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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 12

M85049/10-13N
Amphenol PCD
1: 65,64 €
2In Stock
50Expected 11/11/2026

Mfr. Part No.
M85049/10-13N

Mouser Part No
523-85049/10-13N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

Datasheet

2In Stock

50Expected 11/11/2026

65,64 €

57,41 €

57,40 €

55,71 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

M85049/10-21N
Amphenol PCD
1: 70,61 €
17In Stock

Mfr. Part No.
M85049/10-21N

Mouser Part No
523-85049/10-21N

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

Datasheet

17In Stock

70,61 €

62,17 €

62,16 €

59,59 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18

M85049/10-27N
Amphenol PCD
1: 74,49 €
17In Stock

Mfr. Part No.
M85049/10-27N

Mouser Part No
523-85049/10-27N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18

Datasheet

17In Stock

74,49 €

66,22 €

64,72 €

64,42 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 22

M85049/10-45N
Amphenol PCD
1: 122,39 €
17In Stock

Mfr. Part No.
M85049/10-45N

Mouser Part No
523-85049/10-45N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 22

Datasheet

17In Stock

122,39 €

112,32 €

109,78 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 24

M85049/10-51N
Amphenol PCD
1: 89,14 €
5In Stock
25Expected 10/22/2026

Mfr. Part No.
M85049/10-51N

Mouser Part No
523-85049/10-51N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 24

Datasheet

5In Stock

25Expected 10/22/2026

89,14 €

81,29 €

79,46 €

73,38 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 28

M85049/10-57N
Amphenol PCD
1: 104,38 €
5In Stock

Mfr. Part No.
M85049/10-57N

Mouser Part No
523-85049/10-57N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 28

Datasheet

5In Stock

104,38 €

102,83 €

94,97 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 36

M85049/10-71N
Amphenol PCD
1: 143,16 €
1In Stock

Mfr. Part No.
M85049/10-71N

Mouser Part No
523-85049/10-71N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 36

Datasheet

1In Stock

143,16 €

123,61 €

114,80 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-11N
Amphenol PCD
1: 68,92 €
2In Stock

Mfr. Part No.
M85049/11-11N

Mouser Part No
523-85049/11-11N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

2In Stock

68,92 €

66,53 €

66,48 €

65,14 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-124N
Amphenol PCD
1: 62,36 €
16In Stock

Mfr. Part No.
M85049/11-124N

Mouser Part No
523-85049/11-124N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

16In Stock

62,36 €

55,44 €

54,18 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-17N
Amphenol PCD
1: 58,01 €
6In Stock

Mfr. Part No.
M85049/11-17N

Mouser Part No
523-85049/11-17N

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

6In Stock

58,01 €

49,31 €

46,22 €

44,01 €

41,92 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-22N
Amphenol PCD
1: 59,00 €
21In Stock

Mfr. Part No.
M85049/11-22N

Mouser Part No
523-85049/11-22N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

21In Stock

59,00 €

51,17 €

46,10 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-33N
Amphenol PCD
1: 57,20 €
15In Stock

Mfr. Part No.
M85049/11-33N

Mouser Part No
523-85049/11-33N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

15In Stock

57,20 €

53,14 €

51,60 €

48,35 €

45,73 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-41N
Amphenol PCD
1: 67,72 €
12In Stock

Mfr. Part No.
M85049/11-41N

Mouser Part No
523-85049/11-41N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

12In Stock

67,72 €

60,19 €

58,82 €

54,33 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 11

M85049/14S11N
Amphenol PCD
1: 16,91 €
28In Stock

Mfr. Part No.
M85049/14S11N

Mouser Part No
523-85049/14S11N

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 11

Datasheet

28In Stock

16,91 €

14,38 €

14,37 €

13,09 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 13

M85049/14S13N
Amphenol PCD
1: 14,04 €
6In Stock
25Expected 10/8/2026

Mfr. Part No.
M85049/14S13N

Mouser Part No
523-85049/14S13N

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 13

Datasheet

6In Stock

25Expected 10/8/2026

14,04 €

13,13 €

13,12 €

12,98 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 15

M85049/14S15N
Amphenol PCD
1: 26,13 €
30In Stock

Mfr. Part No.
M85049/14S15N

Mouser Part No
523-85049/14S15N

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 15

Datasheet

30In Stock

26,13 €

19,59 €

16,72 €

15,83 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 21

M85049/14S21N
Amphenol PCD
1: 19,43 €
11In Stock

Mfr. Part No.
M85049/14S21N

Mouser Part No
523-85049/14S21N

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 21

Datasheet

11In Stock

19,43 €

16,51 €

15,70 €

14,96 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1710N03
Amphenol PCD
1: 53,37 €
5In Stock
25Expected 9/18/2026

Mfr. Part No.
M85049/1710N03

Mouser Part No
523-85049/1710N03

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

Datasheet

5In Stock

25Expected 9/18/2026

53,37 €

45,78 €

45,73 €

44,59 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

M85049/1712N02
Amphenol PCD
1: 53,18 €
14In Stock

Mfr. Part No.
M85049/1712N02

Mouser Part No
523-85049/1712N02

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 12

Datasheet

14In Stock

53,18 €

45,69 €

43,24 €

41,18 €

39,22 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

M85049/1716N04
Amphenol PCD
1: 59,96 €
3In Stock

Mfr. Part No.
M85049/1716N04

Mouser Part No
523-85049/1716N04

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

Datasheet

3In Stock

59,96 €

52,00 €

46,79 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

M85049/1716N05
Amphenol PCD
1: 61,74 €
21In Stock

Mfr. Part No.
M85049/1716N05

Mouser Part No
523-85049/1716N05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

Datasheet

21In Stock

61,74 €

53,54 €

52,32 €

52,00 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

M85049/1716N06
Amphenol PCD
1: 62,04 €
20In Stock

Mfr. Part No.
M85049/1716N06

Mouser Part No
523-85049/1716N06

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 16

Datasheet

20In Stock

62,04 €

55,15 €

49,38 €

47,39 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 11

M85049/1811N01
Amphenol PCD
1: 50,91 €
6In Stock
25Expected 11/2/2026

Mfr. Part No.
M85049/1811N01

Mouser Part No
523-85049/1811N01

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 11

Datasheet

6In Stock

25Expected 11/2/2026

50,91 €

43,15 €

40,57 €

40,37 €

Quote

Min.: 1
Mult.: 1

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

M85049/1813N04
Amphenol PCD
1: 58,48 €
29In Stock
375On Order

Mfr. Part No.
M85049/1813N04

Mouser Part No
523-85049/1813N04

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

Datasheet

29In Stock

375On Order

58,48 €

49,71 €

46,59 €

43,49 €

View

Min.: 1
Mult.: 1

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

M85049/1817N02
Amphenol PCD
1: 56,50 €
25In Stock

Mfr. Part No.
M85049/1817N02

Mouser Part No
523-85049/1817N02

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

Datasheet

25In Stock

56,50 €

49,00 €

47,88 €

47,58 €

View

Min.: 1
Mult.: 1