Connectors – Mouser South Africa

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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 ST OD CAD SZ 17

M85049/1817W03A
Amphenol PCD
1: $85.65
3In Stock

Mfr. Part No.
M85049/1817W03A

Mouser Part No
523-85049/1817W03A

Amphenol PCD

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

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Datasheet

3In Stock

$85.65

$77.87

$68.86

$60.08

$54.87

Min.: 1
Mult.: 1

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

M85049/1817W04
Amphenol PCD
1: $63.37
23In Stock
100Expected 2026/05/12

Mfr. Part No.
M85049/1817W04

Mouser Part No
523-85049/1817W04

Amphenol PCD

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

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Datasheet

23In Stock

100Expected 2026/05/12

$63.37

$57.66

$53.97

$53.91

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Min.: 1
Mult.: 1

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

M85049/1817W04A
Amphenol PCD
1: $88.57
10In Stock

Mfr. Part No.
M85049/1817W04A

Mouser Part No
523-85049/1817W04A

Amphenol PCD

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

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Datasheet

10In Stock

$88.57

$80.24

$71.19

$65.05

View

Min.: 1
Mult.: 1

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

M85049/1817W06A
Amphenol PCD
1: $82.40
13In Stock

Mfr. Part No.
M85049/1817W06A

Mouser Part No
523-85049/1817W06A

Amphenol PCD

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

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Datasheet

13In Stock

$82.40

$76.50

$75.37

$66.05

View

Min.: 1
Mult.: 1

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

M85049/1819W03
Amphenol PCD
1: $68.51
20In Stock

Mfr. Part No.
M85049/1819W03

Mouser Part No
523-85049/1819W03

Amphenol PCD

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

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Datasheet

20In Stock

$68.51

$60.77

$58.09

$55.32

$53.58

Min.: 1
Mult.: 1

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

M85049/1819W04
Amphenol PCD
1: $90.70
7In Stock
25Expected 2026/04/17

Mfr. Part No.
M85049/1819W04

Mouser Part No
523-85049/1819W04

Amphenol PCD

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

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Datasheet

7In Stock

25Expected 2026/04/17

$90.70

$72.59

$68.56

$61.12

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Min.: 1
Mult.: 1

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

M85049/1819W06A
Amphenol PCD
1: $76.00
7In Stock

Mfr. Part No.
M85049/1819W06A

Mouser Part No
523-85049/1819W06A

Amphenol PCD

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

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Datasheet

7In Stock

$76.00

$70.59

$62.08

$59.34

View

Min.: 1
Mult.: 1

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

M85049/1821W04
Amphenol PCD
1: $76.58
16In Stock
25Expected 2026/03/04

Mfr. Part No.
M85049/1821W04

Mouser Part No
523-85049/1821W04

Amphenol PCD

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

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Datasheet

16In Stock

25Expected 2026/03/04

$76.58

$65.10

$61.02

$58.12

$56.55

Min.: 1
Mult.: 1

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

M85049/1821W07A
Amphenol PCD
1: $82.50
10In Stock

Mfr. Part No.
M85049/1821W07A

Mouser Part No
523-85049/1821W07A

Amphenol PCD

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

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Datasheet

10In Stock

$82.50

$74.21

$73.51

$72.33

View

Min.: 1
Mult.: 1

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

M85049/1821W08B
Amphenol PCD
1: $85.84
6In Stock
25Expected 2026/05/18

Mfr. Part No.
M85049/1821W08B

Mouser Part No
523-85049/1821W08B

Amphenol PCD

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

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Datasheet

6In Stock

25Expected 2026/05/18

$85.84

$77.21

$74.25

$71.77

$67.80

Min.: 1
Mult.: 1

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

M85049/1823W06
Amphenol PCD
1: $80.46
20In Stock
25Expected 2026/03/04

Mfr. Part No.
M85049/1823W06

Mouser Part No
523-85049/1823W06

Amphenol PCD

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

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Datasheet

20In Stock

25Expected 2026/03/04

$80.46

$70.91

$66.07

$63.20

Min.: 1
Mult.: 1

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

M85049/1823W09
Amphenol PCD
1: $89.12
1In Stock
11Expected 2026/03/23

Mfr. Part No.
M85049/1823W09

Mouser Part No
523-85049/1823W09

Amphenol PCD

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

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Datasheet

1In Stock

11Expected 2026/03/23

$89.12

$81.27

$78.13

$75.18

View

Min.: 1
Mult.: 1

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

M85049/1825W04
Amphenol PCD
1: $99.29
13In Stock
25Expected 2026/04/06

Mfr. Part No.
M85049/1825W04

Mouser Part No
523-85049/1825W04

Amphenol PCD

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

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Datasheet

13In Stock

25Expected 2026/04/06

$99.29

$90.73

$80.03

$72.36

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1825W09A
Amphenol PCD
1: $111.19
11In Stock

