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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 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 1

M85049/85-24ZP01
Amphenol PCD
1: 74,64 €
15In Stock

Mfr. Part No.
M85049/85-24ZP01

Mouser Part No
523-M85049/85-24ZP01

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

15In Stock

74,64 €

50,71 €

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 €
9In Stock
25Expected 7/15/2026

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

9In Stock

25Expected 7/15/2026

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 12 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-12ZP02
Amphenol PCD
1: 55,00 €
17In 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

17In Stock

55,00 €

38,35 €

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 5/28/2026

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 5/28/2026

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 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 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 24 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-24ZP02
Amphenol PCD
1: 74,64 €
18In 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

18In Stock

74,64 €

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 7/21/2026

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 7/21/2026

65,95 €

57,11 €

45,30 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Backshell;Env-EMI/RFI;BZN

M85049/1825Z10
Amphenol PCD
1: 81,42 €
224In Stock

Mfr. Part No.
M85049/1825Z10

Mouser Part No
523-M850491825Z10

Circular MIL Spec Backshells Backshell;Env-EMI/RFI;BZN

Datasheet

224In Stock

81,42 €

79,08 €

75,61 €

74,75 €

72,96 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9

M85049/78-09N02
Amphenol PCD
1: 58,15 €
28In Stock

Mfr. Part No.
M85049/78-09N02

Mouser Part No
523-85049/78-09N02

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9

Datasheet

28In Stock

58,15 €

55,89 €

47,92 €

47,09 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-24N03
Amphenol PCD
1: 78,75 €
20In Stock

Mfr. Part No.
M85049/84-24N03

Mouser Part No
523-85049/84-24N03

Circular MIL Spec Backshells 84 Backshell Band Lock

Datasheet

20In Stock

78,75 €

75,64 €

75,63 €

65,99 €

View

Min.: 1
Mult.: 1

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

M85049/1825N05
Amphenol PCD
1: 69,69 €
96In Stock

Mfr. Part No.
M85049/1825N05

Mouser Part No
523-85049/1825N05

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

Datasheet

96In Stock

69,69 €

60,07 €

57,30 €

54,30 €

View

Min.: 1
Mult.: 1

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

M85049/1825N06
Amphenol PCD
1: 61,70 €
44In Stock

Mfr. Part No.
M85049/1825N06

Mouser Part No
523-85049/1825N06

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

Datasheet

44In Stock

61,70 €

59,73 €

59,72 €

56,27 €

View

Min.: 1
Mult.: 1

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

M85049/79-23N09
Amphenol PCD
1: 88,33 €
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

88,33 €

76,06 €

76,05 €

Quote

Min.: 1
Mult.: 1

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

M85049/1825N10
Amphenol PCD
1: 75,47 €
24In Stock

Mfr. Part No.
M85049/1825N10

Mouser Part No
523-85049/1825N10

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

Datasheet

24In Stock

75,47 €

69,49 €

59,68 €

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 13

M85049/79-13N04
Amphenol PCD
1: 63,39 €
45In Stock

Mfr. Part No.
M85049/79-13N04

Mouser Part No
523-85049/79-13N04

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 13

Datasheet

45In Stock

63,39 €

58,21 €

54,83 €

50,58 €

Min.: 1
Mult.: 1

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

M85049/8-8W
Amphenol PCD
1: 50,10 €
48In Stock

Mfr. Part No.
M85049/8-8W

Mouser Part No
523-85049/8-8W

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

Datasheet

48In Stock

50,10 €

45,67 €

37,08 €

36,90 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 24

M85049/82-24N03
Amphenol PCD
1: 48,01 €
64In Stock

Mfr. Part No.
M85049/82-24N03

Mouser Part No
523-85049/82-24N03

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 24

Datasheet

64In Stock

48,01 €

43,80 €

40,94 €

40,93 €

Quote

Min.: 1
Mult.: 1

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

M85049/1823N04
Amphenol PCD
1: 68,90 €
31In Stock

Mfr. Part No.
M85049/1823N04

Mouser Part No
523-85049/1823N04

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

Datasheet

31In Stock

68,90 €

64,76 €

54,72 €

51,30 €

Quote

Min.: 1
Mult.: 1