Circular MIL Spec Connectors

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Backshell Clamps

Amphenol PCD Backshell Clamps help to tidy up the cable after termination and provide strain relief at the termination area. The clamps are offered in environmental and non-environmental options, as well as EMI/RFI. The components are available in black zinc nickel, adding to the existing finishes in olive drab gray cadmium, tin, or nickel with a variety of shell sizes 11 through 48. Amphenol PCD Backshell Clamps meet MIL-DTL-38999, MIL-DTL-26482 Series II, MIL-DTL-83723 Series I and II, MIL-DTL-24308, and MIL-DTL-83513.

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Types of Circular MIL Spec Connectors

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Part #

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 25

M85049/88-25W03
Amphenol PCD
1: 46,56 €
1.092In Stock
175On Order

Mfr. Part No.
M85049/88-25W03

Mouser Part No
523-85049/88-25W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 25

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Datasheet

1.092In Stock

175On Order

46,56 €

42,45 €

37,30 €

35,69 €

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Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-9W03
Amphenol PCD
1: 34,98 €
1.723In Stock
3.950On Order

Mfr. Part No.
M85049/88-9W03

Mouser Part No
523-85049/88-9W03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

1.723In Stock

3.950On Order

34,98 €

33,01 €

32,15 €

28,83 €

28,70 €

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

M85049/90-11W03
Amphenol PCD
1: 54,58 €
608In Stock
500Expected 10/21/2026

Mfr. Part No.
M85049/90-11W03

Mouser Part No
523-85049/90-11W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

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Datasheet

608In Stock

500Expected 10/21/2026

54,58 €

46,93 €

44,00 €

41,90 €

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Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 13

M85049/90-13W03
Amphenol PCD
1: 53,64 €
362In Stock

Mfr. Part No.
M85049/90-13W03

Mouser Part No
523-85049/90-13W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 13

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Datasheet

362In Stock

53,64 €

50,02 €

48,03 €

46,57 €

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Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

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

M85049/1825Z10
Amphenol PCD
1: 88,17 €
222In Stock

Mfr. Part No.
M85049/1825Z10

Mouser Part No
523-M850491825Z10

Amphenol PCD

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

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Datasheet

222In Stock

88,17 €

82,43 €

82,05 €

79,18 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL

M85049/88-11Z03
Amphenol PCD
1: 41,51 €
1.334In Stock
2.250Expected 12/24/2026

Mfr. Part No.
M85049/88-11Z03

Mouser Part No
523-M8504988-11Z03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL

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Datasheet

1.334In Stock

2.250Expected 12/24/2026

41,51 €

37,93 €

37,03 €

36,47 €

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Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/10-14N
Amphenol PCD
1: 66,07 €
34In Stock

Mfr. Part No.
M85049/10-14N

Mouser Part No
523-85049/10-14N

Amphenol PCD

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

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Datasheet

34In Stock

66,07 €

58,73 €

52,31 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-5015, MIL-DTL-26482 II

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Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14

M85049/10-17N
Amphenol PCD
1: 76,87 €
47In Stock
125On Order

Mfr. Part No.
M85049/10-17N

Mouser Part No
523-85049/10-17N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14

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Datasheet

47In Stock

125On Order

76,87 €

71,87 €

61,18 €

59,70 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-5015, MIL-DTL-26482 II

Straight

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-18N
Amphenol PCD
1: 56,67 €
37In Stock

Mfr. Part No.
M85049/11-18N

Mouser Part No
523-85049/11-18N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

37In Stock

56,67 €

49,15 €

47,25 €

44,44 €

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Min.: 1
Mult.: 1

Environmental Backshells

MIL-DTL-5015, MIL-DTL-26482 II

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1811N03
Amphenol PCD
1: 43,96 €
150In Stock
175Expected 10/6/2026

Mfr. Part No.
M85049/1811N03

Mouser Part No
523-85049/1811N03

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

150In Stock

175Expected 10/6/2026

43,96 €

39,78 €

34,30 €

33,29 €

32,06 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1813N02
Amphenol PCD
1: 52,35 €
59In Stock

Mfr. Part No.
M85049/1813N02

Mouser Part No
523-85049/1813N02

Amphenol PCD

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

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Datasheet

59In Stock

52,35 €

47,90 €

47,27 €

46,67 €

39,22 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1813N03
Amphenol PCD
1: 55,80 €
54In Stock
375On Order