Mfr. Part No.
M85049/1825W09A

Mouser Part No
523-85049/1825W09A

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

11In Stock

$111.19

$102.23

$84.57

$76.41

View

Min.: 1
Mult.: 1

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

M85049/1913W02
Amphenol PCD
1: $68.83
16In Stock

Mfr. Part No.
M85049/1913W02

Mouser Part No
523-85049/1913W02

Amphenol PCD

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

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Datasheet

16In Stock

$68.83

$61.53

$55.37

$51.08

View

Min.: 1
Mult.: 1

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

M85049/1913W03
Amphenol PCD
1: $51.63
2In Stock
25On Order

Mfr. Part No.
M85049/1913W03

Mouser Part No
523-85049/1913W03

Amphenol PCD

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

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Datasheet

2In Stock

25On Order

$51.63

$49.58

$45.95

$44.72

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 15

M85049/1915W03
Amphenol PCD
1: $58.77
20In Stock

Mfr. Part No.
M85049/1915W03

Mouser Part No
523-85049/1915W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 15

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Datasheet

20In Stock

$58.77

$58.29

$53.52

$49.69

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 15

M85049/1915W04
Amphenol PCD
1: $63.48
13In Stock
25Expected 2026/03/16

Mfr. Part No.
M85049/1915W04

Mouser Part No
523-85049/1915W04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 15

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Datasheet

13In Stock

25Expected 2026/03/16

$63.48

$55.78

$52.29

$49.79

$47.76

Min.: 1
Mult.: 1

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

M85049/1917W02
Amphenol PCD
1: $60.88
4In Stock

Mfr. Part No.
M85049/1917W02

Mouser Part No
523-85049/1917W02

Amphenol PCD

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

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Datasheet

4In Stock

$60.88

$57.64

$57.63

$53.11

View

Min.: 1
Mult.: 1

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

M85049/1917W04
Amphenol PCD
1: $77.91
1In Stock
50On Order

Mfr. Part No.
M85049/1917W04

Mouser Part No
523-85049/1917W04

Amphenol PCD

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

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Datasheet

1In Stock

50On Order

$77.91

$70.20

$62.71

$56.00

View

Min.: 1
Mult.: 1

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

M85049/1919W04
Amphenol PCD
1: $67.97
15In Stock

Mfr. Part No.
M85049/1919W04

Mouser Part No
523-85049/1919W04

Amphenol PCD

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

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Datasheet

15In Stock

$67.97

$60.19

$60.17

$59.29

View

Min.: 1
Mult.: 1

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

M85049/1919W06
Amphenol PCD
1: $70.69
18In Stock

Mfr. Part No.
M85049/1919W06

Mouser Part No
523-85049/1919W06

Amphenol PCD

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

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Datasheet

18In Stock

$70.69

$62.15

$55.64

Quote

Min.: 1
Mult.: 1

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

M85049/1919W07
Amphenol PCD
1: $83.27
7In Stock
25Expected 2026/03/09

Mfr. Part No.
M85049/1919W07

Mouser Part No
523-85049/1919W07

Amphenol PCD

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

Learn More

Datasheet

7In Stock

25Expected 2026/03/09

$83.27

$74.54

$63.34

$55.95

$52.35

Min.: 1
Mult.: 1

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

M85049/1921W05
Amphenol PCD
1: $71.05
5In Stock
25Expected 2026/03/09

Mfr. Part No.
M85049/1921W05

Mouser Part No
523-85049/1921W05

Amphenol PCD

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

Learn More

Datasheet

5In Stock

25Expected 2026/03/09

$71.05

$66.73

$66.72

$66.42

View

Min.: 1
Mult.: 1

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

M85049/1921W06
Amphenol PCD
1: $72.44
1In Stock
25Expected 2026/06/10

Mfr. Part No.
M85049/1921W06

Mouser Part No
523-85049/1921W06

Amphenol PCD

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

Learn More

Datasheet

1In Stock

25Expected 2026/06/10

$72.44

$65.10

$55.34

$54.51

$53.13

Min.: 1
Mult.: 1

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