Durable connectors featuring CINCH DEUY9P meeting MIL C 26500 and Boeing BACC45 BACC63 standards for industrial applications
Bel Cinch Omega Catalog: MIL-C-26500 C48 Series Connectors
Product Overview
The Bel Cinch Omega product series features connectors qualified to the MIL-C-26500 general purpose specification. This line has been expanded to include products qualified to numerous Boeing BACC45/BACC63 connector specifications. Utilizing the MIL-C-26500 mating interface, these high-performance connectors offer enhanced shielding, environmental sealing, fluid resistance, and vibration resistance. They are designed for networking, telecommunications, computing, military, aerospace, transportation, and broadcasting industries, with applications also extending to automotive, medical, and consumer electronics markets.
Product Attributes
- Brand: Bel / Cinch
- Series: Omega, C48
- Qualifications: MIL-C-26500, Boeing BACC45/BACC63
- Materials: Aluminum (options for stainless steel), Silicone/Fluorosilicone rubber, Glass-filled epoxy dielectric
- Finishes: Aluminum - anodize, optional electroless nickel / cadmium over nickel
- Coupling Styles: Bayonet, Threaded
- Contact Types: Crimp (front release), Optional fixed contacts (PC termination)
- Contact Sizes: 20, 16, 12 (Power); 12, 8 (Coax)
Technical Specifications
General Specifications
| Attribute | Specification |
|---|---|
| Environmental Class | R = Meets MIL-C-26500 (USAF) |
| Temperature Extremes | +200C / 392F to -55C / -65F |
| Ozone Resistance | 0.015% by volume |
| Temperature Life | Internal 238C for 1,000 hours |
| Moisture Resistance | 1,000 megohms minimum / MIL-STD-202, Method 106 |
| Thermal Shock | -55C (-67F) to 260C (500F) |
| Dielectric Strength | 1,500 volts VAC RMS |
| Insulation Resistance | 5,000 megohms minimum |
| Vibration (Std) | 20 gs; 12 hours (Sinusoidal) |
| Vibration (MMB / Self-lock) | 39.6 gs RMS, 48 hours (Random) |
| Vibration (50 g) | 50 gs |
| Durability (Threaded) | 200 mating cycles |
| Durability (Bayonet) | 500 mating cycles |
Current Rating (Test)
| Contact Size | Current Rating (D.C.) |
|---|---|
| Size 20 | 7.5 Amps |
| Size 16 | 13.0 Amps |
| Size 12 | 23.0 Amps |
Contact Retention
| Contact Size | Retention Force (Minimum) |
|---|---|
| Size 20 | 20 lb |
| Size 16 | 25 lb |
| Size 12 | 30 lb |
Part Numbering System (Example: C48 Series)
| Element | Description |
|---|---|
| Series Designation | C48 |
| Coupling Style | 0 = Threaded, 1 = Bayonet |
| Shell Style | 0 = Square flange receptacle, 3 = Single-hole mounting receptacle, 6 = Straight plug |
| Environmental Class | R = Meets MIL-C-26500 (USAF) |
| Shell Size | 8, 10, 12, 14, 16, 18, 20, 22, 24 |
| Alternate Shell Positions | 6, 7, 8, 9, 10 (See Table 1) |
| Contact Style | P = Pin, S = Socket |
