Lo-Pro Split Backshells

Ultra Low Profile EMI/RFI Backshells

Compaero India's Lo-Pro Split series features ultra-low profile 90° backshell assemblies engineered for space-constrained, high-performance interconnect applications across aerospace, defense, and other demanding environments. Designed to reduce overall installation height, these backshells enable efficient cable routing while maintaining robust mechanical performance and effective EMI/RFI shielding.

The innovative split front and rear shell construction provides easy access to the connector interface, simplifying crimp or solder contact termination and improving assembly efficiency. An integrated shield termination platform or suitable features like lamp base thread, crimp ring or memory ring ensures reliable shielding continuity and shrink boot lip enables secure cable termination with heat shrink boot accommodation.

Available in multiple configurations with a wide range of connector interface options, materials, and plating finishes, Lo-Pro Split backshells offer a flexible and dependable solution for modern interconnect system requirements.

Compaero Lo-Pro Split Backshells
SERIES 31

Ultra Low Profile Split 90° Lamp Base Thread Adapter

SERIES 35

Ultra Low Profile Split 90° Shield Sock Shrink Boot Adapter

SERIES 46

Ultra Low Profile Split 90° Banding Adapter

SERIES 48

Ultra Low Profile Split 90° Banding Adapter

SERIES 49

Ultra Low Profile Split 90° Memory Ring Adapter

Technical Reference

CONNECTOR INTERFACE CODES

For standard circular interfaces

Compaero offer termination solutions for virtually all known connector interfaces, the variants highlighted below are our standard lines, available on all product lines shown in this catalogue.

CONNECTOR INTERFACE INTERFACE CODE
EN2997, ESC10, ESC11 A
EN3645 H
MIL-DTL-26482-SERIES II A
MIL-DTL-38999 SERIES I & II F
MIL-DTL-38999 SERIES III & IV H
MIL-DTL-5015 CRIMP A
MIL-DTL-83723 SERIES I & III A

MATERIAL & PLATING OPTIONS

All Compaero backshells are available in a wide selection of material and plating combinations, from heavy duty marine applications to lightweight aerospace solutions, there is an option for almost any situation.

CODE MIL SPEC
CODE
MATERIAL PLATING PROCESS ROHS
COMPLIANT
B - Marine Bronze Shotblast, Nonreflective 1000 Hour Salt Spray, Conductive -65 to +200°C Yes
C A Aluminum Anodize, Black AMS-A-8625 Type II Class 2, 336 Hour Salt Spray, Non-Conductive -65 to +175°C Yes
F N, F Aluminum Electroless Nickel AMS-C-26074 Class 4 Grade B; ASTM-B-733, SC 2, Type IV, 48 Hour Salt Spray, Conductive -65 to +200°C Yes
G - Aluminum Anodize, Hardcoat, Black AMS-A-8625 Type III, Class 2, .001" thick, 336 Hour Salt Spray, Non-Conductive -65 to +200°C Yes
KB B Stainless Steel Cadmium, Black SAE-AMS-QQ-P-416 Type II Class 3, 1000 Hour Salt Spray, Conductive -65 to +175°C No
K S Stainless Steel Passivate SAE-AMS-QQ-P-35 Type VI, 1000 Hour Salt Spray, Conductive -65 to +200°C Yes
KL - Stainless Steel Electrodeposited Nickel SAE-AMS-QQ-N-290 Class 1 Grade F, 1000 Hour Salt Spray, Conductive -65 to +200°C Yes
TR - Aluminum Zinc-Nickel, Black ASTM B841 Grade 5 over electroless nickel, 500 Hour Salt Spray, Conductive -65 to +175°C Yes
T - Aluminum Zinc-Nickel, Black ASTM B841 Grade 5 over electroless nickel, 1000 Hour Salt Spray, Conductive -65 to +175°C No
W W Aluminum Cadmium, Olive Drab SAE-AMS-QQ-P-416 Type II Class 2 over electroless nickel, 1000 Hour Salt Spray, Conductive -65 to +175°C No
X - Aluminum Unplated - Yes
Y - Aluminum Zinc-Cobalt, Olive Drab ASTM B 840 Grade 6 Type D over electroless nickel, 350 Hour Salt Spray, Conductive -65 to +175°C Yes
ZN - Aluminum Zinc-Nickel, Olive Drab ASTM B841 Grade 5 over electroless nickel, 1000 Hour Salt Spray, Conductive -65 to +175°C No
Z - Aluminum Zinc-Cobalt, Black ASTM B 840 Grade 6 Type D over electroless nickel, 350 Hour Salt Spray, Conductive -65 to +175°C Yes
WF P Aluminum Cadmium, Olive Drab - Selective Plating SAE-AMS-QQ-P-416 Type II Class 3 over electroless nickel Conductive -65 to +175°C Banding area of backshell free of cadmium plate No
TF ZP Aluminum Zinc-Nickel, Black - Selective Plating ASTM B841 Grade 5 over electroless nickel Conductive -65 to +175°C Banding area of backshell free of zinc nickel plating Yes

