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 ENV EMI/ RFI ST NIC SZ 19

M85049/1819N06
Amphenol PCD
1: $98.94
24In Stock

Mfr. Part No.
M85049/1819N06

Mouser Part No
523-85049/1819N06

Amphenol PCD

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

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Datasheet

24In Stock

$98.94

$91.21

$78.95

$77.21

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1819N07
Amphenol PCD
1: $97.84
22In Stock

Mfr. Part No.
M85049/1819N07

Mouser Part No
523-85049/1819N07

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

22In Stock

$97.84

$92.27

$84.35

$79.16

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1821N04
Amphenol PCD
1: $101.55
4In Stock

Mfr. Part No.
M85049/1821N04

Mouser Part No
523-85049/1821N04

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

4In Stock

$101.55

$92.00

$78.92

$77.65

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Min.: 1
Mult.: 1

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

M85049/1821N06
Amphenol PCD
1: $97.15
12In Stock
25Expected 11/5/2026

Mfr. Part No.
M85049/1821N06

Mouser Part No
523-85049/1821N06

Amphenol PCD

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

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Datasheet

12In Stock

25Expected 11/5/2026

$97.15

$90.10

$83.18

$74.62

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Min.: 1
Mult.: 1

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

M85049/1821N06A
Amphenol PCD
1: $103.36
22In Stock

Mfr. Part No.
M85049/1821N06A

Mouser Part No
523-85049/1821N06A

Amphenol PCD

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

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Datasheet

22In Stock

$103.36

$91.88

$82.05

Min.: 1
Mult.: 1

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

M85049/1823N03
Amphenol PCD
1: $102.22
10In Stock
50On Order

Mfr. Part No.
M85049/1823N03

Mouser Part No
523-85049/1823N03

Amphenol PCD

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

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Datasheet

10In Stock

50On Order

$102.22

$86.89

$81.44

$77.56

$73.86

Min.: 1
Mult.: 1

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

M85049/1823N08
Amphenol PCD
1: $111.87
19In Stock

Mfr. Part No.
M85049/1823N08

Mouser Part No
523-85049/1823N08

Amphenol PCD

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

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Datasheet

19In Stock

$111.87

$102.89

$93.39

$88.36

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Min.: 1
Mult.: 1

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

M85049/1825N07A
Amphenol PCD
1: $117.75
6In Stock

Mfr. Part No.
M85049/1825N07A

Mouser Part No
523-85049/1825N07A

Amphenol PCD

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

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Datasheet

6In Stock

$117.75

$105.92

$93.45

Min.: 1
Mult.: 1

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

M85049/1825N09
Amphenol PCD
1: $119.43
10In Stock

Mfr. Part No.
M85049/1825N09

Mouser Part No
523-85049/1825N09

Amphenol PCD

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

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Datasheet

10In Stock

$119.43

$101.53

$95.16

$90.63

$86.31

Min.: 1
Mult.: 1

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

M85049/1911N03
Amphenol PCD
1: $76.69
11In Stock
175On Order

Mfr. Part No.
M85049/1911N03

Mouser Part No
523-85049/1911N03

Amphenol PCD

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

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Datasheet

11In Stock

175On Order

$76.69

$72.53

$67.47

$63.04

View

Min.: 1
Mult.: 1

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

M85049/1913N03
Amphenol PCD
1: $80.31
31In Stock
50Expected 11/5/2026

Mfr. Part No.
M85049/1913N03

Mouser Part No
523-85049/1913N03

Amphenol PCD

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

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Datasheet

31In Stock

50Expected 11/5/2026

$80.31

$68.26

$59.41

$57.98

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Min.: 1
Mult.: 1

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

M85049/1915N04
Amphenol PCD
1: $73.18
24In Stock

Mfr. Part No.
M85049/1915N04

Mouser Part No
523-85049/1915N04

Amphenol PCD

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

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Datasheet

24In Stock

$73.18

$66.57

$66.55

$63.38

$60.37

Min.: 1
Mult.: 1

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

