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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 79 Backshell Env-EMI/RFI

M85049/79-15W04
Amphenol PCD
1: £67.54
23In Stock

Mfr. Part No.
M85049/79-15W04

Mouser Part No
523-85049/79-15W04

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

Datasheet

23In Stock

£67.54

£61.63

£56.41

£51.45

£50.16

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 15

M85049/79-15W05
Amphenol PCD
1: £59.29
39In Stock

Mfr. Part No.
M85049/79-15W05

Mouser Part No
523-85049/79-15W05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 15

Datasheet

39In Stock

£59.29

£54.34

£53.01

£51.70

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

M85049/79-17W06
Amphenol PCD
1: £70.22
20In Stock

Mfr. Part No.
M85049/79-17W06

Mouser Part No
523-85049/79-17W06

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

Datasheet

20In Stock

£70.22

£64.38

£55.02

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

M85049/79-19W03
Amphenol PCD
1: £63.52
25In Stock

Mfr. Part No.
M85049/79-19W03

Mouser Part No
523-85049/79-19W03

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

Datasheet

25In Stock

£63.52

£61.77

£59.17

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

M85049/79-19W04
Amphenol PCD
1: £86.16
32In Stock

Mfr. Part No.
M85049/79-19W04

Mouser Part No
523-85049/79-19W04

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

Datasheet

32In Stock

£86.16

£70.02

£56.06

£51.55

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

M85049/79-19W05
Amphenol PCD
1: £99.08
33In Stock

Mfr. Part No.
M85049/79-19W05

Mouser Part No
523-85049/79-19W05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 19

Datasheet

33In Stock

£99.08

£96.39

£76.45

£58.53

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

M85049/79-21W03
Amphenol PCD
1: £69.38
25In Stock

Mfr. Part No.
M85049/79-21W03

Mouser Part No
523-85049/79-21W03

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

Datasheet

25In Stock

£69.38

£64.49

£58.96

£58.81

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

M85049/79-21W05
Amphenol PCD
1: £83.93
22In Stock

Mfr. Part No.
M85049/79-21W05

Mouser Part No
523-85049/79-21W05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

Datasheet

22In Stock

£83.93

£77.16

£62.74

£58.65

£54.31

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

M85049/79-21W06
Amphenol PCD
1: £58.88
59In Stock

Mfr. Part No.
M85049/79-21W06

Mouser Part No
523-85049/79-21W06

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

Datasheet

59In Stock

£58.88

£55.48

£55.38

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

M85049/79-21W08
Amphenol PCD
1: £76.61
36In Stock

Mfr. Part No.
M85049/79-21W08

Mouser Part No
523-85049/79-21W08

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 21

Datasheet

36In Stock

£76.61

£69.87

£67.18

£64.93

£61.35

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 23

M85049/79-23W06
Amphenol PCD
1: £93.98
18In Stock

Mfr. Part No.
M85049/79-23W06

Mouser Part No
523-85049/79-23W06

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 23

Datasheet

18In Stock

£93.98

£85.00

£72.24

£68.81

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 23

M85049/79-23W09
Amphenol PCD
1: £78.21
25In Stock

Mfr. Part No.
M85049/79-23W09

Mouser Part No
523-85049/79-23W09

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 23

Datasheet

25In Stock

£78.21

£76.46

£72.37

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 25

M85049/79-25W06
Amphenol PCD
1: £62.08
24In Stock

Mfr. Part No.
M85049/79-25W06

Mouser Part No
523-85049/79-25W06

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 25

Datasheet

24In Stock

£62.08

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 25

M85049/79-25W09
Amphenol PCD
1: £101.57
21In Stock

Mfr. Part No.
M85049/79-25W09

Mouser Part No
523-85049/79-25W09

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD SZ 25

Datasheet

21In Stock

£101.57

£93.65

£76.77

£73.04

View

Min.: 1
Mult.: 1

No

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

M85049/8-10W
Amphenol PCD
1: £35.64
44In Stock
50Expected 09/03/2026

Mfr. Part No.
M85049/8-10W

Mouser Part No
523-85049/8-10W

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

Datasheet

44In Stock

50Expected 09/03/2026

£35.64

£34.45

£32.55

£32.46

Min.: 1
Mult.: 1

No

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

M85049/8-13W
Amphenol PCD
1: £50.15
30In Stock

Mfr. Part No.
M85049/8-13W

Mouser Part No
523-85049/8-13W

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

Datasheet

30In Stock

£50.15

£44.26

£39.22

£34.70

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

M85049/8-17W
Amphenol PCD
1: £63.12
45In Stock

Mfr. Part No.
M85049/8-17W

Mouser Part No
523-85049/8-17W

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

Datasheet

45In Stock

£63.12

£57.78

£48.37

£39.47

£38.42

Min.: 1
Mult.: 1

No

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

M85049/8-24W
Amphenol PCD
1: £86.31
18In Stock

Mfr. Part No.
M85049/8-24W

Mouser Part No
523-85049/8-24W

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

Datasheet

18In Stock

£86.31

£74.97

£68.85

Min.: 1
Mult.: 1

No

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

M85049/8-60W
Amphenol PCD
1: £58.89
20In Stock

Mfr. Part No.
M85049/8-60W

Mouser Part No
523-85049/8-60W

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

Datasheet

20In Stock

£58.89

£54.67

£54.36

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 12

M85049/82-12W02
Amphenol PCD
1: £34.49
44In Stock

Mfr. Part No.
M85049/82-12W02

Mouser Part No
523-85049/82-12W02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 12

Datasheet

44In Stock

£34.49

£32.04

£28.62

£27.43

£26.30

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 14

M85049/82-14W02
Amphenol PCD
1: £31.50
91In Stock

Mfr. Part No.
M85049/82-14W02

Mouser Part No
523-85049/82-14W02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 14

Datasheet

91In Stock

£31.50

£28.50

£24.12

£23.27

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 20

M85049/82-20W02
Amphenol PCD
1: £55.57
48In Stock

Mfr. Part No.
M85049/82-20W02

Mouser Part No
523-85049/82-20W02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 20

Datasheet

48In Stock

£55.57

£53.82

£31.03

£30.73

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 82 Backshell Band Lock

M85049/82-22W02
Amphenol PCD
1: £48.89
66In Stock

Mfr. Part No.
M85049/82-22W02

Mouser Part No
523-85049/82-22W02

Circular MIL Spec Backshells 82 Backshell Band Lock

Datasheet

66In Stock

£48.89

£40.75

£40.33

£36.12

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 82 Backshell Band Lock

M85049/82-22W03
Amphenol PCD
1: £49.66
36In Stock

Mfr. Part No.
M85049/82-22W03

Mouser Part No
523-85049/82-22W03

Circular MIL Spec Backshells 82 Backshell Band Lock

Datasheet

36In Stock

£49.66

£43.89

£40.66

£36.97

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 10

M85049/83-10W03
Amphenol PCD
1: £48.48
29In Stock

Mfr. Part No.
M85049/83-10W03

Mouser Part No
523-85049/83-10W03

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 10

Datasheet

29In Stock

£48.48

£42.63

£40.99

£39.62

£37.43

Min.: 1
Mult.: 1

No