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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Part #

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

M85049/1921W06
Amphenol PCD
1: $111.18
1In Stock
25Expected 2026-06-10

Mfr. Part #
M85049/1921W06

Mouser Part #
523-85049/1921W06

Amphenol PCD

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

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Datasheet

1In Stock

25Expected 2026-06-10

$111.18

$99.91

$84.92

$83.66

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Min.: 1
Mult.: 1

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

M85049/1921W08
Amphenol PCD
1: $104.76
17In Stock
25Expected 2026-05-28

Mfr. Part #
M85049/1921W08

Mouser Part #
523-85049/1921W08

Amphenol PCD

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

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Datasheet

17In Stock

25Expected 2026-05-28

$104.76

$85.21

$81.45

$73.71

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Min.: 1
Mult.: 1

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

M85049/1923W04B
Amphenol PCD
1: $119.59
24In Stock

Mfr. Part #
M85049/1923W04B

Mouser Part #
523-85049/1923W04B

Amphenol PCD

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

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Datasheet

24In Stock

$119.59

$106.31

$102.22

$98.81

$93.34

Min.: 1
Mult.: 1

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

M85049/1923W06
Amphenol PCD
1: $118.70
1In Stock

Mfr. Part #
M85049/1923W06

Mouser Part #
523-85049/1923W06

Amphenol PCD

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

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Datasheet

1In Stock

$118.70

$100.90

$94.57

$90.06

$85.78

Min.: 1
Mult.: 1

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

M85049/1923W07
Amphenol PCD
1: $122.02
6In Stock
25Expected 2026-06-22

Mfr. Part #
M85049/1923W07

Mouser Part #
523-85049/1923W07

Amphenol PCD

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

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Datasheet

6In Stock

25Expected 2026-06-22

$122.02

$110.97

$100.62

$95.25

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Min.: 1
Mult.: 1

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

M85049/1923W07B
Amphenol PCD
1: $125.47
24In Stock

Mfr. Part #
M85049/1923W07B

Mouser Part #
523-85049/1923W07B

Amphenol PCD

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

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Datasheet

24In Stock

$125.47

$112.85

$99.87

$95.11

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Min.: 1
Mult.: 1

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

M85049/1923W08
Amphenol PCD
1: $108.40
3In Stock

Mfr. Part #
M85049/1923W08

Mouser Part #
523-85049/1923W08

Amphenol PCD

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

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Datasheet

3In Stock

$108.40

$105.59

$105.58

$102.18

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Min.: 1
Mult.: 1

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

M85049/1925W04
Amphenol PCD
1: $154.97
17In Stock

Mfr. Part #
M85049/1925W04

Mouser Part #
523-85049/1925W04

Amphenol PCD

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

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Datasheet

17In Stock

$154.97

$129.54

$126.15

$125.13

View

Min.: 1
Mult.: 1

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

M85049/1925W05
Amphenol PCD
1: $140.85
12In Stock

Mfr. Part #
M85049/1925W05

Mouser Part #
523-85049/1925W05

Amphenol PCD

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

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Datasheet

12In Stock

$140.85

$128.71

$114.05

$103.34

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Min.: 1
Mult.: 1

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

M85049/1925W09
Amphenol PCD
1: $132.24
16In Stock

Mfr. Part #
M85049/1925W09

Mouser Part #
523-85049/1925W09

Amphenol PCD

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

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Datasheet

16In Stock

$132.24

$125.13

$125.12

$124.43

View

Min.: 1
Mult.: 1

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

M85049/1925W10C
Amphenol PCD
1: $141.20
2In Stock

Mfr. Part #
M85049/1925W10C

Mouser Part #
523-85049/1925W10C

Amphenol PCD

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

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Datasheet

2In Stock

$141.20

$128.77

$112.68

$111.66

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 20 Backshell Crmp Rng

M85049/20-13W
Amphenol PCD
1: $36.39
46In Stock

Mfr. Part #
M85049/20-13W

Mouser Part #
523-85049/20-13W

Amphenol PCD

Circular MIL Spec Backshells 20 Backshell Crmp Rng

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Datasheet

46In Stock

$36.39

$32.90

$31.56

$30.70

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 11

M85049/2111W02
Amphenol PCD
1: $69.29
25In Stock

Mfr. Part #
M85049/2111W02

Mouser Part #
523-85049/2111W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 11

