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Backshells

Amphenol PCD Backshells offer strain relief, environmental protection, and 360° EMI/RFI shielding at the termination area of virtually any circular connector. These connectors feature a base material constructed of aluminum alloy, stainless steel, brass, or composite and a variety of finishes such as black zinc nickel, cadmium, electroless nickel, anodized black, passivated, and more. Amphenol PCD Backshells have custom designs available and meet or exceed RoHS/REACH compliance standards. Available in both military specifications and commercial types for any application, these backshells meet the Society of Automotive Engineers (SAE) AS85049 standard.

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Part #

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 10

M85049/3610W03
Amphenol PCD
1: £51.03
22In Stock

Mfr. Part No.
M85049/3610W03

Mouser Part No
523-85049/3610W03

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 10

Datasheet

22In Stock

£51.03

£45.28

£38.48

£35.44

£33.40

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 14

M85049/3614W04
Amphenol PCD
1: £50.73
5In Stock

Mfr. Part No.
M85049/3614W04

Mouser Part No
523-85049/3614W04

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 14

Datasheet

5In Stock

£50.73

£46.34

£45.51

£40.48

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 16

M85049/3616W04
Amphenol PCD
1: £57.42
9In Stock

Mfr. Part No.
M85049/3616W04

Mouser Part No
523-85049/3616W04

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 16

Datasheet

9In Stock

£57.42

£51.06

£46.20

£45.40

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

M85049/3616W06
Amphenol PCD
1: £61.76
12In Stock

Mfr. Part No.
M85049/3616W06

Mouser Part No
523-85049/3616W06

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

Datasheet

12In Stock

£61.76

£55.93

£50.32

£49.42

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 18

M85049/3618W06
Amphenol PCD
1: £53.05
10In Stock

Mfr. Part No.
M85049/3618W06

Mouser Part No
523-85049/3618W06

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 18

Datasheet

10In Stock

£53.05

£47.38

£40.25

£39.97

£38.50

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 20

M85049/3620W05
Amphenol PCD
1: £53.33
11In Stock

Mfr. Part No.
M85049/3620W05

Mouser Part No
523-85049/3620W05

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 20

Datasheet

11In Stock

£53.33

£47.40

£42.50

£41.22

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 20

M85049/3620W06
Amphenol PCD
1: £57.06
15In Stock

Mfr. Part No.
M85049/3620W06

Mouser Part No
523-85049/3620W06

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 20

Datasheet

15In Stock

£57.06

£51.62

£50.84

£46.54

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 24

M85049/3624W04
Amphenol PCD
1: £59.29
1In Stock

Mfr. Part No.
M85049/3624W04

Mouser Part No
523-85049/3624W04

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 24

Datasheet

1In Stock

£59.29

£52.69

£50.66

£48.98

£46.27

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL

M85049/47W14
Amphenol PCD
1: £13.92
17In Stock
25Expected 12/05/2026

Mfr. Part No.
M85049/47W14

Mouser Part No
523-85049/47-14W

Circular MIL Spec Backshells BACKSHELL

Datasheet

17In Stock

25Expected 12/05/2026

£13.92

£13.27

£11.71

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-10W
Amphenol PCD
1: £42.30
16In Stock

Mfr. Part No.
M85049/6-10W

Mouser Part No
523-85049/6-10W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

16In Stock

£42.30

£39.16

£36.19

£33.03

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-11W
Amphenol PCD
1: £53.17
14In Stock

Mfr. Part No.
M85049/6-11W

Mouser Part No
523-85049/6-11W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

14In Stock

£53.17

£47.59

£42.72

£38.59

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-16W
Amphenol PCD
1: £49.46
8In Stock

Mfr. Part No.
M85049/6-16W

Mouser Part No
523-85049/6-16W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

8In Stock

£49.46

£44.72

£40.18

£38.19

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-40W
Amphenol PCD
1: £53.17
4In Stock

Mfr. Part No.
M85049/6-40W

Mouser Part No
523-85049/6-40W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

4In Stock

£53.17

£47.59

£42.72

£39.39

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-54W
Amphenol PCD
1: £43.22
21In Stock

Mfr. Part No.
M85049/6-54W

Mouser Part No
523-85049/6-54W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

21In Stock

£43.22

£43.21

£40.79

£40.41

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-57W
Amphenol PCD
1: £38.42
25In Stock

Mfr. Part No.
M85049/6-57W

Mouser Part No
523-85049/6-57W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

25In Stock

£38.42

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

M85049/6-68W
Amphenol PCD
1: £173.69
24In Stock

Mfr. Part No.
M85049/6-68W

Mouser Part No
523-85049/6-68W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG OD CAD

Datasheet

24In Stock

£173.69

£153.22

£141.90

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-11W
Amphenol PCD
1: £36.51
17In Stock

Mfr. Part No.
M85049/7-11W

Mouser Part No
523-85049/7-11W

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

Datasheet

17In Stock

£36.51

£31.04

£29.09

£27.70

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-52W
Amphenol PCD
1: £43.06
17In Stock

Mfr. Part No.
M85049/7-52W

Mouser Part No
523-85049/7-52W

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

Datasheet

17In Stock

£43.06

£34.82

£29.85

£29.52

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 12

M85049/76-12W03
Amphenol PCD
1: £63.54
5In Stock
25Expected 28/05/2026

Mfr. Part No.
M85049/76-12W03

Mouser Part No
523-85049/76-12W03

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 12

Datasheet

5In Stock

25Expected 28/05/2026

£63.54

£58.81

£58.80

£52.83

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 14

M85049/76-14W05
Amphenol PCD
1: £68.70
18In Stock

Mfr. Part No.
M85049/76-14W05

Mouser Part No
523-85049/76-14W05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 14

Datasheet

18In Stock

£68.70

£62.66

£54.84

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

M85049/78-11W03
Amphenol PCD
1: £60.18
2In Stock

Mfr. Part No.
M85049/78-11W03

Mouser Part No
523-85049/78-11W03

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

Datasheet

2In Stock

£60.18

£55.59

£50.81

£48.68

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

M85049/78-15W05
Amphenol PCD
1: £74.68
14In Stock

Mfr. Part No.
M85049/78-15W05

Mouser Part No
523-85049/78-15W05

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

Datasheet

14In Stock

£74.68

£67.08

£61.08

£58.50

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

M85049/78-17W05
Amphenol PCD
1: £67.02
12In Stock

Mfr. Part No.
M85049/78-17W05

Mouser Part No
523-85049/78-17W05

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

Datasheet

12In Stock

£67.02

£61.11

£58.76

£56.81

£53.66

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

M85049/78-21W08
Amphenol PCD
1: £72.37
3In Stock
25Expected 28/05/2026

Mfr. Part No.
M85049/78-21W08

Mouser Part No
523-85049/78-21W08

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

Datasheet

3In Stock

25Expected 28/05/2026

£72.37

£68.28

£60.37

£59.95

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 78 Backshell Env-EMI/RFI

M85049/78-25W08
Amphenol PCD
1: £94.16
15In Stock

Mfr. Part No.
M85049/78-25W08

Mouser Part No
523-85049/78-25W08

Circular MIL Spec Backshells 78 Backshell Env-EMI/RFI

Datasheet

15In Stock

£94.16

£86.83

£72.79

£68.16

View

Min.: 1
Mult.: 1

No