Connectors – Mouser Singapore

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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 17

M85049/1917W06A
Amphenol PCD
1: $100.20
13In Stock

Mfr. Part No.
M85049/1917W06A

Mouser Part No
523-85049/1917W06A

Amphenol PCD

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

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Datasheet

13In Stock

$100.20

$89.08

$87.05

$83.59

Quote

Min.: 1
Mult.: 1

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

M85049/1919W04
Amphenol PCD
1: $93.68
24In 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

24In Stock

$93.68

$81.23

$77.53

$75.79

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Min.: 1
Mult.: 1

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

M85049/1919W06
Amphenol PCD
1: $97.46
5In Stock
25Expected 8/10/2026

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

5In Stock

25Expected 8/10/2026

$97.46

$84.51

$81.25

$78.54

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Min.: 1
Mult.: 1

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

M85049/1921W04
Amphenol PCD
1: $95.72
23In Stock

Mfr. Part No.
M85049/1921W04

Mouser Part No
523-85049/1921W04

Amphenol PCD

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

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Datasheet

23In Stock

$95.72

$95.70

$94.04

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Min.: 1
Mult.: 1

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

M85049/1921W06
Amphenol PCD
1: $133.65
15In Stock

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

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Datasheet

15In Stock

$133.65

$131.69

$82.46

$81.10

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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: $105.97
24In Stock

Mfr. Part No.
M85049/1923W04B

Mouser Part No
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

$105.97

$94.21

$83.79

Min.: 1
Mult.: 1

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

M85049/1923W05
Amphenol PCD
1: $93.34
14In Stock

Mfr. Part No.
M85049/1923W05

Mouser Part No
523-85049/1923W05

Amphenol PCD

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

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Datasheet

14In Stock

$93.34

$88.74

$88.73

$87.73

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Min.: 1
Mult.: 1

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

M85049/1923W07
Amphenol PCD
1: $108.12
5In Stock
25Expected 24/11/2026

Mfr. Part No.
M85049/1923W07

Mouser Part No
523-85049/1923W07

Amphenol PCD

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

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Datasheet

5In Stock

25Expected 24/11/2026

$108.12

$96.11

$93.92

$87.31

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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: $112.49
24In Stock

Mfr. Part No.
M85049/1923W07B

Mouser Part No
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

$112.49

$99.99

$88.48

$84.59

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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: $204.58
10In Stock

Mfr. Part No.
M85049/1925W04

Mouser Part No
523-85049/1925W04

Amphenol PCD

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

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Datasheet

10In Stock

$204.58

$195.60

$134.83

$132.63

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Min.: 1
Mult.: 1

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

M85049/1925W07
Amphenol PCD
1: $176.27
10In Stock
25Expected 13/11/2026

Mfr. Part No.
M85049/1925W07

Mouser Part No
523-85049/1925W07

Amphenol PCD

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

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Datasheet

10In Stock

25Expected 13/11/2026

$176.27

$151.35

$148.66

$140.69

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Min.: 1
Mult.: 1

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

M85049/1925W08
Amphenol PCD
1: $113.45
14In Stock

Mfr. Part No.
M85049/1925W08

Mouser Part No
523-85049/1925W08

Amphenol PCD

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

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Datasheet

14In Stock

$113.45

$99.69

$94.86

$90.34

$86.02

Min.: 1
Mult.: 1

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

M85049/1925W09
Amphenol PCD
1: $118.52
1In Stock
25Expected 18/9/2026

Mfr. Part No.
M85049/1925W09

Mouser Part No
523-85049/1925W09

Amphenol PCD

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

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Datasheet

1In Stock

25Expected 18/9/2026

$118.52

$103.01

$102.99

$91.32

Quote

Min.: 1
Mult.: 1

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

M85049/1925W10C
Amphenol PCD
1: $125.11
15In Stock

Mfr. Part No.
M85049/1925W10C

Mouser Part No
523-85049/1925W10C

Amphenol PCD

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

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Datasheet

15In Stock

$125.11

$114.09

$110.09

$108.42

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL CRIMP RING ADPTR ST CAD SZ 17

