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 NON ENV EMI/RFI ST NIC SZ 17

M85049/1917N06A
Amphenol PCD
1: £49.07
14In Stock

Mfr. Part No.
M85049/1917N06A

Mouser Part No
523-85049/1917N06A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

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Datasheet

14In Stock

£49.07

£46.69

£43.86

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 19

M85049/1919N04
Amphenol PCD
1: £46.50
29In Stock

Mfr. Part No.
M85049/1919N04

Mouser Part No
523-85049/1919N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 19

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Datasheet

29In Stock

£46.50

£39.52

£37.04

£35.28

£33.65

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1919N06
Amphenol PCD
1: £48.26
25In Stock

Mfr. Part No.
M85049/1919N06

Mouser Part No
523-85049/1919N06

Amphenol PCD

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

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Datasheet

25In Stock

£48.26

£44.72

£38.11

£36.99

£35.02

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21

M85049/1921N04
Amphenol PCD
1: £45.59
16In Stock
25Expected 09/03/2026

Mfr. Part No.
M85049/1921N04

Mouser Part No
523-85049/1921N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21

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Datasheet

16In Stock

25Expected 09/03/2026

£45.59

£43.84

£42.48

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21

M85049/1921N05
Amphenol PCD
1: £54.24
25In Stock

Mfr. Part No.
M85049/1921N05

Mouser Part No
523-85049/1921N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21

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Datasheet

25In Stock

£54.24

£49.82

£46.21

£44.62

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1921N06
Amphenol PCD
1: £48.07
10In Stock
25Expected 30/04/2026

Mfr. Part No.
M85049/1921N06

Mouser Part No
523-85049/1921N06

Amphenol PCD

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

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Datasheet

10In Stock

25Expected 30/04/2026

£48.07

£46.65

£41.25

£39.04

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1921N07
Amphenol PCD
1: £50.70
21In Stock

Mfr. Part No.
M85049/1921N07

Mouser Part No
523-85049/1921N07

Amphenol PCD

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

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Datasheet

21In Stock

£50.70

£43.09

£40.39

£38.46

£36.99

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

M85049/1923N03
Amphenol PCD
1: £48.73
17In Stock

Mfr. Part No.
M85049/1923N03

Mouser Part No
523-85049/1923N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

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Datasheet

17In Stock

£48.73

£44.41

£37.74

£36.94

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

M85049/1923N05
Amphenol PCD
1: £52.33
16In Stock

Mfr. Part No.
M85049/1923N05

Mouser Part No
523-85049/1923N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

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Datasheet

16In Stock

£52.33

£47.77

£40.84

£40.23

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

M85049/1923N06
Amphenol PCD
1: £53.76
8In Stock
50On Order

Mfr. Part No.
M85049/1923N06

Mouser Part No
523-85049/1923N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23

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Datasheet

8In Stock

50On Order

£53.76

£48.43

£41.15

£41.10

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

M85049/1925N06
Amphenol PCD
1: £54.17
15In Stock

Mfr. Part No.
M85049/1925N06

Mouser Part No
523-85049/1925N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

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Datasheet

15In Stock

£54.17

£51.85

£50.76

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

M85049/1925N09
Amphenol PCD
1: £57.20
17In Stock

Mfr. Part No.
M85049/1925N09

Mouser Part No
523-85049/1925N09

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

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Datasheet

17In Stock

£57.20

£56.14

£50.97

£49.65

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 11

M85049/2111A02A
Amphenol PCD
1: £31.04
11In Stock

Mfr. Part No.
M85049/2111A02A

Mouser Part No
523-85049/2111A02A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 11

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Datasheet

11In Stock

£31.04

£26.98

£25.82

£24.99

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

M85049/2111N02
Amphenol PCD
1: £31.33
3In Stock
40Expected 13/05/2026

Mfr. Part No.
M85049/2111N02

Mouser Part No
523-85049/2111N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

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Datasheet

3In Stock

40Expected 13/05/2026

£31.33

£28.46

£24.71

£24.37

£23.03

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

M85049/2111N03
Amphenol PCD
1: £33.30
19In Stock

Mfr. Part No.
M85049/2111N03

Mouser Part No
523-85049/2111N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

Learn More

Datasheet

19In Stock

£33.30

£24.37

£24.16

£22.84

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

M85049/2111N03A
Amphenol PCD
1: £35.06
1In Stock
25Expected 16/03/2026

Mfr. Part No.
M85049/2111N03A

Mouser Part No
523-85049/2111N03A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

Learn More

Datasheet

1In Stock

25Expected 16/03/2026

£35.06

£32.04

£27.22

£25.47

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

M85049/2113A03
Amphenol PCD
1: £32.22
9In Stock

Mfr. Part No.
M85049/2113A03

Mouser Part No
523-85049/2113A03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

Learn More

Datasheet

9In Stock

£32.22

£29.25

£25.43

£25.07

£23.68

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

M85049/2113A04
Amphenol PCD
1: £32.53
2In Stock
25Expected 27/04/2026

Mfr. Part No.
M85049/2113A04

Mouser Part No
523-85049/2113A04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

Learn More

Datasheet

2In Stock

25Expected 27/04/2026

£32.53

£30.60

£29.43

£29.20

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

M85049/2113N02
Amphenol PCD
1: £34.85
5In Stock

Mfr. Part No.
M85049/2113N02

Mouser Part No
523-85049/2113N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

Learn More

Datasheet

5In Stock

£34.85

£31.74

£26.97

£26.71

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

M85049/2113N03
Amphenol PCD
1: £32.22
21In Stock
25On Order

Mfr. Part No.
M85049/2113N03

Mouser Part No
523-85049/2113N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

Learn More

Datasheet

21In Stock

25On Order

£32.22

£29.25

£24.92

£22.89

£22.27

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

M85049/2113N04
Amphenol PCD
1: £36.29
18In Stock

Mfr. Part No.
M85049/2113N04

Mouser Part No
523-85049/2113N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

Learn More

Datasheet

18In Stock

£36.29

£33.15

£27.16

£25.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

M85049/2113N04A
Amphenol PCD
1: £32.21
13In Stock

Mfr. Part No.
M85049/2113N04A

Mouser Part No
523-85049/2113N04A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

Learn More

Datasheet

13In Stock

£32.21

£30.47

£29.87

£29.80

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 15

M85049/2115A05
Amphenol PCD
1: £35.16
30In Stock

Mfr. Part No.
M85049/2115A05

Mouser Part No
523-85049/2115A05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 15

Learn More

Datasheet

30In Stock

£35.16

£32.36

£27.51

£26.74

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N02
Amphenol PCD
1: £30.92
12In Stock

Mfr. Part No.
M85049/2115N02

Mouser Part No
523-85049/2115N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Learn More

Datasheet

12In Stock

£30.92

£28.00

£23.79

£23.44

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N03
Amphenol PCD
1: £35.89
20In Stock
25On Order

Mfr. Part No.
M85049/2115N03

Mouser Part No
523-85049/2115N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Learn More

Datasheet

20In Stock

25On Order

£35.89

£35.86

£26.57

£24.44

£22.90

Min.: 1
Mult.: 1

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