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Datasheet

25In Stock

$69.29

$58.90

$55.35

$52.57

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 11

M85049/2111W02A
Amphenol PCD
1: $71.16
1In Stock

Mfr. Part #
M85049/2111W02A

Mouser Part #
523-85049/2111W02A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 11

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Datasheet

1In Stock

$71.16

$60.77

$58.42

$56.47

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

M85049/2113W02
Amphenol PCD
1: $70.38
2In Stock
25Expected 2026-03-09

Mfr. Part #
M85049/2113W02

Mouser Part #
523-85049/2113W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

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Datasheet

2In Stock

25Expected 2026-03-09

$70.38

$62.26

$62.24

$61.46

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

M85049/2113W03
Amphenol PCD
1: $69.72
17In Stock

Mfr. Part #
M85049/2113W03

Mouser Part #
523-85049/2113W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

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Datasheet

17In Stock

$69.72

$60.62

$57.99

$56.13

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

M85049/2113W04
Amphenol PCD
1: $81.77
26In Stock

Mfr. Part #
M85049/2113W04

Mouser Part #
523-85049/2113W04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 13

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Datasheet

26In Stock

$81.77

$73.00

$66.02

$60.76

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

M85049/2115W02
Amphenol PCD
1: $71.04
12In Stock

Mfr. Part #
M85049/2115W02

Mouser Part #
523-85049/2115W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

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Datasheet

12In Stock

$71.04

$64.13

$64.12

$63.67

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

M85049/2115W05
Amphenol PCD
1: $77.55
28In Stock

Mfr. Part #
M85049/2115W05

Mouser Part #
523-85049/2115W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

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Datasheet

28In Stock

$77.55

$66.22

$63.66

$61.58

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 17

M85049/2117W02
Amphenol PCD
1: $72.90
22In Stock

Mfr. Part #
M85049/2117W02

Mouser Part #
523-85049/2117W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 17

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Datasheet

22In Stock

$72.90

$61.97

$58.07

$55.31

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117W05
Amphenol PCD
1: $79.02
22In Stock

Mfr. Part #
M85049/2117W05

Mouser Part #
523-85049/2117W05

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

Learn More

Datasheet

22In Stock

$79.02

$67.17

$62.95

$59.96

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 17

M85049/2117W06
Amphenol PCD
1: $82.11
25In Stock

Mfr. Part #
M85049/2117W06

Mouser Part #
523-85049/2117W06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 17

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Datasheet

25In Stock

$82.11

$73.60

$73.59

$71.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 19

M85049/2119W07
Amphenol PCD
1: $84.55
9In Stock

Mfr. Part #
M85049/2119W07

Mouser Part #
523-85049/2119W07

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 19

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Datasheet

9In Stock

$84.55

$71.73

$71.72

$68.09

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 21

M85049/2121W03
Amphenol PCD
1: $77.24
5In Stock
25Expected 2026-05-18

Mfr. Part #
M85049/2121W03

Mouser Part #
523-85049/2121W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 21

Learn More

Datasheet

5In Stock

25Expected 2026-05-18

$77.24

$65.96

$61.11

$61.08

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 21

M85049/2121W05
Amphenol PCD
1: $80.97
29In Stock

Mfr. Part #
M85049/2121W05

Mouser Part #
523-85049/2121W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 21

Learn More

Datasheet

29In Stock

$80.97

$68.83

$64.50

$61.43

View

Min.: 1
Mult.: 1

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