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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 Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

M85049/82-10ZP03
Amphenol PCD
1: 49,64 €
34In Stock

Mfr. Part No.
M85049/82-10ZP03

Mouser Part No
523-M85049/82-10ZP03

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

Datasheet

34In Stock

49,64 €

42,61 €

39,68 €

38,34 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-17ZP02
Amphenol PCD
1: 54,77 €
32In Stock

Mfr. Part No.
M85049/88-17ZP02

Mouser Part No
523-M85049/88-17ZP02

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

32In Stock

54,77 €

47,02 €

43,47 €

42,12 €

40,12 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-12ZP02
Amphenol PCD
1: 55,00 €
15In Stock

Mfr. Part No.
M85049/85-12ZP02

Mouser Part No
523-M85049/85-12ZP02

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

15In Stock

55,00 €

38,35 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/85-10ZP02
Amphenol PCD
1: 52,94 €
6In Stock

Mfr. Part No.
M85049/85-10ZP02

Mouser Part No
523-M85049/85-10ZP02

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Datasheet

6In Stock

52,94 €

46,56 €

37,04 €

36,93 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-19ZP02
Amphenol PCD
1: 63,73 €
16In Stock

Mfr. Part No.
M85049/88-19ZP02

Mouser Part No
523-M85049/88-19ZP02

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

16In Stock

63,73 €

43,89 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-16ZP02
Amphenol PCD
1: 59,31 €
13In Stock
25Expected 6/4/2026

Mfr. Part No.
M85049/85-16ZP02

Mouser Part No
523-M85049/85-16ZP02

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

13In Stock

25Expected 6/4/2026

59,31 €

41,10 €

40,82 €

40,59 €

Quote

Min.: 1
Mult.: 1

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

M85049/85-20ZP02
Amphenol PCD
1: 63,98 €
8In Stock

Mfr. Part No.
M85049/85-20ZP02

Mouser Part No
523-M85049/85-20ZP02

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

Datasheet

8In Stock

63,98 €

55,39 €

44,05 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

M85049/82-12ZP03
Amphenol PCD
1: 57,53 €
9In Stock

Mfr. Part No.
M85049/82-12ZP03

Mouser Part No
523-M85049/82-12ZP03

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

Datasheet

9In Stock

57,53 €

50,09 €

39,97 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/85-08ZP02
Amphenol PCD
1: 50,98 €
8In Stock
25Expected 7/28/2026

Mfr. Part No.
M85049/85-08ZP02

Mouser Part No
523-M85049/85-08ZP02

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Datasheet

8In Stock

25Expected 7/28/2026

50,98 €

44,82 €

35,78 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-16ZP01
Amphenol PCD
1: 59,31 €
15In Stock

Mfr. Part No.
M85049/85-16ZP01

Mouser Part No
523-M85049/85-16ZP01

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

15In Stock

59,31 €

41,10 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-25ZP02
Amphenol PCD
1: 75,81 €
3In Stock
50On Order

Mfr. Part No.
M85049/88-25ZP02

Mouser Part No
523-M85049/88-25ZP02

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

3In Stock

50On Order

75,81 €

65,70 €

51,44 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-16ZP02
Amphenol PCD
1: 61,58 €
13In Stock

Mfr. Part No.
M85049/82-16ZP02

Mouser Part No
523-M85049/82-16ZP02

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

13In Stock

61,58 €

42,54 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-24ZP02
Amphenol PCD
1: 74,66 €
8In Stock

Mfr. Part No.
M85049/85-24ZP02

Mouser Part No
523-M85049/85-24ZP02

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

8In Stock

74,66 €

74,09 €

50,71 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-21ZP02
Amphenol PCD
1: 65,95 €
7In Stock
25Expected 8/11/2026

Mfr. Part No.
M85049/88-21ZP02

Mouser Part No
523-M85049/88-21ZP02

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

7In Stock

25Expected 8/11/2026

65,95 €

57,11 €

45,30 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-18ZP02
Amphenol PCD
1: 63,73 €
15In Stock

Mfr. Part No.
M85049/82-18ZP02

Mouser Part No
523-M85049/82-18ZP02

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

15In Stock

63,73 €

43,89 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-18ZP03
Amphenol PCD
1: 62,84 €
32In Stock

Mfr. Part No.
M85049/82-18ZP03

Mouser Part No
523-M85049/82-18ZP03

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

32In Stock

62,84 €

62,74 €

44,57 €

43,89 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-18ZP02
Amphenol PCD
1: 60,79 €
39In Stock

Mfr. Part No.
M85049/85-18ZP02

Mouser Part No
523-M85049/85-18ZP02

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

39In Stock

60,79 €

60,62 €

43,32 €

42,58 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-23ZP03
Amphenol PCD
1: 69,61 €
16In Stock

Mfr. Part No.
M85049/88-23ZP03

Mouser Part No
523-M85049/88-23ZP03

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

16In Stock

69,61 €

69,40 €

48,30 €

Min.: 1
Mult.: 1

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

M85049/1923N07
Amphenol PCD
1: 56,15 €
43In Stock

Mfr. Part No.
M85049/1923N07

Mouser Part No
523-85049/1923N07

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

Datasheet

43In Stock

56,15 €

53,18 €

49,94 €

49,52 €

Min.: 1
Mult.: 1

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

M85049/79-19N03
Amphenol PCD
1: 76,50 €
23In Stock

Mfr. Part No.
M85049/79-19N03

Mouser Part No
523-85049/79-19N03

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

Datasheet

23In Stock

76,50 €

72,38 €

72,37 €

72,01 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

M85049/82-20N03
Amphenol PCD
1: 45,68 €
50In Stock

Mfr. Part No.
M85049/82-20N03

Mouser Part No
523-85049/82-20N03

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

Datasheet

50In Stock

45,68 €

34,06 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

M85049/89-15N02
Amphenol PCD
1: 54,23 €
35In Stock

Mfr. Part No.
M85049/89-15N02

Mouser Part No
523-85049/89-15N02

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

Datasheet

35In Stock

54,23 €

49,85 €

44,75 €

44,03 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-28ZP02
Amphenol PCD
1: 79,82 €
23In Stock

Mfr. Part No.
M85049/82-28ZP02

Mouser Part No
523-M85049/82-28ZP02

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

23In Stock

79,82 €

79,61 €

54,59 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/87-08ZP03
Amphenol PCD
1: 82,53 €
25In Stock

Mfr. Part No.
M85049/87-08ZP03

Mouser Part No
523-M85049/87-08ZP03

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

25In Stock

82,53 €

60,35 €

55,59 €

Min.: 1
Mult.: 1

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

M85049/79-23N09
Amphenol PCD
1: 95,25 €
59In Stock

Mfr. Part No.
M85049/79-23N09

Mouser Part No
523-85049/79-23N09

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

Datasheet

59In Stock

95,25 €

78,78 €

Quote

Min.: 1
Mult.: 1