Cannon
Mil-DTL 38999
Class G Space Grade Connectors
Interconnect Solutions
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Mil-DTL 38999 Class G Space Grade Series Connectors
The Challenge
Our traditional and longest served Space System customers approached ITT ICS regarding the deployment of Mil-DTL 38999 class G connec-
tors meeting the Thermal Vacuum Outgassing requirements of Mil-DTL 38999. These requirements mandated “all non-metalic materials shall
not release greater than 1.0% total mass loss (TML) and 0.1% collected condensable material (CVCM)." These customers new that ITT ICS
historically manufactured highly capable space grade connectors but never qualified them to Mil-DTL 38999. Specific materials used in the
manufacture of Cannon Mil-DTL 38999 connectors disqualified the products from the class G requirements.
The ITT Solution …
Addressing the specifications of our customers, ITT ICS implemented a special potting and lubricant material to meet the TML and CVCM
requirements of Mil-DTL 38999. Cannon achieved outgassing of the connectors by baking at 350 degrees for 48 hours. These changes,
coupled with ICS Cannon's innovative and proven 38999 design, resulted in a low cost, Space Grade connector meeting the class G
requirements of Mil-DTL 38999.
Interfacial Seal:
Individual raised seal barriers around each
pin contact ensure contact seal integrity
Grommet:
Wire sealing rear grommet provides environ-
mental sealing against harsh environments
Peripheral Seal:
Seal around the connector interface to
minimize compression set when connectors
are mated
Scoop Proof:
Low profile contact design to prevent
damage during blind mating
Contact:
Closed entry select contact design to assist
contact mating
Contacts:
Standard Mil-C 39029 contacts MIL-1 81969
application tools provided
Shielding:
Superior EMI shielding provides protection
up to 65dB at 10 GhZ
Quality:
Superior quality product, reliable, low cost,
and military approved
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Mil-DTL 38999 Class G Space Grade Series Connectors
Technical Overview
Serving aviation markets since Cannon first introduced aircraft circular connectors in 1935, ICS's participation in aerospace and aviation
interconnects spans over 70 years. With its pioneering first products on the DC-1 aircraft, ITT ICS now expands it Mil-C 38999 product
offering to include Class G Space Grade connectors. Acknowledging our participation in the Mil-C 38999 market since 1971, ICS now
grows our traditional product offering with a full range of qualified, Class G connectors. These new KJ series connectors offer all of the
features and benefits of a government qualified product coupled with the time-tested assurance of Cannon quality, a product proudly
know as "Cannon Plugs" for over 95 years.
ITT ‘s Mil-DTL 38999 class G miniature connectors offer high density configurations designed and manufactured for high reliability and
vacuum conditions. These interconnects represent ideal solutions for military approved products specifying government required testing.
This series offers all the features of Mil-DTL 38999 while supporting a wide variety of layouts governed by the Military Standard 1560B.
Temperature Range -65 deg C (-85 deg F) to 200 deg C (392 deg F).
Contact Sizes 12 to 22D.
Wire Accomodations 12 to 28 AWG.
Durability 500 cycles of mating and unmating, 250 cycles for series II with spring fingers.
Coupling Series I and II Bayonet. Series III Threaded.
Corrosion Resistance 48 hours salt spray.
Vibration Sine- up to 60 G’s, series I & III at rated temperature.
Random- 43.7Grms at rated temp- series III, 49.5 Grms at ambient temp- series I & III,
43.7 Grms at ambient temp- series II.
EMI Shielding EMI leakage attenuation, greater than 90dB at 100 Mhz, greater than 65dB at 10 Ghz.
Shell to shell conductivity 1.0 millivolt max resistance.
Thermal Vacuum Outgassing Total mass loss 1.0%, collected volatile condensible material 0.1% max.
