MIL-C-26500
C48 Series
Introduction
GENERAL DESCRIPTION
The C48 Series describes a family of connectors qualified to MIL-C-26500. While maintaining the MIL-C-26500
mating interface, this product has also been expanded to include qualifications to numerous Boeing specifications
to satisfy general purpose requirements and unique product challenges for shielding, environmental sealing,
fluid resistance, and vibration.
Design Features
A. Positive Location Captivated Insert
(Mechanical Interlock)
B. Insert Face Seal
C. Pin Contact, MIL-C-39029/31
D. Contact Pressuring Seal
E. Anti-Deflection Disc
F. Resilient Pin Insert
G. Insert Rim Seal
H. Dynamic “O” Ring Shell Seal
I. Five-Key Shell Polarization
J. Metal-to-Metal Shoulder
K. Bayonet or Threaded Coupling,
Permanent Captivation
L. Contact Retention Clip
M. Socket Contact, MIL-C-39029/32
N. Wire Sealing Risers
O. Grommet
The expanded Cinch C48 product family offers numerous product options qualified to Boeing high-performance
requirements and product solutions developed for alternate termination styles/low-profile packaging.
Product Description
Cinch Series
•
Threaded non-decoupling design
CN0966
•
High-vibration bayonet plug with
metal-to-metal bottoming shells
C0909
CN1020
•
Connectors for shell grounding /
shielding effectiveness, non-rotating
accessory teeth, and advanced
fluid-resistance elastometers
CN0966
CN0967
CN1020
CN1021
•
Firewall Conformance
CN0966
CN0967
•
Low-profile connectors crimp - removable contacts
CN0915
•
Low-profile connectors fixed contacts / alternate
termination styles
CN0942
CN0944
3-2
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C48 Series
Cinch Numbers
How to Order
C48-0 6 R 22-55 P 6-102
Series Designation
C48 --
Order Code (Deviations)
100 - Connector With Contacts & Cable Support
102 - Connector Less Cable Support With Contacts
105 - Connector Less Contacts With Cable Support
106 - Connector Less Contacts & Less Cable Support
See order codes for Boeing on page 3-14
Coupling Style
0 -- Threaded
1 -- Bayonet
Alternate Shell Positions
6, 7, 8, 9, 10 per table on page 3-4
(Omit for normal position)
Shell Style
0 -- Square Flange Receptacle
3 -- Single-Hole Mounting Receptacle
6 -- Straight Plug
Contact Style
P -- Pin
S -- Socket
Environmental Class
R -- Meets MIL-C-26500 (USAF)
3
Insert Arrangements
(See page 3-4)
Shell Size
8, 10, 12, 14, 16, 18, 20, 22, 24
Military Standard Part Numbers
You can use MS* as well as C48
Series part numbers when ordering
C48 Series connectors.
*MS part numbers are supplied less
cable support. If cable support is
desired, it must be ordered separately.
MS24266 R 22 T 55 P 6
Military Designation
MS24264 -- Square-Flange Receptacle
MS24265 -- Single-Hole Mounting Receptacle
MS24266 -- Straight Plug
Alternate Shell Positions
N, 6, 7, 8, 9, Y per table on page 3-4
Contact Style
P -- Pin
S -- Socket
Environmental Class
R -- Meets MIL-C-26500 (USAF)
Insert Arrangements
(See page 3-4)
Shell Size
8, 10, 12, 14, 16, 18, 20, 22, or 24
Coupling Style
T -- Threaded
B -- Bayonet
Part numbers for the contacts and assembly tools are listed on page 3-12.
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3-3
Inserts Available
C48 Series
(Showing Front Face
of Socket Inserts)
Shell
Size-12
Shell
Size-10
Shell
Size-8
(Y)
(Y)
(Y)
(Y)
(Y)
Shell
Size-16
Shell
Size-14
(Y)
(Y)
(Y)
Shell
Size-18
(Y)
3
Shell
Size-20
(Y)
(Y)
(Y)
(Y)
Shell
Size-22
(Y)
(Y)
Shell
Size-24
(Y)
(Y)
(Y)
Shell
Size-28
CN096X
CN102X
Series
Only
Alternate Shell Positions (Front face of receptacle shown)
NOTE: Alternate positions 6 through Y incorporate special shell polarizing
key and keyways. All inserts remain in the normal position.
For Connector Size
† = #1 shielded contact is interchangeable
with #12 power contact.
(Y) = Available in Boeing Insert Style.
For Connector Size 8 and 10 12, 14, 16, 18, 20, 22, 24, and 28
Positions
A
B
C
D
A
B
C
D
Normal (N) 105°
140° 215°
265°
105°
140°
215° 265°
6
102°
132° 248°
320°
18°
149°
192° 259°
7
80°
118° 230°
312°
92°
152°
222° 342°
8
35°
140° 205°
275°
84°
152°
204° 334°
9
64°
155° 234°
304°
24°
135°
199° 240°
10 or Y*
25°
115°
220°
270°
98°
152°
268°
338°
*Not available in Size 8 Connector. See individual part number systems.
3-4
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C48 Series
Plug Connectors
Threaded Coupling
C48-06RXX-XXXX
MS24266RXXTXXXX
BACC45FS1
3
1.345 (34.164)
Max.
Bayonet Coupling
C48-16RXX-XXXX
MS24266RXXBXXXX
BACC45FT1
1.345 (34.164)
Max.
