MIL-C-5015 Connectors
ITT Cannon is the foremost manufacturer of MS and
MS type connectors with the widest range of
connector styles, sizes and variations in the indus-
try. These connectors utilize the finest materials,
which, along with precision manufacturing and rigid
quality control, assure ITT Cannon customers of the
finest quality connectors.
These circular connectors were originally designed
for aircraft, but are now widely used in many other
fields. They are particularly suitable for commercial
applications requiring low cost and high reliability.
MS-E/F/R/ER
ENVIRONMENTAL RESISTANT MS-E, MS-F,
MS-R AND F80 (Solder/Crimp Termination)
MS-E, MS-F and MS-R are similar to MS-A and
MS-B connectors but have resilient insulators and
wire sealing grommets for extreme environmental
conditions and high altitude sealing. MS-E's and
MS-F's have a mechanical cable clamp; the MS-R
has a shorter, lighter weight endbell without the
cable clamp. Both the MS-F and MS-R have 0 rings
to supplement the interfacial seal. Shells are alumi-
num alloy. Contacts are siliver plated copper alloy.
The F80 modification (crimp contact termination) is
available in E, R, F and BFR styles with resilient
insulators.
POTTING ER CONNECTORS (Solder Contact
Termination)
These lightweight potting connectors provide re-
sistance to salt water, fuels, etc., and will with-
stand the effects of high vibration. 3100 and 3106
connectors with plastic potting cups and resilient
inserts meet the requirements of MS3103 and
MS25183. Contacts are silver plated copper or
brass. ER insulators are resilient; shells are alumi-
num alloy. A 90˚ plug (3108ER) is also available.
ACCESSORIES
Accessories to fit MS connectors include junction
shells, protective caps, dummy or stowage recepta-
cles, cable clamps, telescoping bushings.
How to Order
In the latest revision of MIL-C-5015, a new class of
environment-resistant connectors was added. This
new class F connector supersedes the previous
class E connector. The MS3106F is identical to the
MS3106E except that the MS3106F has an "0"
ring under the coupling nut. The class E will still be
available upon request for exitsting programs, and
upon ordering will also bear the E nomenclature on
the shell.
MS-F and MS-R connectors are designed to operate
in the extreme environmental conditions of high
altitude filight and must be completely sealed to
withstand moisture, condensation, vibration, corona
and flashover caused by high altitude environments.
They have resilient grommet with internal restric-
tions in the wire cavities which act as 0 rings
around the wires. This allows the wires to slide thru
the grommet with a minimum of friction, yet when
the ferrule is seated and the endbell tightened it
provides a perfect wire seal thru a wide variety of
wire diameters. This seal at the rear, plus the
interfacial seal at the front, effects a completely
environment-resistant asssembly when the plug is
mated to and F or R receptacle. Sockets are of the
closed-entry type.
The temperature range for this connector is -55˚C
(-67˚F) to +125˚C (+257˚F) and meets the
requirements of MIL-C-5015.
The F80 modification (crimp contact termination) is
avialable in resilient insulators in the E, R, F, and
BFR styles, creating a large selection of insert
assemblies and hardware. Components are identical
to the MS-5015 except that the contacts are
modified for crimp termination providing and in-
expensive crimp contact connector with the proven
reliability of and complete intermateability with the
MS-5015 series. See page 187 for assembly in-
structions. Cable clamps have been integrally de-
signed with the endbell on MS-E and MS-F connec-
tors. Class R is without the cable clamp.
CA
MS
PREFIX
SHELL STYLE
CLASS
SHELL SIZE
CONTACT ARRANGEMENT
CONTACT TYPE
ALTERNATE INSERT POSITION
MODIFICATION CODE
PREFIX
MS - Conforms to latest MIL-C-5015 revision
CA - Cannon designation (for any modification)
SHELL STYLE
3100 - Wall mounting receptacle
3101 - Cable connecting plug
3102 - Box mounting receptacle
* 3106 - Straight plug
3108 - 90˚ angle plug
CLASS
E/F - Environmental with resilient insulators
and integral cable clamp.
R - Environmental with resilient insualtors
and shortened light weight endbell; also
additional sealing with 0 ring seal under
coupling nut in styles 3106 and 3108
*
When ordering MS3106F to the Cannon part number, designate
CA06R. See pages 177 and 181.
3106
3106
R 20 - 27 P W
R 20 - 27 P W
*
-
SHELL SIZE
Coupling thread diameter in sixteenths of an inch
CONTACT ARRANGEMENTs
See pages 171-174
CONTACT TYPE
P for Pin; S for Socket
ALTERNATE INSERT POSITION
W, X, Y and Z (omit for "Normal")
MODIFICATION CODE
(applies to CA numbers only, not MS)
F80 - Crimp type contacts. See page 187 for
assembly instructions.
