hardware
08 2264 0120 00 000 1.454", White Housing, W/O Hardware
08 2264 0121 00 000 1.625", White Housing, W/O Hardware
NOTICE: Specifications are subject to change without notice. Contact your nearest AVX Sales Office for the latest specifications. All statements, information and
data given herein are believed to be accurate and reliable, but are presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements or suggestions concerning possible use of our products are made without representation or warranty that any such use is free of patent infringement
and are not recommendations to infringe any patent. The user should not assume that all safety measures are indicated or that other measures may not be
required. Specifications are typical and may not apply to all applications.
S-HERMCS1M398-N
http://www.avxcorp.com
Contact:
USA
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Corporate Offices
Tel: 843-448-9411
FAX: 843-448-1943
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FAX: 360-699-8751
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FAX: 919-878-6462
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FAX: 905-564-9728
EUROPE
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European Headquarters
Tel: ++44 (0)1252 770000
FAX: ++44 (0)1252 770001
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Tel: ++33 (1) 69.18.46.00
FAX: ++33 (1) 69.28.73.87
AVX GmbH, Germany - AVX
Tel: ++49 (0) 8131 9004-0
FAX: ++49 (0) 8131 9004-44
AVX GmbH, Germany - Elco
Tel: ++49 (0) 2741 2990
FAX: ++49 (0) 2741 299133
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Tel: ++39 (0)2 665 00116
FAX: ++39 (0)2 614 2576
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Tel: ++420 (0)467 558340
FAX: ++420 (0)467 2844
ASIA-PACIFIC
AVX/Kyocera, Singapore
Asia-Pacific Headquarters
Tel: (65) 258-2833
FAX: (65) 350-4880
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Tel: (852) 2-363-3303
FAX: (852) 2-765-8185
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Tel: (82) 2-785-6504
FAX: (82) 2-784-5411
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Tel: (886) 2-2516-7010
FAX: (886) 2-2506-9774
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Tel: (86) 21-6249-0314-16
FAX: (86) 21-6249-0313
AVX/Kyocera, Malaysia
Tel: (60) 4-228-1190
FAX: (60) 4-228-1196
Elco, Japan
Tel: 045-943-2906
FAX: 045-943-2910
Kyocera, Japan
Tel: (81) 75-593-4518
FAX: (81) 75-502-2705