Mfr. Part No.
M85049/1813N03

Mouser Part No
523-85049/1813N03

Amphenol PCD

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

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Datasheet

54In Stock

375On Order

55,80 €

47,43 €

44,46 €

42,35 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1815N03
Amphenol PCD
1: 54,46 €
134In Stock

Mfr. Part No.
M85049/1815N03

Mouser Part No
523-85049/1815N03

Amphenol PCD

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

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Datasheet

134In Stock

54,46 €

48,79 €

45,86 €

43,68 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1815N04
Amphenol PCD
1: 58,76 €
140In Stock

Mfr. Part No.
M85049/1815N04

Mouser Part No
523-85049/1815N04

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

140In Stock

58,76 €

51,29 €

48,08 €

46,65 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1815N05
Amphenol PCD
1: 58,85 €
246In Stock

Mfr. Part No.
M85049/1815N05

Mouser Part No
523-85049/1815N05

Amphenol PCD

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

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Datasheet

246In Stock

58,85 €

51,66 €

41,25 €

40,83 €

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1817N04
Amphenol PCD
1: 55,10 €
226In Stock
150Expected 10/6/2026

Mfr. Part No.
M85049/1817N04

Mouser Part No
523-85049/1817N04

Amphenol PCD

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

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Datasheet

226In Stock

150Expected 10/6/2026

55,10 €

49,64 €

47,27 €

45,02 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1817N05
Amphenol PCD
1: 62,73 €
29In Stock
25Expected 8/31/2026

Mfr. Part No.
M85049/1817N05

Mouser Part No
523-85049/1817N05

Amphenol PCD

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

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Datasheet

29In Stock

25Expected 8/31/2026

62,73 €

53,33 €

52,80 €

47,60 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1819N07
Amphenol PCD
1: 64,21 €
48In Stock

Mfr. Part No.
M85049/1819N07

Mouser Part No
523-85049/1819N07

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

48In Stock

64,21 €

54,58 €

51,16 €

48,72 €

46,40 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1821N05
Amphenol PCD
1: 63,92 €
49In Stock

Mfr. Part No.
M85049/1821N05

Mouser Part No
523-85049/1821N05

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

49In Stock

63,92 €

54,33 €

50,93 €

48,50 €

46,19 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1821N08
Amphenol PCD
1: 66,38 €
27In Stock
75On Order

Mfr. Part No.
M85049/1821N08

Mouser Part No
523-85049/1821N08

Amphenol PCD

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

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Datasheet

27In Stock

75On Order

66,38 €

57,39 €

53,78 €

51,22 €

48,78 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1823N09
Amphenol PCD
1: 74,82 €
55In Stock

Mfr. Part No.
M85049/1823N09

Mouser Part No
523-85049/1823N09

Amphenol PCD

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

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Datasheet

55In Stock

74,82 €

63,61 €

61,07 €

59,03 €

53,00 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N04
Amphenol PCD
1: 70,15 €
38In Stock

Mfr. Part No.
M85049/1825N04

Mouser Part No
523-85049/1825N04

Amphenol PCD

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

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Datasheet

38In Stock

70,15 €

59,63 €

55,90 €

53,24 €

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N05
Amphenol PCD
1: 70,58 €
57In Stock

Mfr. Part No.
M85049/1825N05

Mouser Part No
523-85049/1825N05

Amphenol PCD

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

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Datasheet

57In Stock

70,58 €

64,05 €

61,37 €

56,03 €

51,64 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N06
Amphenol PCD
1: 75,75 €
27In Stock

Mfr. Part No.
M85049/1825N06

Mouser Part No
523-85049/1825N06

Amphenol PCD

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

Learn More

Datasheet

27In Stock

75,75 €

75,71 €

70,95 €

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N08
Amphenol PCD
1: 73,72 €
77In Stock
75Expected 10/6/2026

Mfr. Part No.
M85049/1825N08

Mouser Part No
523-85049/1825N08

Amphenol PCD

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

Learn More

Datasheet

77In Stock

75Expected 10/6/2026

73,72 €

65,81 €

65,80 €

65,33 €

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Backshell Clamps

Types of Circular MIL Spec Connectors

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