RECOMMENDED TORQUE VALUES

The below figures are provided to support operators already trained in the installation of heat shrinkable products and harnessing components. They identify the recommended torque values to be used when installing adapters onto circular electrical connectors, to consistently tighten adapters in a controlled manner.

For any questions or further instructions please contact us and we will be happy to assist you.

Connector Accessories onto Connector Threads

SHELL
SIZE
MIL-DTL-26500
MIL-DTL-81511
MIL-DTL-26482 S1
MIL-DTL-38999 S1/S2
MIL-DTL-5015 Solder
MIL-DTL-26482 S2  |  MIL-DTL-28840
MIL-DTL-83723  |  MIL-DTL-22992
MIL-DTL-5015 Crimp  |  MIL-DTL-38999 S3/S4
TORQUE VALUES in-lb / Nm TORQUE VALUES in-lb / Nm
08/09 30-40 3.4-4.5 51-61 5.8-6.9
10/11 30-40 3.4-4.5 71-81 8.0-9.2
12/13 35-45 4.0-5.1 103-113 11.6-12.8
14/15 35-45 4.0-5.1 111-121 12.5-13.7
16/17 35-45 4.0-5.1 111-121 12.5-13.7
18/19 35-45 4.0-5.1 111-121 12.5-13.7
20/21 75-85 8.5-9.6 131-141 14.8-15.9
22/23 75-85 8.5-9.6 131-141 14.8-15.9
24/25 75-85 8.5-9.6 131-141 14.8-15.9
28 115-125 13.0-14.1 143-153 16.2-17.3
32 115-125 13.0-14.1 143-153 16.2-17.3
36 115-125 13.0-14.1 143-153 16.2-17.3
40 155-165 17.5-18.6 159-169 18.0-19.1
44 155-165 17.5-18.6 159-169 18.0-19.1
48 155-165 17.5-18.6 159-169 18.0-19.1

Cable Clamps onto Backshells

CLAMP
SIZE
TORQUE VALUES
in - lb Nm
01 35-40 4.0-4.5
02 35-40 4.0-4.5
03 35-55 4.0-6.2
04 35-55 4.0-6.2
05 35-55 4.0-6.2
06 40-60 4.5-6.8
07 40-60 4.5-6.8
08 40-60 4.5-6.8
09 80-100 9.0-11.3
10 80-100 9.0-11.3
11 80-100 9.0-11.3
12 80-100 9.0-11.3

Cable Clamp Hardware

THREAD
SIZE
TORQUE VALUES
in - lb Nm
2-56 1.5-2.5 0.2-0.3
4-40 3.5-4.5 0.4-0.5
6-32 5.0-7.0 0.6-0.8
8-32 7.0-9.0 0.8-1.0
10-32 9.0-11.0 1.0-1.2
1/4-20 11.0-13.0 1.2-1.5