Dimensions
Shell
Size
8
10
12
14
16
18
20
22
24
A. Dia.
in
mm
.328
8.331
.420 10.668
.580 14.732
.664 16.866
.769 19.533
.902 22.911
1.033 26.238
1.152 29.261
1.282 32.253
B. Dia.
in
mm
.437 11.100
.562 14.275
.750 19.050
.812 20.625
.938 23.825
1.062 26.975
1.182 30.023
1.312 33.325
1.432 36.373
C. Max.
in
mm
.776 19.712
.906 23.013
1.078 27.381
1.141 28.982
1.266 32.157
1.375 34.925
1.510 38.354
1.625 41.275
1.760 44.704
D. Thread
UNEF-2A
.437-28
.562-24
.750-20
.812-20
.937-20
1.062-18
1.187-18
1.312-18
1.437-18
1
Boeing Specifications, see page 3-14.
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3-5
C48 Series
Receptacle Connectors
Square Flange,
Threaded Coupling
C48-OORXX-XXXX
MS24264RXXTXXX
BACC45FM1
1.407 (35.738)
Max.
Square Flange,
Bayonet Coupling
C48-1ORXX-XXXX
MS24264RXXBXXX
BACC45FN1
1.407 (35.738)
Max.
3
Dimensions
Shell
Size
8
10
12
14
16
18
20
22
24
1
A
+.005 (.127)
in
mm
.812 20.625
.937 23.800
1.031 26.188
1.125 28.575
1.250 31.750
1.343 34.112
1.437 36.500
1.562 39.675
1.703 43.256
B
+.005 (.127)
in
mm
.594 15.088
.719 18.263
.812 20.625
.906 23.013
.969 24.613
1.062 26.975
1.156 29.363
1.250 31.750
1.375 34.925
C
Max. Dia.
in
mm
.125 3.175
.125 3.175
.125 3.175
.125 3.175
.125 3.175
.125 3.175
.125 3.175
.125 3.175
.154 3.912
D
Max.
in
mm
.561 14.250
.696 17.679
.875 22.225
.935 23.749
1.062 26.975
1.187 30.150
1.312 33.325
1.437 36.500
1.562 39.675
F
Max.
in
mm
.437 11.100
.562 14.275
.750 19.050
.812 20.625
.938 23.825
1.062 26.975
1.182 30.023
1.312 33.325
1.432 36.373
G
H
J
Thread
Thread
Min.
UNEF-2A UNEF-2A in
mm
.562-24 .437-28
.620 15.748
.687-24 .562-24
.748 18.999
.875-20 .750-20
.913 23.190
.937-20 .812-20
.980 24.892
1.062-18 .937-20 1.107 28.119
1.187-18 1.062-18 1.209 30.709
1.312-18 1.187-18 1.337 33.960
1.437-18 1.312-18 1.452 36.881
1.562-18 1.437-18 1.577 40.056
K
Min.
in
.447
.572
.760
.822
.948
1.072
1.192
1.322
1.442
= Boeing specifications, see page 3-14.
3-6
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mm
11.354
14.529
19.304
20.879
24.079
27.229
30.277
33.579
36.627
C48 Series
Receptacle
Connectors
Single-Hole Mount,
Threaded Coupling
C48-03RXX-XXXX
MS24265RXXTXXX
3
1.407 (35.738)
Max.
Single-Hole Mount,
Bayonet Coupling
C48-13RXX-XXXX
MS24265RXXBXXX
1.407 (35.738)
Max.
Dimensions
Shell
Size
A
B
C
D
E
G
H
J
K
+.005 (.127)
Max. Hex
+.003 (.076)
Max.
Max. Dia.
Max.
Thread
Thread
Thread
UNEF-2A
UNEF-2A
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
UNEF-2A
8
.979 24.867
.828 21.031
.593 15.062
1.068
27.127
.561 14.249
.437
11.100
.562-24
.625-20*
.437-28
10
1.104 28.042
.953 24.206
.718 18.237
1.192
30.277
.696 17.678
.562
14.275
.687-24
.750-20
.562-24
12
1.291 32.791
1.140 28.956
.905 22.987
1.380
35.052
.875 22.225
.750
19.050
.875-20
.937-20
.750-20
14
1.391 35.331
1.250 31.750
.968 24.587
1.505
38.227
.935 23.749
.812
20.625
.937-20
1.000-20
.812-20
16
1.516 38.506
1.329 33.757
1.093 27.762
1.630
41.402
1.062 26.975
.938
23.825
1.062-18
1.125-20*
.937-20
18
1.641 41.681
1.455 36.957
1.217 30.912
1.740
44.196
1.187 30.150
1.062
26.975
1.187-18
1.250-20*
1.062-18
20
1.766 44.856
1.642 41.707
1.342 34.087
1.860
47.244
1.312 33.325
1.182
30.023
1.312-18
1.375-18
1.187-18
22
1.954 49.632
1.705 43.307
1.467 37.262
2.040
51.816
1.437 36.500
1.312
33.325
1.437-18
1.500-20*
1.312-18
24
2.079 52.807
1.892 48.057
1.592 40.437
2.160
54.864
1.562 39.675
1.432
36.373
1.562-18
1.625-18
1.437-18
* Thread: UN-2A
NOTES:
Contact factory for information about Boeing specifications.
For mounting hole dimensions and jam nut torques, see page 3-20.
Call Toll Free: 1 (800) 323-9612
3-7
Mouser Electronics
Authorized Distributor
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C48-10R10-20P6-106 C48-10R10-20P7-102 C48-10R10-20P7-106 C48-10R10-20P8-102 C48-10R10-20P8-106
C48-10R10-20P9-102 C48-10R10-20P9-106 C48-10R10-5P6-102 C48-10R10-5P6-106 C48-10R10-5P7-102 C4810R10-5P7-106 C48-10R10-5P8-102 C48-10R10-5P8-106