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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 NON ENV EMI/RFI ST NIC SZ 19

M85049/1919N04
Amphenol PCD
1: NT$2,021.58
26In Stock

Mfr. Part #
M85049/1919N04

Mouser Part #
523-85049/1919N04

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

Datasheet

26In Stock

NT$2,021.58

NT$1,819.03

NT$1,767.41

NT$1,751.99

NT$1,668.46

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

M85049/2113A04
Amphenol PCD
1: NT$1,409.98
25In Stock

Mfr. Part #
M85049/2113A04

Mouser Part #
523-85049/2113A04

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

Datasheet

25In Stock

NT$1,409.98

NT$1,273.39

NT$1,256.54

NT$1,156.16

View

Min.: 1
Mult.: 1

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

M85049/79-19N03
Amphenol PCD
1: NT$2,674.05
23In Stock

Mfr. Part #
M85049/79-19N03

Mouser Part #
523-85049/79-19N03

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

Datasheet

23In Stock

NT$2,674.05

NT$2,597.69

NT$2,597.33

NT$2,491.93

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/84-10ZP03
Amphenol PCD
1: NT$3,052.63
18In Stock

Mfr. Part #
M85049/84-10ZP03

Mouser Part #
523-M85049/84-10ZP03

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

18In Stock

NT$3,052.63

NT$2,713.49

NT$2,652.18

NT$2,522.76

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-20ZP01
Amphenol PCD
1: NT$2,339.93
22In Stock

Mfr. Part #
M85049/85-20ZP01

Mouser Part #
523-M85049/85-20ZP01

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

22In Stock

NT$2,339.93

NT$2,029.11

NT$1,982.86

NT$1,782.10

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-20ZP02
Amphenol PCD
1: NT$2,411.99
21In Stock

Mfr. Part #
M85049/82-20ZP02

Mouser Part #
523-M85049/82-20ZP02

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

21In Stock

NT$2,411.99

NT$2,091.85

NT$2,044.17

NT$1,972.83

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-24ZP03
Amphenol PCD
1: NT$2,704.52
20In Stock

Mfr. Part #
M85049/82-24ZP03

Mouser Part #
523-M85049/82-24ZP03

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

20In Stock

NT$2,704.52

NT$2,404.10

NT$2,349.61

NT$2,278.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-22ZP02
Amphenol PCD
1: NT$2,527.43
24In Stock

Mfr. Part #
M85049/85-22ZP02

Mouser Part #
523-M85049/85-22ZP02

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

24In Stock

NT$2,527.43

NT$2,191.87

NT$2,142.04

NT$2,037.71

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A10
Amphenol PCD
1: NT$2,161.40
20In Stock

Mfr. Part #
M85049/2125A10

Mouser Part #
523-85049/2125A10

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

20In Stock

NT$2,161.40

NT$1,874.24

NT$1,831.58

NT$1,743.39

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N05
Amphenol PCD
1: NT$1,502.83
26In Stock

Mfr. Part #
M85049/2125N05

Mouser Part #
523-85049/2125N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

26In Stock

NT$1,502.83

NT$1,426.11

NT$1,423.25

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N10A
Amphenol PCD
1: NT$1,795.73
25In Stock

Mfr. Part #
M85049/2125N10A

Mouser Part #
523-85049/2125N10A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

25In Stock

NT$1,795.73

NT$1,704.31

NT$1,700.72

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1821N04
Amphenol PCD
1: NT$2,577.26
15In Stock

Mfr. Part #
M85049/1821N04

Mouser Part #
523-85049/1821N04

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

15In Stock

NT$2,577.26

NT$2,199.04

NT$2,085.04

NT$1,985.37

NT$1,890.73

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

M85049/2119A05
Amphenol PCD
1: NT$1,724.39
24In Stock

Mfr. Part #
M85049/2119A05

Mouser Part #
523-85049/2119A05

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

Datasheet

24In Stock

NT$1,724.39

NT$1,499.25

NT$1,411.06

NT$1,407.83

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N05
Amphenol PCD
1: NT$1,585.29
22In Stock

Mfr. Part #
M85049/2119N05

Mouser Part #
523-85049/2119N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

22In Stock

NT$1,585.29

NT$1,418.23

NT$1,417.87

NT$1,388.47

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 10

M85049/10-137N
Amphenol PCD
1: NT$2,184.34
27In Stock

Mfr. Part #
M85049/10-137N

Mouser Part #
523-85049/10-137N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 10

Datasheet

27In Stock

NT$2,184.34

NT$2,075.00

NT$2,068.55

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-71N
Amphenol PCD
1: NT$5,239.48
11In Stock

Mfr. Part #
M85049/11-71N

Mouser Part #
523-85049/11-71N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

11In Stock

NT$5,239.48

NT$4,808.56

NT$4,659.42

NT$4,588.80

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-09N
Amphenol PCD
1: NT$2,179.68
23In Stock

Mfr. Part #
M85049/11-09N

Mouser Part #
523-85049/11-9N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

23In Stock

NT$2,179.68

NT$1,890.01

NT$1,857.75

NT$1,756.65

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

M85049/2113N03A
Amphenol PCD
1: NT$1,297.41
24In Stock

Mfr. Part #
M85049/2113N03A

Mouser Part #
523-85049/2113N03A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13

Datasheet

24In Stock

NT$1,297.41

NT$1,290.60

NT$1,284.86

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-23N
Amphenol PCD
1: NT$3,302.50
11In Stock

Mfr. Part #
M85049/25-23N

Mouser Part #
523-85049/25-23N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Datasheet

11In Stock

NT$3,302.50

NT$2,975.91

NT$2,923.93

NT$2,797.38

NT$2,664.01

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-20ZP03
Amphenol PCD
1: NT$2,411.99
23In Stock

Mfr. Part #
M85049/82-20ZP03

Mouser Part #
523-M85049/82-20ZP03

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

23In Stock

NT$2,411.99

NT$2,091.85

NT$2,044.17

NT$1,972.83

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-22ZP01
Amphenol PCD
1: NT$2,527.43
23In Stock

Mfr. Part #
M85049/85-22ZP01

Mouser Part #
523-M85049/85-22ZP01

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

23In Stock

NT$2,527.43

NT$2,191.87

NT$1,970.32

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

M85049/10-21N
Amphenol PCD
1: NT$2,943.64
17In Stock

Mfr. Part #
M85049/10-21N

Mouser Part #
523-85049/10-21N

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

Datasheet

17In Stock

NT$2,943.64

NT$2,591.60

NT$2,591.24

NT$2,484.05

View

Min.: 1
Mult.: 1

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

M85049/10-22N
Amphenol PCD
1: NT$2,982.72
11In Stock

Mfr. Part #
M85049/10-22N

Mouser Part #
523-85049/10-22N

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

Datasheet

11In Stock

NT$2,982.72

NT$2,651.47

NT$2,591.24

NT$2,467.56

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 9

M85049/1909W02
Amphenol PCD
1: NT$2,414.50
3In Stock
100Expected 8/31/2026

Mfr. Part #
M85049/1909W02

Mouser Part #
523-85049/1909W02

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 9

Datasheet

3In Stock

100Expected 8/31/2026

NT$2,414.50

NT$2,052.05

NT$1,921.92

NT$1,703.23

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-34W
Amphenol PCD
1: NT$2,823.90
26In Stock

Mfr. Part #
M85049/11-34W

Mouser Part #
523-85049/11-34W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

26In Stock

NT$2,823.90

NT$2,542.48

NT$2,433.14

NT$2,363.59

View

Min.: 1
Mult.: 1

No