| Insert Arrangements | See page 5 |
| Order Code | 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 |
Shell Keying (Normal Position)
| Connector Size | Position A | Position B | Position C | Position D |
|---|---|---|---|---|
| 8 and 10 | 105 | 140 | 215 | 140 |
| 12, 14, 16, 18, 20, 22, 24, 28 | 105 | 140 | 215 | 265 |
Insert Arrangements (Examples)
| Shell Size | Insert Arrangement |
|---|---|
| 8 | 2#20 contacts (Insert 8-2(Y)), 3#20 contacts (Insert 8-3(Y)) |
| 10 | 2#20 contacts (Insert 10-2(Y)), 2#16 contacts (Insert 10-20), 5#20 contacts (Insert 10-5(Y)) |
| 12 | 3#16 contacts (Insert 12-3), 12#20 contacts (Insert 12-12(Y)) |
| 14 | 2#16 contacts, 1#2 shielded contact (Insert 14-3), 4#12 contacts (Insert 14-4), 7#16 contacts, 9#20 contacts, 3#16 contact (Insert 14-12(Y)), 15#20 contacts (Insert 14-15(Y)) |
| 16 | 10#16 contacts (Insert 16-10), 24#20 contacts (Insert 16-24(Y)) |
| 18 | 8#12 contacts (Insert 18-8), 10#16 contacts, 1#2 shielded contact (Insert 18-11), 14#16 contacts, 31#20 contacts (Insert 18-31(Y)) |
| 20 | 16#16 contacts (Insert 20-16), 19#20 contacts, 6#12 contacts (Insert 20-25(Y)), 24#20 contacts, 4#12 contacts (Insert 20-28(Y)), 37#20 contacts, 2#16 contacts (Insert 20-39(Y)), 41#20 contacts (Insert 20-41(Y)) |
| 22 | 12#12 contacts (Insert 22-12), 19#16 contacts (Insert 22-19), 26#20 contacts, 6#12 contacts (Insert 22-32(Y)), 55#20 contacts (Insert 22-55(Y)), 27#20 contacts, 12#16 contacts (Insert 22-39(Y)) |
| 24 | 23#20 contacts (Insert 24-43(Y)), 2#12 contacts, 55#20 contacts (Insert 24-57(Y)), 61#20 contacts (Insert 24-61(Y)), 29#16 contacts (Insert 24-29), 30#16 contacts (Insert 24-30) |
| 28 | 42#16 contacts (Insert 28-42) |
Plug Connectors Dimensions (Example: Straight Plug, Threaded Coupling)
| Shell Size | A Diameter (in) | B Diameter (in) | C Maximum (in) | D Thread |
|---|---|---|---|---|
| 8 | 0.328 | 0.437 | 0.776 | 0.437-28 UNEF-2A |
| 10 | 0.420 | 0.562 | 0.906 | 0.562-24 UNEF-2A |
| 12 | 0.580 | 0.750 | 1.078 | 0.750-20 UNEF-2A |
| 14 | 0.664 | 0.812 | 1.141 | 0.812-20 UNEF-2A |
| 16 | 0.769 | 0.938 | 1.266 | 0.937-20 UNEF-2A |
| 18 | 0.902 | 1.062 | 1.375 | 1.062-18 UNEF-2A |
| 20 | 1.033 | 1.182 | 1.510 | 1.187-18 UNEF-2A |
| 22 | 1.152 | 1.312 | 1.625 | 1.312-18 UNEF-2A |
| 24 | 1.282 | 1.432 | 1.760 | 1.437-18 UNEF-2A |
Receptacle Connectors Dimensions (Example: Square Flange, Threaded Coupling)
| Shell Size | A (in) | B (in) | C (in) | D (in) | F (in) | G (in) | H Thread | J Thread | K (in) |
|---|---|---|---|---|---|---|---|---|---|
| 8 | 0.812 | 0.594 | 0.125 | 0.561 | 0.437 | 0.620 | 0.562-24 | 0.437-28 | 0.447 |
| 10 | 0.937 | 0.719 | 0.125 | 0.696 | 0.562 | 0.748 | 0.687-24 | 0.562-24 | 0.572 |
| 12 | 1.031 | 0.812 | 0.125 | 0.875 | 0.750 | 0.913 | 0.875-20 | 0.750-20 | 0.760 |