Mil-DTL 38999 Class G Performance Summary
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Mil-DTL 38999 Class G Space Grade Series Connectors
ITT Part Number Nomenclature to Mil-DTL 38999
SERIES I MILITARY NOMENCLATURE MS27467 G 17 F 35 S
MS SHELL STYLE
CLASS
SHELL SIZE
HARDWARE FINISH
CONTACT ARRANGEMENT
CONTACT STYLE
MS SHELL STYLE
MS27466 - Wall Mounting Receptacle
MS27467 - Grounded Plug
MS27468 - Jam Nut Receptacle
MS27505 - Box Mounting Receptacle
(back panel mounting, class E)
CLASS
G- Space Grade, Environmental Resistant
SHELL SIZE
9, 11, 13, 15, 17, 19, 21, 23, 25
HARDWARE FINISH
F - Electroless Nickel
CONTACT ARRANGEMENT
Refer to Mil Standard 1560
CONTACT STYLE
P - Pin Contact
S - Socket Contact
A - Less Pin Contact
B-Less Socket Contact
POLARIZATION
A, B, C, D (No letter required for normal)
SERIES II MILITARY NOMENCLATURE MS27473 G 16 F 35 S
MS SHELL STYLE
CLASS
SHELL SIZE
HARDWARE FINISH
CONTACT ARRANGEMENT
CONTACT STYLE
MS SHELL STYLE
MS27472 - Wall Mounting Receptacle
MS27473 - Straight Plug
MS27474 - Jam Nut Receptacle
MS27484 - Grounded Plug
MS27497 - Wall Mounting Receptacle
(back panel mounting)
CLASS
G- Space Grade, Environmental Resistant
SHELL SIZE
9, 11, 13, 15, 17, 19, 21, 23, 25
HARDWARE FINISH
F - Electroless Nickel
CONTACT ARRANGEMENT
Refer to Mil Standard 1560
CONTACT STYLE
P-Pin Contact
S-Socket Contact
A- Less Pin Contact
B-Less Socket Contact
POLARIZATION
A, B, C, D (No letter required for normal)
SERIES III MILITARY NOMENCLATURE D38999 26 GE35 SN
MS SHELL STYLE
CLASS
SHELL SIZE
HARDWARE FINISH
CONTACT ARRANGEMENT
CONTACT STYLE
POLARIZATION POSITION
MS SHELL STYLE
MS27466 - Wall Mounting Receptacle
MS27467 - Grounded Plug
MS27468 - Jam Nut Receptacle
MS27505 - Box Mounting Receptacle
(back panel mounting, class E)
CLASS
G- Space Grade, Environmental Resistant
SHELL SIZE
9, 11, 13, 15, 17, 19, 21, 23, 25
HARDWARE FINISH
F - Electroless Nickel
CONTACT ARRANGEMENT
Refer to Mil Standard 1560
CONTACT STYLE
P-Pin Contact
S-Socket Contact
A- Less Pin Contact
B-Less Socket Contact
POLARIZATION
N (normal), A, B, C, D, E
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Mil-DTL 38999 Class G Space Grade Series Connectors
Product Features
• Lightweight aluminum shells and copper alloy contacts
• Variety of layouts as described in Mil Standard 1560
• Offering the shell styles currently provided with
the standard product line
• Operating temperature of -65 deg C to 200 deg C
• Durability of 500 mating cycles
• Available in series I, II, and III
Benefits To Customers
• Low cost space grade connector system
• Proven track record for reliability and quality
• Military qualified
• Meets the performance requirements of Mil-DTL 38999
• High Density Requirements
• Distribution inventory position
• Standard M39029 contacts utilized
"Cannon Plugs," Your Historical Choice for Critical Space Applications
We understand the choices relevant to correctly specifying a Space Grade connector. When critiquing the market of available products, note
the one company with a record spanning over 95 years in the interconnect markets; ITT ICS Cannon. Proudly boasting participation on every
free world space mission, Cannon connectors have brought the universe to our doorstep through missions to the Moon, Mars, and beyond.
With unparalleled quality, innovative engineering excellence, and globally deployed manufacturing capabilities, ITT ICS welcomes your critical
space missions and provides an unequaled, qualified partnership to our Space customers.
Customer Support Locations
CHINA
Tuopandun Industrial Area, Jinda Cheng,
Xiner Village, Shajing Town,
Baoan District, Shenzhen City,
Guangdong, China 518125
phone: +86.755.2726.7238
fax: +86.755.2726.7515
GERMANY
Cannonstrasse 1
Weinstadt, 71384
phone: +49.7151.699.0
fax: +49.7151.699.217
FRANCE
15, Boulevard Robert Thiboust
Serris, France 77700
phone: +33.1.60.04.93.93
fax: +33.1.60.04.93.90
HONG KONG
Units 2405-6, 24/F, ING Tower
308 Des Voeux Road
Central Hong Kong
phone: +852.2732.2720
fax: +852.2732.2919
ITALY
Corso Europa 41/43
Lainate (MI), Italy 20020
phone: +39.02938721
fax: +39.0293872300
JAPAN
11-3, 5 Chome,Hibarigaoka, Zama-shi
Kanagawa, Japan 228-0003
phone: +81.462.57.2010
fax: +81.462.57.1680
UK
Jays Close, Viables Estate
Basingstoke, RG22 4BA
phone: +44.1256.311200
fax: +44.1256.323356
USA
666 East Dyer Road
Santa Ana, CA 92705
toll free: 1.800.854.3028
phone: +1.714.557.4700
fax: +1.714.628.2142
©2009 ITT Corporation. “Engineered for life” and “Cannon” are registered trademarks of
ITT Corporation. Specification and other data are based on information available at the
time of printing, and are subject to change without notice.
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