97 series
special purpose connectors
Potting (438 Construction)
Potting constructions actually exceed the Type “E” requirements of
military specifications for moisture-proof connectors. These con-
structions replace the back shell completely with a lightweight
threaded retainer ring permanently staked to the shell.
To seal the back of the connector, potting compound is injected into
an expendable polyethylene potting form and allowed to cure or
set. When the form is removed, the resilient hemispherical shaped
insulation extends well into the connector. It forms a chemical bond
to the inner and outer walls of the plug, to the back of the insert,
around the soldered connections and well out along the leads.
Not only is the back shell eliminated, but also the cable clamp. The
solder joints are completely and individually protected by the resil-
ient mass which surrounds them and resists transmittal of vibration
to the soldered connections. The completed assembly is not only
moisture-proof, but also pressurized and resistant to salt water, air-
craft lubricating oil and jet fuels.
Expendable Potting Forms
For companies not using their own potting molds, expendable poly-
ethylene forms can be provided. These expendable forms need no
treatment before use. Though designed to be discarded, they can
be left on assemblies after potting. Nylon potting forms to be left
permanently on the assembly are also available. These forms are
supplied with construction (824) and (871).
How to Order
To order connectors in constructions for potting, use the standard
MS nomenclature (MS3100A, MS3101A, and MS3106A construc-
tions are available), but substitute “97” for “MS”, drop the “A” suffix
for type of back shell, and add the application deviation (XXX) as
shown on the chart. Example: 97-3106-28-16S (438).
Deviation
Explanation
Shell Styles
438
Modified “MS”, for potting where back shell is replaced
by threaded retainer ring. A type “W” washer is included
under 3106 coupling ring. (Boot is not included).
Consists of (438) construction with 9755-255-XX
expendable poly potting form, and type “W” washer.
Connectors are marked “97-310X-XX-XX(541).”
Consists of (438) construction plus nylon potting form
and type “W” washer; bagged, marked MS25183.
Consists of (517) construction plus nylon potting form
and type “W” washer; marked MS25183A.
Consists of (438) construction with 9755-271-XX nylon
potting form, and type “W” washer; bagged. Connectors
are marked “97-310X-XX-XX(871).”
3100
3101
3106
3107
541
3100
3101
3106
3107
824
3106
826
3106
871
3100
3101
3106
3107
30
97 series
special purpose connectors
Box Type Plugs
(97-5105 construction)
Mounts directly on box or housing. For direct
connection of two pieces of equipment with-
out interconnecting wires. Available in all
sizes; male or female inserts. To order, com-
plete part number (97-5105) by adding
proper insert number.
Example: 97-5105-28-20S. To prevent con-
nector from rotating: Order deviation 205
(single stake, with swivel ring pinned) or 206
(double staking, with both swivel plate and
swivel ring pinned).
Example: 97-5105-28-20S (205) or 97-5105-
28-20S (206).
R
S
R
S
Q
Z
Mounting
Holes
K
L
Connector
Size
K
Inch
mm
Inch
L
mm
Inch
Q
mm
Inch
R
mm
Inch
S
mm
Z
Mounting
Threads
8S
10S
12S
12
14S
14
16S
16
18
20
22
24
28
1/8
1/8
5/32
5/32
5/32
5/32
5/32
5/32
5/32
3/16
3/16
3/16
3/16
3.18
3.18
3.96
3.96
3.96
3.96
3.96
3.96
3.96
4.75
4.75
4.75
4.75
7/8
7/8
31/32
1-3/8
31/32
1-3/8
31/32
22.23 3/4
22.23 7/8
24.59 1
34.93 1
24.59 1-1/8
34.93 1-1/8
24.59 1-1/4
19.05
22.23
25.40
25.40
28.56
28.56
31.75
31.75
9/16
9/16
13/16
13/16
13/16
13/16
1
1
1
1-1/4
1-1/4
1-9/16
1-9/16
14.27
14.27
20.62
20.62
20.62
20.62
25.40
25.40
25.40
31.75
31.75
39.67
39.67
25/32
25/32
1-1/16
1-1/16
1-1/16
1-1/16
1-5/16
1-5/16
1-5/16
1-5/8
1-5/8
2
2
19.84
19.84
26.97
26.97
26.97
26.97
33.32
33.32
33.32
41.28
41.28
50.80
50.80
4-36
4-36
4-36
4-36
4-36
4-36
6-32
6-32
6-32
10-24
10-24
10-24
10-24
1-13/32 35.71 1-1/4
1-13/32 35.71 1-11/32 34.11
1-13/32 35.71 1-15/32 37.29
1-13/32 35.71 1-19/32 40.46
1-13/32 35.71 1-23/32 43.64
1-13/32 35.71 1-31/32 49.99
Small Flange Receptacle
Small flange, (115) construction, receptacles
are available in sizes 12S and 14S with pin
or socket inserts and in size 10SL with pin
contacts only.
To order, complete part number (97-3102)
by adding proper insert and construction
numbers; 97-3102A12S-4S (115).
L
M
S
R
N
R
S
K
A
.120 DIA
Connector
Size
A
Coupling
Threads
K Ref.
Inch
mm
Inch
L Max.
mm
Inch
M Ref.
mm
Inch
N Ref.
mm
Inch
R Ref.
mm
Inch
S Ref.
mm
10SL
12S
14S
5/8-24
3/4-20
7/8-20
5/64
3/32
3/32
1.98
2.36
2.36
61/64
7/8
7/8
24.21
21.41
21.41
9/16
9/16
9/16
14.27
14.27
14.27
5/8
5/8
23/32
15.88
15.88
18.24
.625
.664
.730
15.88
16.87
18.54
13/16
7/8
15/16
20.62
22.23
23.80
31
MEMS sensors
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