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 ENV EMI/ RFI ST NIC SZ 25

M85049/1825N08B
Amphenol PCD
1: 74,74 €
21In Stock

Mfr. Part No.
M85049/1825N08B

Mouser Part No
523-85049/1825N08B

Amphenol PCD

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

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Datasheet

21In Stock

74,74 €

68,16 €

66,62 €

61,63 €

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1825N09
Amphenol PCD
1: 76,39 €
21In Stock

Mfr. Part No.
M85049/1825N09

Mouser Part No
523-85049/1825N09

Amphenol PCD

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

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Datasheet

21In Stock

76,39 €

65,31 €

61,21 €

58,29 €

55,53 €

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1911N02
Amphenol PCD
1: 49,05 €
51In Stock

Mfr. Part No.
M85049/1911N02

Mouser Part No
523-85049/1911N02

Amphenol PCD

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

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Datasheet

51In Stock

49,05 €

41,70 €

38,98 €

37,21 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1911N03
Amphenol PCD
1: 50,40 €
69In Stock
200On Order

Mfr. Part No.
M85049/1911N03

Mouser Part No
523-85049/1911N03

Amphenol PCD

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

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Datasheet

69In Stock

200On Order

50,40 €

42,85 €

40,16 €

38,25 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1913N03
Amphenol PCD
1: 43,65 €
48In Stock
150On Order

Mfr. Part No.
M85049/1913N03

Mouser Part No
523-85049/1913N03

Amphenol PCD

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

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Datasheet

48In Stock

150On Order

43,65 €

36,54 €

36,53 €

34,96 €

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1913N04
Amphenol PCD
1: 50,53 €
120In Stock
75Expected 10/6/2026

Mfr. Part No.
M85049/1913N04

Mouser Part No
523-85049/1913N04

Amphenol PCD

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

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Datasheet

120In Stock

75Expected 10/6/2026

50,53 €

43,11 €

40,40 €

38,48 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1915N03
Amphenol PCD
1: 50,64 €
186In Stock

Mfr. Part No.
M85049/1915N03

Mouser Part No
523-85049/1915N03

Amphenol PCD

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

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Datasheet

186In Stock

50,64 €

43,92 €

43,78 €

39,34 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1915N04
Amphenol PCD
1: 53,76 €
35In Stock

Mfr. Part No.
M85049/1915N04

Mouser Part No
523-85049/1915N04

Amphenol PCD

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

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Datasheet

35In Stock

53,76 €

45,69 €

42,83 €

40,79 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1917N05
Amphenol PCD
1: 52,49 €
213In Stock

Mfr. Part No.
M85049/1917N05

Mouser Part No
523-85049/1917N05

Amphenol PCD

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

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Datasheet

213In Stock

52,49 €

46,45 €

44,24 €

42,13 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1919N07
Amphenol PCD
1: 57,16 €
111In Stock
225Expected 11/25/2026

Mfr. Part No.
M85049/1919N07

Mouser Part No
523-85049/1919N07

Amphenol PCD

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

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Datasheet

111In Stock

225Expected 11/25/2026

57,16 €

50,14 €

50,13 €

49,42 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1921N05
Amphenol PCD
1: 58,26 €
33In Stock

Mfr. Part No.
M85049/1921N05

Mouser Part No
523-85049/1921N05

Amphenol PCD

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

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Datasheet

33In Stock

58,26 €

56,33 €

54,18 €

44,20 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1921N06
Amphenol PCD
1: 58,06 €
83In Stock

Mfr. Part No.
M85049/1921N06

Mouser Part No
523-85049/1921N06

Amphenol PCD

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

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Datasheet

83In Stock

58,06 €

50,35 €

50,21 €

43,39 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1921N08
Amphenol PCD
1: 73,60 €
64In Stock

Mfr. Part No.
M85049/1921N08

Mouser Part No
523-85049/1921N08

Amphenol PCD

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

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Datasheet

64In Stock

73,60 €

52,25 €

45,00 €

44,68 €

Quote

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1923N06
Amphenol PCD
1: 62,44 €
122In Stock

Mfr. Part No.
M85049/1923N06

Mouser Part No
523-85049/1923N06

Amphenol PCD

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

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Datasheet

122In Stock

62,44 €

54,15 €

52,92 €

50,31 €

Quote

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1925N04
Amphenol PCD
1: 61,77 €
102In Stock

Mfr. Part No.
M85049/1925N04

Mouser Part No
523-85049/1925N04

Amphenol PCD

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

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Datasheet

102In Stock

61,77 €

54,91 €

54,74 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1925N06
Amphenol PCD
1: 64,24 €
37In Stock

Mfr. Part No.
M85049/1925N06

Mouser Part No
523-85049/1925N06

Amphenol PCD

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

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Datasheet

37In Stock

64,24 €

57,11 €

56,94 €

54,76 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1925N07A
Amphenol PCD
1: 66,85 €
27In Stock

Mfr. Part No.
M85049/1925N07A

Mouser Part No
523-85049/1925N07A

Amphenol PCD

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

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Datasheet

27In Stock

66,85 €

58,14 €

52,86 €

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1925N08
Amphenol PCD
1: 66,85 €
25In Stock
25Expected 10/22/2026

Mfr. Part No.
M85049/1925N08

Mouser Part No
523-85049/1925N08

Amphenol PCD

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

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Datasheet

25In Stock

25Expected 10/22/2026

66,85 €

59,42 €

57,12 €

54,29 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1925N10
Amphenol PCD
1: 76,34 €
128In Stock
175Expected 10/8/2026

Mfr. Part No.
M85049/1925N10

Mouser Part No
523-85049/1925N10

Amphenol PCD

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

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Datasheet

128In Stock

175Expected 10/8/2026

76,34 €

72,27 €

68,70 €

67,43 €

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N04
Amphenol PCD
1: 40,24 €
51In Stock

Mfr. Part No.
M85049/2117N04

Mouser Part No
523-85049/2117N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

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Datasheet

51In Stock

40,24 €

34,98 €

33,59 €

30,63 €

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Min.: 1
Mult.: 1

Non-Environmental Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06
Amphenol PCD
1: 39,94 €
59In Stock

Mfr. Part No.
M85049/2117N06

Mouser Part No
523-85049/2117N06

Amphenol PCD

Circular MIL Spec Backshells 21 Backshell Non Env

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Datasheet

59In Stock

39,94 €

37,94 €

35,63 €

33,23 €

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Min.: 1
Mult.: 1

Non-Environmental Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-116N
Amphenol PCD
1: 57,52 €
54In Stock

Mfr. Part No.
M85049/25-116N

Mouser Part No
523-85049/25-116N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Learn More

Datasheet

54In Stock

57,52 €

49,88 €

49,73 €

46,24 €

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-130N
Amphenol PCD
1: 65,74 €
29In Stock

Mfr. Part No.
M85049/25-130N

Mouser Part No
523-85049/25-130N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Learn More

Datasheet

29In Stock

65,74 €

65,13 €

65,12 €

64,94 €

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-17N
Amphenol PCD
1: 57,85 €
30In Stock

Mfr. Part No.
M85049/25-17N

Mouser Part No
523-85049/25-17N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Learn More

Datasheet

30In Stock

57,85 €

50,98 €

47,95 €

44,62 €

42,48 €

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-19N
Amphenol PCD
1: 74,60 €
26In Stock

Mfr. Part No.
M85049/25-19N

Mouser Part No
523-85049/25-19N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Learn More

Datasheet

26In Stock

74,60 €

68,84 €

64,71 €

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

Straight

Backshell Clamps

Types of Circular MIL Spec Connectors

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