| 14 | 1.125 | 0.906 | 0.125 | 0.935 | 0.812 | 0.980 | 0.937-20 | 0.812-20 | 0.822 |
| 16 | 1.250 | 0.969 | 0.125 | 1.062 | 0.938 | 1.107 | 1.062-18 | 0.937-20 | 0.948 |
| 18 | 1.343 | 1.062 | 0.125 | 1.187 | 1.062 | 1.209 | 1.187-18 | 1.062-18 | 1.072 |
| 20 | 1.437 | 1.156 | 0.125 | 1.312 | 1.182 | 1.337 | 1.312-18 | 1.187-18 | 1.192 |
| 22 | 1.562 | 1.250 | 0.125 | 1.437 | 1.312 | 1.452 | 1.437-18 | 1.312-18 | 1.322 |
| 24 | 1.703 | 1.375 | 0.154 | 1.562 | 1.432 | 1.577 | 1.562-18 | 1.437-18 | 1.442 |
CN0915 Series (Limited Wiring Space Receptacle Connectors) Dimensions
| Shell Size | A (in) | B (in) | C (in) | D (in) | F (in) | G Thread |
|---|---|---|---|---|---|---|
| 8 | 0.812 | 0.594 | 0.121 | 0.561 | 0.497 | 0.562-24 UNEF-2A |
| 10 | 0.937 | 0.719 | 0.121 | 0.696 | 0.503 | 0.687-24 UNEF-2A |
| 12 | 1.031 | 0.812 | 0.121 | 0.875 | 0.745 | 0.875-20 UNEF-2A |
| 14 | 1.125 | 0.906 | 0.121 | 0.935 | 0.871 | 0.937-20 UNEF-2A |
| 16 | 1.150 | 0.969 | 0.121 | 1.062 | 0.995 | 1.062-18 UNEF-2A |
| 18 | 1.343 | 1.062 | 0.121 | 1.187 | 1.058 | 1.187-18 UNEF-2A |
| 20 | 1.437 | 1.156 | 0.121 | 1.312 | 1.184 | 1.312-18 UNEF-2A |
| 22 | 1.562 | 1.250 | 0.121 | 1.437 | 1.307 | 1.437-18 UNEF-2A |
| 24 | 1.703 | 1.375 | 0.154 | 1.562 | 1.432 | 1.562-18 UNEF-2A |
CN0942/CN0944 Series (Short Receptacle Connectors) Dimensions
| Shell Size | A (in) | B (in) | C (in) | D (in) | F (in) | J Thread | S (in) | T (in) |
|---|---|---|---|---|---|---|---|---|
| 8 | 0.984 | 0.828 | 1.068 | 0.561 | 0.625-20* | 0.812 | 0.594 | 0.593 |
| 10 | 1.109 | 0.953 | 1.192 | 0.696 | 0.750-20 | 0.937 | 0.719 | 0.718 |
| 12 | 1.296 | 1.140 | 1.380 | 0.875 | 0.937-20 | 1.031 | 0.812 | 0.905 |
| 14 | 1.396 | 1.250 | 1.505 | 0.935 | 1.000-20 | 1.125 | 0.906 | 0.968 |
| 16 | 1.521 | 1.329 | 1.630 | 1.062 | 1.125-20* | 1.250 | 0.969 | 1.093 |
| 18 | 1.646 | 1.455 | 1.740 | 1.187 | 1.250-20* | 1.343 | 1.062 | 1.217 |
| 20 | 1.771 | 1.642 | 1.860 | 1.312 | 1.375-18 | 1.437 | 1.156 | 1.342 |
| 22 | 1.959 | 1.705 | 2.040 | 1.437 | 1.500-20* | 1.562 | 1.250 | 1.467 |
| 24 | 2.084 | 1.892 | 2.160 | 1.562 | 1.625-18 | 1.703 | 1.375 | 1.592 |
CN0942 Series: Fluorosilicone Inserts Termination Types
| Termination Designator | Termination Type | T Minimum (in) | S (in) |
|---|---|---|---|
| 01* | P & S | 0.250 | 0.025 |
| 02* | X & Y | 0.230 | N/A |
| 03** | P & S | 0.144 | 0.025 |
| 04** | X & Y | 0.124 | N/A |
| 06* | T & W | 0.900 | 0.025 |
CN0944 Series: Neoprene Inserts Termination Types
| Termination Designator | Termination Type | T Minimum (in) | S (in) |
|---|---|---|---|
| 01* | B | 0.250 | 0.025 |
| 02* | C | 0.230 | N/A |
| 03** | B | 0.144 | 0.025 |
| 04** | C | 0.124 | N/A |
| 06* | W | 0.900 | 0.025 |
Cable Support Assembly
