Connectors – Mouser United Kingdom

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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 ENV EMI/ RFI R/A NIC SZ 15

M85049/79-15N05
Amphenol PCD
1: £73.02
12In Stock
25Expected 23/03/2026

Mfr. Part No.
M85049/79-15N05

Mouser Part No
523-85049/79-15N05

Amphenol PCD

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

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Datasheet

12In Stock

25Expected 23/03/2026

£73.02

£66.74

£58.91

£48.98

£46.98

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 17

M85049/79-17N03
Amphenol PCD
1: £70.10
10In Stock

Mfr. Part No.
M85049/79-17N03

Mouser Part No
523-85049/79-17N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 17

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Datasheet

10In Stock

£70.10

£65.25

£53.28

£47.86

£45.77

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

M85049/79-17N04
Amphenol PCD
1: £59.11
8In Stock
25Expected 23/04/2026

Mfr. Part No.
M85049/79-17N04

Mouser Part No
523-85049/79-17N04

Amphenol PCD

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

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Datasheet

8In Stock

25Expected 23/04/2026

£59.11

£56.01

£47.16

Min.: 1
Mult.: 1

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

M85049/79-19N07
Amphenol PCD
1: £66.07
1In Stock
25Expected 11/05/2026

Mfr. Part No.
M85049/79-19N07

Mouser Part No
523-85049/79-19N07

Amphenol PCD

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

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Datasheet

1In Stock

25Expected 11/05/2026

£66.07

£61.21

£60.42

£56.75

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Min.: 1
Mult.: 1

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

M85049/79-21N07
Amphenol PCD
1: £68.26
16In Stock

Mfr. Part No.
M85049/79-21N07

Mouser Part No
523-85049/79-21N07

Amphenol PCD

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

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Datasheet

16In Stock

£68.26

£58.17

£53.45

£51.63

£51.36

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

M85049/8-17N
Amphenol PCD
1: £48.15
18In Stock

Mfr. Part No.
M85049/8-17N

Mouser Part No
523-85049/8-17N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

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Datasheet

18In Stock

£48.15

£43.57

£37.51

£34.95

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

M85049/8-40N
Amphenol PCD
1: £42.61
11In Stock

Mfr. Part No.
M85049/8-40N

Mouser Part No
523-85049/8-40N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

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Datasheet

11In Stock

£42.61

£39.23

£33.60

£32.45

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

M85049/8-6N
Amphenol PCD
1: £40.48
6In Stock

Mfr. Part No.
M85049/8-6N

Mouser Part No
523-85049/8-6N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

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Datasheet

6In Stock

£40.48

£34.57

£33.24

£32.14

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

M85049/8-7W
Amphenol PCD
1: £49.73
8In Stock

Mfr. Part No.
M85049/8-7W

Mouser Part No
523-85049/8-7W

Amphenol PCD

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

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Datasheet

8In Stock

£49.73

£44.46

£39.83

£37.07

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

M85049/8-8W
Amphenol PCD
1: £42.07
23In Stock
25Expected 15/04/2026

Mfr. Part No.
M85049/8-8W

Mouser Part No
523-85049/8-8W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC

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Datasheet

23In Stock

25Expected 15/04/2026

£42.07

£37.31

£31.71

£31.38

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 16

M85049/82-16N02
Amphenol PCD
1: £33.53
4In Stock

Mfr. Part No.
M85049/82-16N02

Mouser Part No
523-85049/82-16N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 16

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Datasheet

4In Stock

£33.53

£30.37

£27.77

£27.67

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

M85049/82-18N03
Amphenol PCD
1: £37.63
12In Stock

Mfr. Part No.
M85049/82-18N03

Mouser Part No
523-85049/82-18N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

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Datasheet

12In Stock

£37.63

£32.14

£29.79

£28.47

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 22

M85049/82-22N02
Amphenol PCD
1: £42.95
20In Stock

Mfr. Part No.
M85049/82-22N02

Mouser Part No
523-85049/82-22N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 22

