Circular Connector Backshells

Circular connector backshells are components of a wiring system that attach to the cable side of a circular connector in order to provide robustness and ensure its integrity. They are typically separate from the connector head itself, and secure the cable to the connector via a clamp.

Why are circular connector backshells needed?

Circular connector backshells help to protect the connector, and to safeguard the reliability of the cable and ultimately the entire system. They prevent the ingress of dirt, moisture and liquids into the connector head by providing a tight seal against the cable itself. In addition they act as an effective form of strain relief for the connector assembly, ensuring that the cable cannot be bent to an excessive angle, which could potentially damage it.

What are circular connector backshells used for?

Circular connector backshells are used to shield wire connection points of interconnecting cables and connectors. They may also be used to shield against electrical interference in a system by acting as a continuation of the cable ground sheath directly into the connector itself.


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Description Price For Use With Shell Size Body Orientation Gender Housing Material Spring Clip Size Thread Size IP Rating Length Number of Contacts Strain Relief Series Priced to Clear
RS Stock No. 241-1323
Mfr. Part No.91D1-14-08-1-ZB
BrandPolamco
£45.01
Each
Units
MIL-DTL-26482 Series I, PATT 105, PATT 603 14 Straight - Aluminium Alloy 2 UNEF 13/16-20 - 34mm - - 91 -
RS Stock No. 220-7039
Mfr. Part No.UTG10AC
BrandSouriau
£4.21
Each
Units
- - - - - - - - 40mm - - - -
RS Stock No. 241-1430
Mfr. Part No.91L1-12-05-1-ZB
BrandPolamco
£23.73
Each
Units
MIL-DTL-5015 Connector 12 Straight - Aluminium Alloy 1 UNEF 5/8-24 - 30mm - - 91 -
RS Stock No. 531-548
Mfr. Part No.PX0801
BrandBulgin
£2.78
Each
Units
- - - - - - - - 61.5mm - - - -
RS Stock No. 220-7045
Mfr. Part No.UTG12AC
BrandSouriau
£4.35
Each
Units
- - - - - - - - 40mm - - - -
RS Stock No. 510-8418
Mfr. Part No.AIA-5003-09-00-90-10-AA-04
BrandAmphenol
£49.50
Each
Units
Mil-C-38999 Series III - Right Angle - Aluminium Alloy - M12 - 32.39mm - No - -
RS Stock No. 241-1294
Mfr. Part No.91D1-08-04-1-ZB
BrandPolamco
£28.73
Each
Units
MIL-DTL-26482 Series I, PATT 105, PATT 603 8 Straight - Aluminium Alloy 1 UNEF 7/16-28 - 34mm - - 91 -
RS Stock No. 220-7051
Mfr. Part No.UTG14AC
BrandSouriau
£4.84
Each
Units
- - - - - - - - 46mm - - - -
RS Stock No. 220-7067
Mfr. Part No.UTG16AC
BrandSouriau
£4.52
Each
Units
- - - - - - - - 46mm - - - -
RS Stock No. 689-8822
Mfr. Part No.BK4SRL12079XY
BrandAmphenol
£34.62
Each
Units
MIL-C 38999 Connector 13 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4 -
RS Stock No. 510-8395
Mfr. Part No.91SH1-13-06-1-ZB
BrandPolamco
£35.12
Each
Units
MIL-D 38999 Professional Threaded Connector 13 Straight - Aluminium Alloy 2 M18 x 1 - 30mm - - 91 -
RS Stock No. 241-1301
Mfr. Part No.91D1-10-05-1-ZB
BrandPolamco
£26.24
Each
Units
MIL-DTL-26482 Series I, PATT 105, PATT 603 10 Straight - Aluminium Alloy 1 UNEF 9/16-24 - 34mm - - 91 -
RS Stock No. 104-503
Mfr. Part No.91D1-12-06-1-ZB
BrandPolamco
£33.10
Each
Units
62 GB Series, AB05 Series, MIL-C 26482 Connector 12 Straight - Metal 1 UNEF 11/16-24 - - - - 1 -
RS Stock No. 510-8367
Mfr. Part No.91SH1-09-04-1-ZB
BrandPolamco
£12.96
Each
Units
MIL-D 38999 Professional Threaded Connector 9 Straight - Aluminium Alloy 4 M12 x 1 - 30mm - - 91 -
RS Stock No. 474-603
Mfr. Part No.192991-0516/RS474603.0000
BrandITT Cannon
£24.75
Each
Units
QM Range Connector - - Female Nylon - - - 67mm 23 - 192 -
RS Stock No. 760-0503
Mfr. Part No.ABAC1003W09
£24.77
Each
Units
MIL-DTL-38999 Connector Series III 09 Straight - Aluminium - - IP67 28.58mm - - ABAC -
RS Stock No. 689-8834
Mfr. Part No.BK4SRL16109XY
BrandAmphenol
£35.01
Each
Units
MIL-C 38999 Connector 17 Straight Male Zinc Plated Aluminium - - - 31.75mm - - BK4 -
RS Stock No. 474-596
Mfr. Part No.192991-0514/RS474596.0000
BrandITT Cannon
£23.19
Each
Units
QM Range Connector - - Female Nylon - - - 73.5mm 7 - 192 -
RS Stock No. 510-8373
Mfr. Part No.91SH1-11-05-1-ZB
BrandPolamco
£25.02
Each
Units
MIL-D 38999 Professional Threaded Connector 11 Straight - Aluminium Alloy 1 M15 x 1 - 30mm - - 91 -
RS Stock No. 575-743
Mfr. Part No.PX0799
BrandBulgin
£3.13
Each
Units
- - - - - - - - 50mm - - - -
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