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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MIL-C-5015 Connectors
Performance and Material Specifications
MATERIALS AND FINISHES
Shell
Material
Finish
Insulator
Contacts
Material
Material
Finish
Termination
Aluminum alloy
O.D. Chromate coating
over cadmium plating
Polychloroprene (resilient)
Brass or copper alloy
Silver plate
Tinned solder pot
MS-E/F/R/ER
CONTACTS
Pin and socket contacts are designed to resist severe vibration and repeated connection and disconnection.
The average force to either engage or separate pin and socket contacts will not exceed the average values
given in the latest revision of MIL-C-5015.
FORCE
In lbs.
Maximum
Average
Minimum
16
3.00
2.10
.25
12
5.00
3.50
.50
Contact Sizes
8
10.00
7.00
.75
4
15.00
10.50
1.00
0
20.00
14.00
2.00
WIRING
For class E, R and F connectors, satisfactory mois-
ture sealing will be obtained if AWG and MS wire
sizes and insulation outside diameters are governed
by this table.
Contact
Wire Size
Size
(MIL-W-5086)
16
12
8
4
0
16 thru 20
12 thru 14
8 thru 10
4 thru 6
0 thru 2
Insulation OD Limit
(inches)
.064 (1.63) min. to .130 (3.30) max.
.114 (2.90) min. to .170 (4.32) max.
.164 (4.17) min. to .255 (6.48) max.
.275 (6.98) min. to .370 (9.40) max.
.415 (10.54) min. to .550 (13.97) max.
THERMOCOUPLE CONTACTS
Sizes 12 and 16 contacts, machined from matching thermocouple lead wire alloys, can be supplied in
ITT Cannon connectors. These thermocouple contacs maintain continuity from thermal-sensor leads thru a
bulkhead of other closures in temperature measuring applications.
These contacts for matching lead wires are detailed by the standards of the Instrument Society of America
(I.S.A);
I.S.A Standards
J and Y
K
T
Material
Iron and constantan
Chromel and alumel
Copper and constantan
ELECTRICAL SERVICE DATA
Test current ratings of contacts and allowable
voltage drop under test conditions when assembled
as in service are shown below. Maximum total
current to be carried per connector is the same as
the allowable in wire bundles as specified in MIL-
W-5088.
Contact Size
16
12
8
4
0
Test Current
(amps)
13
23
46
80
150
Potential Drop
(millivolts)
49
42
26
23
21
Since the thermocouple connector applications determines the soldering methods and materials to be used,
thermocouple contacts, identified by permanent markings, are normally supplied with untinned solder pots.
Thermocouple contacts are supplied only in connectors having resilient insulators.
HIGH POTENTIAL TEST VOLTAGE
MS connectors show no evidence of breakdown when the test voltage given below is applied between the
two closest contacts and between the shell and the contacts closest to the shell for a period of one minute.
MS
Service
Rating
Inst.
A
D
E
B
C
Test
Voltage
(RMS]
60 cps
1000
2000
2800
3500
4500
7000
Suggested *
Operating Voltages
DC
AC (rms)
250
700
1250
1750
2450
4200
200
500
900
1250
1750
3000
1/16
1/8
3/16
1/4
5/16
Air
Spacing
Nom.
(inches)
Creepage
Distance
Nom.
(inches)
1/16
1/8
3/16
1/4
5/16
1
* As indicated in previous MS Specification and to be used by designer only as a guide.
High Voltage Cartridges for MS-E and MS-R (HV310*E/R Series)
High voltage conductors as well as power and/or
control signal conductors can now be connected
simultaneously in standard MS connectors. Previ-
ously, MS connectors involved in high voltage cir-
cuitry required individual design considerations and
could only be ordered as a "special." The new high
voltage cartridge allows conversion of a standard
connectors to one capable of handling up to 15,000
volts DC (Test Voltage - mated), operating voltage
- See level 5,000 VDC or 3,500 VAC. These
cartridges are molded of nylon and provide as high
degree of arc-over protection between adjacent
contacts or between a contact and the connector
shell. Unmated, each cartridge provides a nylon
isolating barrier capable of withstanding up to
10,000 volts DC (or peak).
The contact within the cartridge is a 7.5 amp. size
20, crimp snap-in type with dielectric rear release
clip retention. This contact is removable with the
plastic CIET20 insertion/extraction tool provided
the insulation is .084 (22.45) or less. The contact
may be crimped with the standard MS-3191 tool
and MS-3191-20A locator and hand inserted into
the nylon cartridge. The cartridge body is installed
in the connector at the factory.
High voltage cartridges now available fit the space
normally occupied by a #4 o #8 size contact in an
MS-E, MS-R or MS-F type connector.
Over forty-nine contact arrangements are currently
available in which these high voltage cartridges may
be used. Contsult factory for ordering information.
•
•
•
Standard contact arrangements are adaptable to
high voltage applications.
Eliminates need for a separate high voltage
connector.
Assembly time is reduced.
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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