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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 21

M85049/1821N06
Amphenol PCD
1: 60,11 €
12In Stock

Mfr. Part No.
M85049/1821N06

Mouser Part No
523-85049/1821N06

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

Datasheet

12In Stock

60,11 €

55,75 €

51,46 €

46,16 €

View

Min.: 1
Mult.: 1

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

M85049/1821N08
Amphenol PCD
1: 76,02 €
1In Stock
25Expected 3/4/2026

Mfr. Part No.
M85049/1821N08

Mouser Part No
523-85049/1821N08

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

Datasheet

1In Stock

25Expected 3/4/2026

76,02 €

68,98 €

62,02 €

55,18 €

View

Min.: 1
Mult.: 1

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

M85049/1823N03
Amphenol PCD
1: 60,27 €
10In Stock
50On Order

Mfr. Part No.
M85049/1823N03

Mouser Part No
523-85049/1823N03

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

Datasheet

10In Stock

50On Order

60,27 €

53,70 €

48,62 €

46,51 €

Min.: 1
Mult.: 1

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

M85049/1823N08
Amphenol PCD
1: 69,21 €
19In Stock

Mfr. Part No.
M85049/1823N08

Mouser Part No
523-85049/1823N08

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

Datasheet

19In Stock

69,21 €

63,66 €

57,78 €

54,67 €

View

Min.: 1
Mult.: 1

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

M85049/1825N07A
Amphenol PCD
1: 72,85 €
6In Stock

Mfr. Part No.
M85049/1825N07A

Mouser Part No
523-85049/1825N07A

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

Datasheet

6In Stock

72,85 €

68,14 €

60,42 €

57,55 €

View

Min.: 1
Mult.: 1

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

M85049/1825N09
Amphenol PCD
1: 74,30 €
10In Stock

Mfr. Part No.
M85049/1825N09

Mouser Part No
523-85049/1825N09

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

Datasheet

10In Stock

74,30 €

68,24 €

62,12 €

62,11 €

View

Min.: 1
Mult.: 1

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

M85049/1911N03
Amphenol PCD
1: 48,59 €
12In Stock
175On Order

Mfr. Part No.
M85049/1911N03

Mouser Part No
523-85049/1911N03

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

Datasheet

12In Stock

175On Order

48,59 €

42,13 €

40,51 €

39,16 €

View

Min.: 1
Mult.: 1

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

M85049/1913N03
Amphenol PCD
1: 49,69 €
31In Stock

Mfr. Part No.
M85049/1913N03

Mouser Part No
523-85049/1913N03

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

Datasheet

31In Stock

49,69 €

42,23 €

36,76 €

35,87 €

34,96 €

Min.: 1
Mult.: 1

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

M85049/1915N04
Amphenol PCD
1: 46,99 €
24In Stock

Mfr. Part No.
M85049/1915N04

Mouser Part No
523-85049/1915N04

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

Datasheet

24In Stock

46,99 €

44,44 €

38,08 €

38,07 €

37,31 €

Min.: 1
Mult.: 1

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

M85049/1917N03
Amphenol PCD
1: 52,49 €
25In Stock
25Expected 5/11/2026

Mfr. Part No.
M85049/1917N03

Mouser Part No
523-85049/1917N03

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

Datasheet

25In Stock

25Expected 5/11/2026

52,49 €

46,92 €

41,97 €

39,97 €

View

Min.: 1
Mult.: 1

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

M85049/1917N06
Amphenol PCD
1: 45,83 €
17In Stock
25Expected 3/9/2026

Mfr. Part No.
M85049/1917N06

Mouser Part No
523-85049/1917N06

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

Datasheet

17In Stock

25Expected 3/9/2026

45,83 €

41,03 €

Min.: 1
Mult.: 1

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

M85049/1917N06A
Amphenol PCD
1: 56,21 €
14In Stock

Mfr. Part No.
M85049/1917N06A

Mouser Part No
523-85049/1917N06A

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

Datasheet

14In Stock

56,21 €

53,48 €

50,24 €

View

Min.: 1
Mult.: 1

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

M85049/1919N03
Amphenol PCD