M85049/20-17W
Amphenol PCD
1: $37.84
33In Stock
50Expected 24/11/2026

Mfr. Part No.
M85049/20-17W

Mouser Part No
523-85049/20-17W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL CRIMP RING ADPTR ST CAD SZ 17

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Datasheet

33In Stock

50Expected 24/11/2026

$37.84

$32.16

$30.14

$28.78

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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: $63.16
16In Stock
25Expected 28/10/2026

Mfr. Part No.
M85049/2111W02

Mouser Part No
523-85049/2111W02

Amphenol PCD

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

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Datasheet

16In Stock

25Expected 28/10/2026

$63.16

$54.25

$50.86

$48.44

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2111W03
Amphenol PCD
1: $64.48
7In Stock
50On Order

Mfr. Part No.
M85049/2111W03

Mouser Part No
523-85049/2111W03

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

Learn More

Datasheet

7In Stock

50On Order

$64.48

$55.76

$51.97

$49.76

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Min.: 1
Mult.: 1

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

M85049/2113W04
Amphenol PCD
1: $66.26
13In Stock

Mfr. Part No.
M85049/2113W04

Mouser Part No
523-85049/2113W04

Amphenol PCD

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

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Datasheet

13In Stock

$66.26

$57.22

$53.64

$51.07

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Min.: 1
Mult.: 1

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

M85049/2115W02
Amphenol PCD
1: $64.18
8In Stock

Mfr. Part No.
M85049/2115W02

Mouser Part No
523-85049/2115W02

Amphenol PCD

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

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Datasheet

8In Stock

$64.18

$55.80

$52.52

$52.50

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Min.: 1
Mult.: 1

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

M85049/2115W04
Amphenol PCD
1: $68.03
8In Stock
25Expected 10/11/2026

Mfr. Part No.
M85049/2115W04

Mouser Part No
523-85049/2115W04

Amphenol PCD

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

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Datasheet

8In Stock

25Expected 10/11/2026

$68.03

$59.15

$55.66

$53.90

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Min.: 1
Mult.: 1

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

M85049/2117W02
Amphenol PCD
1: $66.60
19In Stock

Mfr. Part No.
M85049/2117W02

Mouser Part No
523-85049/2117W02

Amphenol PCD

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

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Datasheet

19In Stock

$66.60

$57.09

$53.52

$50.96

View

Min.: 1
Mult.: 1

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

M85049/2117W03
Amphenol PCD
1: $67.90
15In Stock

Mfr. Part No.
M85049/2117W03

Mouser Part No
523-85049/2117W03

Amphenol PCD

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

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Datasheet

15In Stock

$67.90

$59.04

$55.56

$55.47

View

Min.: 1
Mult.: 1

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

M85049/2117W04A
Amphenol PCD
1: $72.11
21In Stock

Mfr. Part No.
M85049/2117W04A

Mouser Part No
523-85049/2117W04A

Amphenol PCD

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

Learn More

Datasheet

21In Stock

$72.11

$62.68

$59.00

$57.13

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117W05
Amphenol PCD
1: $72.46
13In Stock

Mfr. Part No.
M85049/2117W05

Mouser Part No
523-85049/2117W05

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

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Datasheet

13In Stock

$72.46

$61.89

$58.00

$55.24

View

Min.: 1
Mult.: 1

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

M85049/2117W06
Amphenol PCD
1: $74.20
11In Stock

Mfr. Part No.
M85049/2117W06

Mouser Part No
523-85049/2117W06

Amphenol PCD

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

Learn More

Datasheet

11In Stock

$74.20

$64.52

$60.71

$58.81

View

Min.: 1
Mult.: 1

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