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 ST NIC SZ 15

M85049/2115N03A
Amphenol PCD
1: £34.16
2In Stock

Mfr. Part No.
M85049/2115N03A

Mouser Part No
523-85049/2115N03A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

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Datasheet

2In Stock

£34.16

£29.70

£28.42

£27.50

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N04
Amphenol PCD
1: £32.85
16In Stock

Mfr. Part No.
M85049/2115N04

Mouser Part No
523-85049/2115N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

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Datasheet

16In Stock

£32.85

£29.07

£24.71

£23.60

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N05B
Amphenol PCD
1: £36.60
25In Stock

Mfr. Part No.
M85049/2115N05B

Mouser Part No
523-85049/2115N05B

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

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Datasheet

25In Stock

£36.60

£31.26

£30.06

£29.05

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A04
Amphenol PCD
1: £46.16
18In Stock

Mfr. Part No.
M85049/2117A04

Mouser Part No
523-85049/2117A04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

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Datasheet

18In Stock

£46.16

£46.15

£35.74

£35.62

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A06
Amphenol PCD
1: £36.53
14In Stock

Mfr. Part No.
M85049/2117A06

Mouser Part No
523-85049/2117A06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

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Datasheet

14In Stock

£36.53

£32.41

£28.55

£27.38

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N02A
Amphenol PCD
1: £32.79
7In Stock

Mfr. Part No.
M85049/2117N02A

Mouser Part No
523-85049/2117N02A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

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Datasheet

7In Stock

£32.79

£28.50

£27.27

£26.40

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N04
Amphenol PCD
1: £35.12
1In Stock
25Expected 16/03/2026

Mfr. Part No.
M85049/2117N04

Mouser Part No
523-85049/2117N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

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Datasheet

1In Stock

25Expected 16/03/2026

£35.12

£31.29

£26.58

£25.85

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N05
Amphenol PCD
1: £39.60
21In Stock

Mfr. Part No.
M85049/2117N05

Mouser Part No
523-85049/2117N05

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

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Datasheet

21In Stock

£39.60

£35.37

£31.99

£28.84

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N05A
Amphenol PCD
1: £36.39
19In Stock

Mfr. Part No.
M85049/2117N05A

Mouser Part No
523-85049/2117N05A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

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Datasheet

19In Stock

£36.39

£30.93

£28.98

£27.60

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06
Amphenol PCD
1: £34.47
33In Stock

Mfr. Part No.
M85049/2117N06

Mouser Part No
523-85049/2117N06

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

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Datasheet

33In Stock

£34.47

£30.03

£28.71

£28.51

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06A
Amphenol PCD
1: £37.63
16In Stock

Mfr. Part No.
M85049/2117N06A

Mouser Part No
523-85049/2117N06A

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

Learn More

Datasheet

16In Stock

£37.63

£32.14

£30.90

£29.87

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

M85049/2119A07B
Amphenol PCD
1: £39.86
16In Stock

Mfr. Part No.
M85049/2119A07B

Mouser Part No
523-85049/2119A07B

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

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Datasheet

16In Stock

£39.86

£34.04

£32.73

£31.64

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2119N04
Amphenol PCD
1: £33.73
2In Stock
25Expected 09/03/2026

Mfr. Part No.
M85049/2119N04

Mouser Part No
523-85049/2119N04

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

Learn More

Datasheet

2In Stock

25Expected 09/03/2026

£33.73

£33.10

£30.56

£30.55

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N06
Amphenol PCD
1: £35.09
17In Stock

Mfr. Part No.
M85049/2119N06

Mouser Part No
523-85049/2119N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

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Datasheet

17In Stock

£35.09

£31.56

£26.88

£26.25

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N07
Amphenol PCD
1: £37.57
8In Stock

Mfr. Part No.
M85049/2119N07

Mouser Part No
523-85049/2119N07

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Learn More

Datasheet

8In Stock

£37.57

£33.31

£29.39

£28.17

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

M85049/2121A08
Amphenol PCD
1: £39.77
13In Stock

Mfr. Part No.
M85049/2121A08

Mouser Part No
523-85049/2121A08

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

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Datasheet

13In Stock

£39.77

£35.19

£31.17

£29.82

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

M85049/2121N03
Amphenol PCD
1: £35.05
21In Stock

Mfr. Part No.
M85049/2121N03

Mouser Part No
523-85049/2121N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

Learn More

Datasheet

21In Stock

£35.05

£32.41

£27.54

£27.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

M85049/2123N05
Amphenol PCD
1: £29.26
8In Stock

Mfr. Part No.
M85049/2123N05

Mouser Part No
523-85049/2123N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

Learn More

Datasheet

8In Stock

£29.26

£28.41

£28.15

£27.19

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

M85049/2123N08A
Amphenol PCD
1: £42.77
10In Stock

Mfr. Part No.
M85049/2123N08A

Mouser Part No
523-85049/2123N08A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

Learn More

Datasheet

10In Stock

£42.77

£38.32

£34.13

£32.56

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A06A
Amphenol PCD
1: £41.47
15In Stock

Mfr. Part No.
M85049/2125A06A

Mouser Part No
523-85049/2125A06A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Learn More

Datasheet

15In Stock

£41.47

£35.96

£34.57

£33.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A07
Amphenol PCD
1: £41.47
4In Stock
25Expected 04/03/2026

Mfr. Part No.
M85049/2125A07

Mouser Part No
523-85049/2125A07

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Learn More

Datasheet

4In Stock

25Expected 04/03/2026

£41.47

£35.96

£34.57

£33.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A10
Amphenol PCD
1: £45.27
20In Stock

Mfr. Part No.
M85049/2125A10

Mouser Part No
523-85049/2125A10

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Learn More

Datasheet

20In Stock

£45.27

£44.69

£44.68

£41.86

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N05
Amphenol PCD
1: £39.64
1In Stock
25Expected 18/05/2026

Mfr. Part No.
M85049/2125N05

Mouser Part No
523-85049/2125N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Learn More

Datasheet

1In Stock

25Expected 18/05/2026

£39.64

£33.85

£32.55

£31.45

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N06A
Amphenol PCD
1: £41.47
16In Stock

Mfr. Part No.
M85049/2125N06A

Mouser Part No
523-85049/2125N06A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Learn More

Datasheet

16In Stock

£41.47

£35.96

£34.57

£33.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N08A
Amphenol PCD
1: £43.94
13In Stock

Mfr. Part No.
M85049/2125N08A

Mouser Part No
523-85049/2125N08A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Learn More

Datasheet

13In Stock

£43.94

£39.32

£35.08

£33.45

£32.48

Min.: 1
Mult.: 1

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