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Datasheet

20In Stock

£42.95

£38.67

£36.37

£34.22

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 82 Backshell Band Lock

M85049/82-22N03
Amphenol PCD
1: £50.38
7In Stock
25Expected 09/03/2026

Mfr. Part No.
M85049/82-22N03

Mouser Part No
523-85049/82-22N03

Amphenol PCD

Circular MIL Spec Backshells 82 Backshell Band Lock

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Datasheet

7In Stock

25Expected 09/03/2026

£50.38

£46.15

£37.26

£31.17

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

M85049/82-28N02
Amphenol PCD
1: £47.05
4In Stock

Mfr. Part No.
M85049/82-28N02

Mouser Part No
523-85049/82-28N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

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Datasheet

4In Stock

£47.05

£40.80

£37.05

£34.95

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

M85049/82-28N03
Amphenol PCD
1: £47.05
2In Stock
25Expected 23/04/2026

Mfr. Part No.
M85049/82-28N03

Mouser Part No
523-85049/82-28N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

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Datasheet

2In Stock

25Expected 23/04/2026

£47.05

£43.08

£38.83

£35.01

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12

M85049/84-12N03
Amphenol PCD
1: £51.93
7In Stock
50Expected 15/05/2026

Mfr. Part No.
M85049/84-12N03

Mouser Part No
523-85049/84-12N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12

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Datasheet

7In Stock

50Expected 15/05/2026

£51.93

£44.14

£40.81

£39.40

£37.98

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14

M85049/84-14N03
Amphenol PCD
1: £55.28
21In Stock

Mfr. Part No.
M85049/84-14N03

Mouser Part No
523-85049/84-14N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14

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Datasheet

21In Stock

£55.28

£50.70

£43.77

£42.89

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-18N03
Amphenol PCD
1: £57.68
21In Stock

Mfr. Part No.
M85049/84-18N03

Mouser Part No
523-85049/84-18N03

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

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Datasheet

21In Stock

£57.68

£51.27

£45.67

£44.37

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-20N02
Amphenol PCD
1: £55.27
8In Stock

Mfr. Part No.
M85049/84-20N02

Mouser Part No
523-85049/84-20N02

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

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Datasheet

8In Stock

£55.27

£50.96

£47.96

£47.20

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 10

M85049/85-10N02
Amphenol PCD
1: £39.19
15In Stock
50Expected 06/05/2026

Mfr. Part No.
M85049/85-10N02

Mouser Part No
523-85049/85-10N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 10

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Datasheet

15In Stock

50Expected 06/05/2026

£39.19

£36.72

£35.76

£33.33

£32.00

Min.: 1
Mult.: 1

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

M85049/85-12N01
Amphenol PCD
1: £33.13
21In Stock

Mfr. Part No.
M85049/85-12N01

Mouser Part No
523-85049/85-12N01

Amphenol PCD

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

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Datasheet

21In Stock

£33.13

£28.81

£26.03

£26.02

View

Min.: 1
Mult.: 1

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

M85049/85-12N02
Amphenol PCD
1: £33.13
21In Stock

Mfr. Part No.
M85049/85-12N02

Mouser Part No
523-85049/85-12N02

Amphenol PCD

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

Learn More

Datasheet

21In Stock

£33.13

£31.59

£31.38

£29.55

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 85 Backshell Band Lock

M85049/85-16N02
Amphenol PCD
1: £41.61
39In Stock

Mfr. Part No.
M85049/85-16N02

Mouser Part No
523-85049/85-16N02

Amphenol PCD

Circular MIL Spec Backshells 85 Backshell Band Lock

Learn More

Datasheet

39In Stock

£41.61

£28.54

£26.57

£24.74

£24.69

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

M85049/85-18N02
Amphenol PCD
1: £40.99
6In Stock
25Expected 11/05/2026

Mfr. Part No.
M85049/85-18N02

Mouser Part No
523-85049/85-18N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

Learn More

Datasheet

6In Stock

25Expected 11/05/2026

£40.99

£36.46

£33.03

£29.88

View

Min.: 1
Mult.: 1

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