| Shell Size | Cinch Part Number | MS Part Number | A Maximum (in) | B (in) | X I.D. (in) | C ThD P (in) |
|---|---|---|---|---|---|---|
| 8 | C48-2840 | MS27291-13 | 0.606 | 0.935 | 0.186 | 0.437-28 |
| 10 | C48-2341 | MS27291-1 | 0.731 | 0.935 | 0.270 | 0.562-24 |
| 12 | C48-2342 | MS27291-2 | 0.919 | 0.935 | 0.400 | 0.750-20 |
| 14 | C48-2343 | MS27291-3 | 0.981 | 1.170 | 0.460 | 0.812-20 |
| 16 | C48-2344 | MS27291-4 | 1.106 | 1.170 | 0.610 | 0.937-20 |
| 18 | C48-2345 | MS27291-5 | 1.231 | 1.170 | 0.690 | 1.062-18 |
| 20 | C48-2643 | MS27291-14 | 1.356 | 1.170 | 0.816 | 1.187-18 |
| 22 | C48-2346 | MS27291-6 | 1.481 | 1.170 | 0.940 | 1.312-18 |
| 24 | C48-2644 | MS27291-15 | 1.606 | 1.170 | 1.066 | 1.437-18 |
Contacts
| Cinch Part Number | MS Part Number (Pin) | MS Part Number (Socket) | Boeing Part Number (Pin) | Boeing Part Number (Socket) | Contact Size | Wire Size AWG | Max Current Rating (Amps) |
|---|---|---|---|---|---|---|---|
| C48-1226-02 | M39029/31-235 | M39029/32-254 | BACC47CN3S | BACC47CP3S | 12 | 12 | 41 |
| C48-1226-54 | M39029/31-229 | M39029/32-248 | BACC47CN2S | BACC47CP2S | 16 | 16 | 22 |
| C48-1226-55 | M39029/31-627 | M39029/32-260 | BACC47CN1S | BACC47CP1S | 20 | 20 | 7.5 |
Grommet Sealing Plugs Color Code
| MS Part Number | Color | Size |
|---|---|---|
| MS27488-20-2 | Red | 20 |
| MS27488-16-2 | Green | 16 |
| MS27488-12-2 | Orange | 12 |
Insertion/Removal Tools
| Tool Type | Contact Size | Part Number |
|---|---|---|
| Insertion Tool | 20 | M81969/17-03 |
| Insertion Tool | 16 | M81969/17-04 |
| Insertion Tool | 12 | M81969/17-05 |
| Removal Tool | 20 | M81969/19-06 |
| Removal Tool | 16 | M81969/19-01 |
| Removal Tool | 12 | M81969/19-02 |
CN0966 Series (Self-Locking Plug Connectors) Dimensions
| Shell Size | A (in) | B (in) | C Thread |
|---|---|---|---|
| 8 | 0.835 | 0.306 | 0.500-20 UNEF-2A |
| 10 | 0.972 | 0.371 | 0.625-24 UNEF-2A |
| 12 | 1.165 | 0.547 | 0.750-20 UNEF-2A |
| 14 | 1.230 | 0.613 | 0.875-20 UNEF-2A |
| 16 | 1.355 | 0.758 | 1.000-20 UNEF-2A |
| 18 | 1.470 | 0.865 | 1.0625-18 UNEF-2A |
| 20 | 1.607 | 0.986 | 1.1875-18 UNEF-2A |
| 22 | 1.735 | 1.106 | 1.3125-18 UNEF-2A |
| 24 | 1.858 | 1.235 | 1.4375-18 UNEF-2A |
| 28 | 2.113 | 1.485 | 1.750-18* UNEF-2A |
CN0967 Series (Vibration-Resistant Receptacle) Dimensions
| Shell Size | A (in) | B (in) | C (in) | D (in) | J Thread |
|---|---|---|---|---|---|
| 8 | 0.812 | 0.594 | 0.561 | 0.328 | 0.5000-20 UNEF-2A |
| 10 | 0.937 | 0.719 | 0.696 | 0.371 | 0.6250-24 UNEF-2A |
| 12 | 1.031 | 0.812 | 0.875 | 0.547 | 0.7500-20 UNEF-2A |
| 14 | 1.125 | 0.906 | 0.935 | 0.609 | 0.8750-20 UNEF-2A |
| 16 | 1.250 | 0.969 | 1.062 | 0.758 | 1.0000-20 UNEF-2A |
| 18 | 1.343 | 1.062 | 1.187 | 0.865 | 1.875-18 UNEF-2A |
| 20 | 1.437 | 1.156 | 1.312 | 0.986 | 1.1875-18 UNEF-2A |
| 22 | 1.562 | 1.250 | 1.437 | 1.106 | 1.3125-18 UNEF-2A |