M85049/1917N03
Amphenol PCD
1: $84.86
25In Stock
25Expected 11/5/2026

Mfr. Part No.
M85049/1917N03

Mouser Part No
523-85049/1917N03

Amphenol PCD

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

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Datasheet

25In Stock

25Expected 11/5/2026

$84.86

$76.91

$76.89

$72.67

View

Min.: 1
Mult.: 1

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

M85049/1917N06
Amphenol PCD
1: $74.07
17In Stock
25Expected 9/3/2026

Mfr. Part No.
M85049/1917N06

Mouser Part No
523-85049/1917N06

Amphenol PCD

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

Learn More

Datasheet

17In Stock

25Expected 9/3/2026

$74.07

$66.26

$62.29

$59.91

View

Min.: 1
Mult.: 1

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

M85049/1917N06A
Amphenol PCD
1: $94.17
14In Stock

Mfr. Part No.
M85049/1917N06A

Mouser Part No
523-85049/1917N06A

Amphenol PCD

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

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Datasheet

14In Stock

$94.17

$86.68

$86.67

$85.96

View

Min.: 1
Mult.: 1

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

M85049/1919N04
Amphenol PCD
1: $86.08
29In Stock

Mfr. Part No.
M85049/1919N04

Mouser Part No
523-85049/1919N04

Amphenol PCD

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

Learn More

Datasheet

29In Stock

$86.08

$73.17

$68.58

$65.32

$62.20

Min.: 1
Mult.: 1

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

M85049/1919N06
Amphenol PCD
1: $89.35
25In Stock

Mfr. Part No.
M85049/1919N06

Mouser Part No
523-85049/1919N06

Amphenol PCD

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

Learn More

Datasheet

25In Stock

$89.35

$82.79

$70.56

$68.49

View

Min.: 1
Mult.: 1

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

M85049/1921N04
Amphenol PCD
1: $88.95
16In Stock
25Expected 9/3/2026

Mfr. Part No.
M85049/1921N04

Mouser Part No
523-85049/1921N04

Amphenol PCD

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

Learn More

Datasheet

16In Stock

25Expected 9/3/2026

$88.95

$87.33

$87.32

$80.55

View

Min.: 1
Mult.: 1

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

M85049/1921N05
Amphenol PCD
1: $103.74
25In Stock

Mfr. Part No.
M85049/1921N05

Mouser Part No
523-85049/1921N05

Amphenol PCD

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

Learn More

Datasheet

25In Stock

$103.74

$79.81

$76.73

$75.24

View

Min.: 1
Mult.: 1

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

M85049/1921N06
Amphenol PCD
1: $88.99
10In Stock
25Expected 30/4/2026

Mfr. Part No.
M85049/1921N06

Mouser Part No
523-85049/1921N06

Amphenol PCD

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

Learn More

Datasheet

10In Stock

25Expected 30/4/2026

$88.99

$86.37

$76.37

$72.28

View

Min.: 1
Mult.: 1

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

M85049/1921N07
Amphenol PCD
1: $93.85
21In Stock

Mfr. Part No.
M85049/1921N07

Mouser Part No
523-85049/1921N07

Amphenol PCD

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

Learn More

Datasheet

21In Stock

$93.85

$79.79

$74.78

$71.21

$67.82

Min.: 1
Mult.: 1

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

M85049/1923N03
Amphenol PCD
1: $90.22
17In Stock

Mfr. Part No.
M85049/1923N03

Mouser Part No
523-85049/1923N03

Amphenol PCD

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

Learn More

Datasheet

17In Stock

$90.22

$82.22

$69.88

$68.39

View

Min.: 1
Mult.: 1

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

M85049/1923N05
Amphenol PCD
1: $105.83
16In Stock

Mfr. Part No.
M85049/1923N05

Mouser Part No
523-85049/1923N05

Amphenol PCD

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

Learn More

Datasheet

16In Stock

$105.83

$84.94

$73.89

Quote

Min.: 1
Mult.: 1

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

M85049/1923N06
Amphenol PCD
1: $99.54
8In Stock
50On Order

Mfr. Part No.
M85049/1923N06

Mouser Part No
523-85049/1923N06

Amphenol PCD

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

Learn More

Datasheet

8In Stock

50On Order

$99.54

$93.88

$93.87

$93.16

View

Min.: 1
Mult.: 1

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

M85049/1925N04
Amphenol PCD
1: $99.83
24In Stock
25Expected 10/3/2026

Mfr. Part No.
M85049/1925N04

Mouser Part No
523-85049/1925N04

Amphenol PCD

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

Learn More

Datasheet

24In Stock

25Expected 10/3/2026

$99.83

$91.46

$91.45

$87.13

View

Min.: 1
Mult.: 1

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