How To Select the Proper Backshell

The key to successful backshell selection is proper product application. To do this, a complete description of the backshell's intended use is required. The more complex the application is, the more detailed the questions become. The following are basic application requirements:

Shield terminating backshells require detailed cable construction description, and application definition. There is no panacea to shield terminations, or any one method that meets a majority of requirements. Band-it bands are the most universal termination method. However, bands require special tools to install. Backshell manufacturers have several designs to meet each requirement. The following are the basic or common designs:

All of the basic shield ring designs have specific uses and are manufactured by Glenair, Inc. The one you select depends on many factors. Costs, repairability, shield type, shield effectiveness, shield termination method, shield construction, shield combinations, cable type, cable jacket thickness, cable diameter tolerance, product performance, weight, working room, temperature, shock, vibration, strain-relief, dissimilar metals, corrosion, etc. The primary factor is cable construction--what type of shield is being terminated, where is the shield or combination of shields located within the cable or wire bundle, and type of outer jacket construction are key factors. Customer preference, established methods and practices, tradition, manual skill level and inspection must also be considered.

Links to diagrams below

Standard Shield Termination Design

Basic Backshell Configurations

Standard Shield Termination Design
Multiple Conical Rings
380-001

380-001

Dual Ring, C-Bore
Heavy Duty
MIL-C-85049/23,/24,/25
Overall Shield
380-086

380-086

Dual Ring, C-Bore
Heavy Duty
Individual and/or Overall Shield
380-018

380-018

Triple Ring, C-Bore
Medium Duty
Individual and/or Overall Shield
380-071

380-071

Internal Ring
Heavy Duty
MIL-DTL-28840/6
Individual and/or Overall Shield
Single Conical Rings
380-013

380-013

Single Ring
General Duty
Individual or Overall Shields
380-007

380-007

Single Cone Ring
Medium Duty
MIL-C-85049/17,/19,/36
Overall Shield
Crimp Ring and Banding Terminations
440-032

440-032

Crimp Ring
Medium Duty
M85049/26
Overall Shield
319-001

319-001

Medium Duty
Overall Shield
440-030

440-030

Medium Duty
M85049/82 - M85049/90
Overall Shield
Special Application
311-001

311-001

General Duty
Overall Shield
460-001

460-001

General Duty
Overall Shield
470-005

470-005

General Duty
Individual and Overall Shield
400-001

400-001

Light Duty
Individual Shield

Basic Backshell Configurations
Strain Relief Clamps Used on Backshells

MIL-C-85049/41
MS3057A Clamp
MIL-C-85049/41 Proprietary Light-Weight Clamp Proprietary
Light-Weight
Clamp
MIL-C-85049/42
MS3057D Clamp
MIL-C-85049/42 Proprietary G61911 Clamp Proprietary
G61911 Clamp
Proprietary Cable Grip Proprietary Cable Grip

Strain Relief Clamps Used on Connectors

MS3417, MS27506, M83723/15S, M85049/38, /49, /52 MS3417, MS27506, M83723/15S, M85049/38, /49, /52 MS3418, MS27507, M83723/15R, M85049/39, /47, /51 MS3418, MS27507, M83723/15R, M85049/39, /47, /51
M85049/53, /56
Cable Tie Backshell
M85049/53, /56 M85049/55, /63 M85049/55, /63
Cable Tie