| 24 | 1.703 | 1.375 | 1.562 | 1.235 | 1.4375-18 UNEF-2A |
| 28 | 2.000 | 1.562 | 1.810 | 1.485 | 1.750-18* UNEF-2A |
CN1020 Series (Vibration-Proof Plug Connector) Dimensions
| Shell Size | A (in) | B (in) | C (in) | D Thread |
|---|---|---|---|---|
| 8 | 0.765 | 0.306 | 0.500-20 UNEF-2A | |
| 10 | 0.967 | 0.371 | 0.625-24 UNEF-2A | |
| 12 | 1.078 | 0.547 | 0.750-20 UNEF-2A | |
| 14 | 1.187 | 0.613 | 0.875-20 UNEF-2A | |
| 16 | 1.309 | 0.758 | 1.000-20 UNEF-2A | |
| 18 | 1.375 | 0.865 | 1.0625-18 UNEF-2A | |
| 20 | 1.505 | 0.986 | 1.1875-18 UNEF-2A | |
| 22 | 1.625 | 1.106 | 1.3125-18 UNEF-2A | |
| 24 | 1.755 | 1.235 | 1.4375-18 UNEF-2A | |
| 28 | 2.161 | 1.485 | 1.750-18* UNEF-2A |
CN1021 Series (Vibration-Resistant Receptacle) Dimensions
| Shell Size | A (in) | B (in) | C (in) | D (in) | Thread |
|---|---|---|---|---|---|
| 8 | 0.812 | 0.594 | 0.561 | 0.328 | 0.500-20 UNEF-2A |
| 10 | 0.937 | 0.719 | 0.696 | 0.371 | 0.625-24 UNEF-2A |
| 12 | 1.031 | 0.812 | 0.875 | 0.547 | 0.750-20 UNEF-2A |
| 14 | 1.125 | 0.906 | 0.935 | 0.609 | 0.875-20 UNEF-2A |
| 16 | 1.250 | 0.969 | 1.062 | 0.758 | 1.000-20 UNEF-2A |
| 18 | 1.343 | 1.062 | 1.187 | 0.865 | 1.0625-18 UNEF-2A |
| 20 | 1.437 | 1.156 | 1.312 | 0.986 | 1.1875-18 UNEF-2A |
| 22 | 1.562 | 1.250 | 1.437 | 1.106 | 1.3125-18 UNEF-2A |
| 24 | 1.703 | 1.375 | 1.562 | 1.235 | 1.4375-18 UNEF-2A |
| 28 | 2.000 | 1.562 | 1.810 | 1.485 | 1.750-18* UNEF-2A |
CN909A MMB Series (Vibration-Proof Plug Connector) Dimensions
| Shell Size | A Diameter (in) | B Diameter (in) | C Maximum (in) | D Thread |
|---|---|---|---|---|
| 8 | 0.328 | 0.437 | 0.766 | 0.437-28 UNEF-2A |
| 10 | 0.420 | 0.562 | 0.906 | 0.562-24 UNEF-2A |
| 12 | 0.580 | 0.750 | 1.078 | 0.750-20 UNEF-2A |
| 14 | 0.664 | 0.812 | 1.141 | 0.812-20 UNEF-2A |
| 16 | 0.769 | 0.938 | 1.266 | 0.937-20 UNEF-2A |
| 18 | 0.902 | 1.062 | 1.375 | 1.062-18 UNEF-2A |
| 20 | 1.033 | 1.182 | 1.510 | 1.187-18 UNEF-2A |
| 22 | 1.152 | 1.312 | 1.625 | 1.312-18 UNEF-2A |
| 24 | 1.282 | 1.432 | 1.760 | 1.437-18 UNEF-2A |
Mounting Panel Data
| Shell Size | M Minimum (in) | N Minimum (in) | G (in) | H (in) | K (in) | Recommended Minimum Torque for Jam Nut (inch/lb) |
|---|---|---|---|---|---|---|
| 8 | 0.620 | 0.447 | 0.605 | 0.635 | 0.594 | 28 |
| 10 | 0.748 | 0.572 | 0.730 | 0.760 | 0.719 | 36 |
| 12 | 0.913 | 0.760 | 0.917 | 0.947 | 0.812 | 56 |
| 14 | 0.980 | 0.822 | 0.980 | 1.010 | 0.906 | 64.5 |
| 16 | 1.107 | 0.948 | 1.105 | 1.135 | 0.969 | 69 |
| 18 | 1.209 | 1.072 | 1.225 | 1.260 | 1.062 | 81 |
| 20 | 1.337 | 1.192 | 1.350 | 1.385 | 1.156 | 102 |
| 22 | 1.452 | 1.322 | 1.475 | 1.510 | 1.250 | 122.5 |
| 24 | 1.577 | 1.442 | 1.600 | 1.635 | 1.375 | 144 |
| 28 | 1.827 | 1.760 | 1.856 | 1.885 | 1.562 | - |
2410311310_CINCH-DEUY9P_C17683022.pdf