1: 37,78 €
15In Stock

Mfr. Part No.
M85049/1919N03

Mouser Part No
523-85049/1919N03

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

Datasheet

15In Stock

37,78 €

Min.: 1
Mult.: 1

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

M85049/1919N06
Amphenol PCD
1: 55,28 €
25In Stock

Mfr. Part No.
M85049/1919N06

Mouser Part No
523-85049/1919N06

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

Datasheet

25In Stock

55,28 €

51,22 €

43,65 €

42,37 €

40,11 €

Min.: 1
Mult.: 1

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

M85049/1921N04
Amphenol PCD
1: 52,22 €
16In Stock
25Expected 3/9/2026

Mfr. Part No.
M85049/1921N04

Mouser Part No
523-85049/1921N04

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

Datasheet

16In Stock

25Expected 3/9/2026

52,22 €

50,22 €

48,66 €

View

Min.: 1
Mult.: 1

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

M85049/1921N05
Amphenol PCD
1: 62,13 €
25In Stock

Mfr. Part No.
M85049/1921N05

Mouser Part No
523-85049/1921N05

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

Datasheet

25In Stock

62,13 €

57,07 €

52,93 €

51,11 €

View

Min.: 1
Mult.: 1

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

M85049/1921N06
Amphenol PCD
1: 55,06 €
10In Stock
25Expected 4/30/2026

Mfr. Part No.
M85049/1921N06

Mouser Part No
523-85049/1921N06

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

Datasheet

10In Stock

25Expected 4/30/2026

55,06 €

53,44 €

47,25 €

44,72 €

View

Min.: 1
Mult.: 1

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

M85049/1921N07
Amphenol PCD
1: 58,07 €
21In Stock

Mfr. Part No.
M85049/1921N07

Mouser Part No
523-85049/1921N07

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

Datasheet

21In Stock

58,07 €

49,36 €

46,27 €

44,06 €

42,37 €

Min.: 1
Mult.: 1

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

M85049/1923N03
Amphenol PCD
1: 55,82 €
17In Stock

Mfr. Part No.
M85049/1923N03

Mouser Part No
523-85049/1923N03

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

Datasheet

17In Stock

55,82 €

50,87 €

43,23 €

42,31 €

View

Min.: 1
Mult.: 1

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

M85049/1923N05
Amphenol PCD
1: 59,94 €
16In Stock

Mfr. Part No.
M85049/1923N05

Mouser Part No
523-85049/1923N05

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

Datasheet

16In Stock

59,94 €

54,72 €

46,78 €

46,08 €

View

Min.: 1
Mult.: 1

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

M85049/1923N06
Amphenol PCD
1: 61,58 €
12In Stock
50On Order

Mfr. Part No.
M85049/1923N06

Mouser Part No
523-85049/1923N06

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

Datasheet

12In Stock

50On Order

61,58 €

55,47 €

47,14 €

47,08 €

View

Min.: 1
Mult.: 1

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

M85049/1925N06
Amphenol PCD
1: 62,05 €
16In Stock

Mfr. Part No.
M85049/1925N06

Mouser Part No
523-85049/1925N06

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

Datasheet

16In Stock

62,05 €

59,39 €

58,14 €

View

Min.: 1
Mult.: 1

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

M85049/1925N09
Amphenol PCD
1: 65,52 €
17In Stock

Mfr. Part No.
M85049/1925N09

Mouser Part No
523-85049/1925N09

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

Datasheet

17In Stock

65,52 €

64,31 €

58,38 €

56,87 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 11

M85049/2111A02A
Amphenol PCD
1: 35,55 €
11In Stock

Mfr. Part No.
M85049/2111A02A

Mouser Part No
523-85049/2111A02A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 11

Datasheet

11In Stock

35,55 €

30,91 €

29,58 €

28,62 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

M85049/2111N02
Amphenol PCD
1: 35,89 €
3In Stock
40Expected 5/13/2026

Mfr. Part No.
M85049/2111N02

Mouser Part No
523-85049/2111N02

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11

Datasheet

3In Stock

40Expected 5/13/2026

35,89 €

32,60 €

28,30 €

27,92 €

26,38 €

Min.: 1
Mult.: 1