Connectors – Mouser Canada

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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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RoHS Compliant

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Part #

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

M85049/10-116N
Amphenol PCD
1: $139.78
13In Stock

Mfr. Part #
M85049/10-116N

Mouser Part #
523-85049/10-116N

Amphenol PCD

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

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Datasheet

13In Stock

$139.78

$127.76

$121.46

$103.23

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Min.: 1
Mult.: 1

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

M85049/10-25N
Amphenol PCD
1: $169.28
6In Stock
25Expected 2026-04-14

Mfr. Part #
M85049/10-25N

Mouser Part #
523-85049/10-25N

Amphenol PCD

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

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Datasheet

6In Stock

25Expected 2026-04-14

$169.28

$144.98

$137.78

$111.15

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 22

M85049/10-45N
Amphenol PCD
1: $218.43
17In Stock

Mfr. Part #
M85049/10-45N

Mouser Part #
523-85049/10-45N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 22

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Datasheet

17In Stock

$218.43

$200.46

$192.75

$186.30

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 28

M85049/10-57N
Amphenol PCD
1: $174.65
5In Stock

Mfr. Part #
M85049/10-57N

Mouser Part #
523-85049/10-57N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 28

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Datasheet

5In Stock

$174.65

$174.64

$167.59

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-13N
Amphenol PCD
1: $109.84
23In Stock
25Expected 2026-04-29

Mfr. Part #
M85049/11-13N

Mouser Part #
523-85049/11-13N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

23In Stock

25Expected 2026-04-29

$109.84

$98.53

$88.43

$81.52

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-17N
Amphenol PCD
1: $102.71
15In Stock

Mfr. Part #
M85049/11-17N

Mouser Part #
523-85049/11-17N

Amphenol PCD

Circular MIL Spec Backshells 11 Backshell Env

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Datasheet

15In Stock

$102.71

$93.45

$82.83

$79.33

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-18N
Amphenol PCD
1: $99.76
18In Stock
25Expected 2026-03-23

Mfr. Part #
M85049/11-18N

Mouser Part #
523-85049/11-18N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

18In Stock

25Expected 2026-03-23

$99.76

$87.73

$79.33

$72.34

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-19N
Amphenol PCD
1: $144.32
6In Stock

Mfr. Part #
M85049/11-19N

Mouser Part #
523-85049/11-19N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

6In Stock

$144.32

$134.11

$122.71

$122.31

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-22N
Amphenol PCD
1: $103.84
22In Stock

Mfr. Part #
M85049/11-22N

Mouser Part #
523-85049/11-22N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

22In Stock

$103.84

$91.32

$87.80

$84.87

$80.19

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-25N
Amphenol PCD
1: $108.05
1In Stock

Mfr. Part #
M85049/11-25N

Mouser Part #
523-85049/11-25N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

1In Stock

$108.05

$97.52

$87.91

$83.43

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 11

M85049/14S11N
Amphenol PCD
1: $32.80
32In Stock

Mfr. Part #
M85049/14S11N

Mouser Part #
523-85049/14S11N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 11

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Datasheet

32In Stock

$32.80

$30.79

$24.27

$21.77

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 13

M85049/14S13N
Amphenol PCD
1: $30.90
24In Stock

Mfr. Part #
M85049/14S13N

Mouser Part #
523-85049/14S13N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 13

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Datasheet

24In Stock

$30.90

$26.34

$26.31

$25.39

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 15

M85049/14S15N
Amphenol PCD
1: $44.93
30In Stock

Mfr. Part #
M85049/14S15N

Mouser Part #
523-85049/14S15N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 15

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Datasheet

30In Stock

$44.93

$36.04

$32.54

$23.13

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 21

M85049/14S21N
Amphenol PCD
1: $36.78
13In Stock

Mfr. Part #
M85049/14S21N

Mouser Part #
523-85049/14S21N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 21

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Datasheet

13In Stock

$36.78

$32.83

$30.52

$25.57

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1710N03
Amphenol PCD
1: $106.79
13In Stock

Mfr. Part #
M85049/1710N03

Mouser Part #
523-85049/1710N03

Amphenol PCD

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

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Datasheet

13In Stock

$106.79

$94.20

$87.26

$78.78

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

M85049/1712N02
Amphenol PCD
1: $103.11
16In Stock

Mfr. Part #
M85049/1712N02

Mouser Part #
523-85049/1712N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

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Datasheet

16In Stock

$103.11

$93.47

$82.28

$76.06

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

M85049/1712N04
Amphenol PCD
1: $98.45
13In Stock

Mfr. Part #
M85049/1712N04

Mouser Part #
523-85049/1712N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

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Datasheet

13In Stock

$98.45

$86.57

$83.24

$80.46

$76.01

Min.: 1
Mult.: 1

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

M85049/1716N05
Amphenol PCD
1: $108.68
14In Stock

Mfr. Part #
M85049/1716N05

Mouser Part #
523-85049/1716N05

Amphenol PCD

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

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Datasheet

14In Stock

$108.68

$100.22

$87.59

$83.92

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Min.: 1
Mult.: 1

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

M85049/1716N06
Amphenol PCD
1: $110.73
1In Stock
24Expected 2026-03-09

Mfr. Part #
M85049/1716N06

Mouser Part #
523-85049/1716N06

Amphenol PCD

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

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Datasheet

1In Stock

24Expected 2026-03-09

$110.73

$101.17

$85.98

$83.92

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 11

M85049/1811N01
Amphenol PCD
1: $90.84
23In Stock

Mfr. Part #
M85049/1811N01

Mouser Part #
523-85049/1811N01

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 11

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Datasheet

23In Stock

$90.84

$78.78

$71.91

$70.87

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 13

M85049/1813N02
Amphenol PCD
1: $83.27
29In Stock

Mfr. Part #
M85049/1813N02

Mouser Part #
523-85049/1813N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 13

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Datasheet

29In Stock

$83.27

$74.82

$71.48

$70.18

View

Min.: 1
Mult.: 1

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

M85049/1817N02
Amphenol PCD
1: $99.47
5In Stock

Mfr. Part #
M85049/1817N02

Mouser Part #
523-85049/1817N02

Amphenol PCD

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

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Datasheet

5In Stock

$99.47

$92.12

$79.93

$76.81

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1817N03
Amphenol PCD
1: $87.00
16In Stock

Mfr. Part #
M85049/1817N03

Mouser Part #
523-85049/1817N03

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

16In Stock

$87.00

$79.39

$78.48

$77.29

$73.71

Min.: 1
Mult.: 1

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

M85049/1819N04
Amphenol PCD
1: $90.06
9In Stock

Mfr. Part #
M85049/1819N04

Mouser Part #
523-85049/1819N04

Amphenol PCD

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

Learn More

Datasheet

9In Stock

$90.06

$78.24

$71.48

$62.11

Min.: 1
Mult.: 1

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

M85049/1819N05B
Amphenol PCD
1: $110.27
21In Stock

Mfr. Part #
M85049/1819N05B

Mouser Part #
523-85049/1819N05B

Amphenol PCD

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

Learn More

Datasheet

21In Stock

$110.27

$102.69

$89.92

$86.08

View

Min.: 1
Mult.: 1

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