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 36

M85049/10-71N
Amphenol PCD
1: $255.53
8In Stock

Mfr. Part #
M85049/10-71N

Mouser Part #
523-85049/10-71N

Amphenol PCD

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

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Datasheet

8In Stock

$255.53

$220.63

$204.91

$204.51

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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 NON ENV EMI/RFI 45 DEG NIC

M85049/23-18N
Amphenol PCD
1: $58.16
22In Stock

Mfr. Part #
M85049/23-18N

Mouser Part #
523-85049/23-18N

Amphenol PCD

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

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Datasheet

22In Stock

$58.16

$58.07

$47.05

Quote

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

45 Deg

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-43W
Amphenol PCD
1: $50.62
15In Stock

Mfr. Part #
M85049/7-43W

Mouser Part #
523-85049/7-43W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

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Datasheet

15In Stock

$50.62

$45.60

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Min.: 1
Mult.: 1

Environmental Backshells

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

45 Deg

Circular MIL Spec Backshells 23 Backshell Non Env-EMI/RFI

M85049/23-4W
Amphenol PCD
1: $58.35
27In Stock

Mfr. Part #
M85049/23-4W

Mouser Part #
523-85049/23-4W

Amphenol PCD

Circular MIL Spec Backshells 23 Backshell Non Env-EMI/RFI

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Datasheet

27In Stock

$58.35

$55.81

$55.01

$44.91

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

45 Deg

Circular MIL Spec Backshells

M85049/1712Z04
Amphenol PCD
1: $114.82
14In Stock

Mfr. Part #
M85049/1712Z04

Mouser Part #
523-M850491712Z04

Amphenol PCD

Circular MIL Spec Backshells

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Datasheet

14In Stock

$114.82

$102.06

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

Straight

Circular MIL Spec Backshells BACKSHELL

M85049/1923Z09
Amphenol PCD
1: $136.46
15In Stock

Mfr. Part #
M85049/1923Z09

Mouser Part #
523-M850491923Z09

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL

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Datasheet

15In Stock

$136.46

$124.44

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Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

M85049/77-16W03
Amphenol PCD
1: $95.95
17In Stock

Mfr. Part #
M85049/77-16W03

Mouser Part #
523-85049/77-16W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL EMI/RFI 45 DEG OD CAD SZ 09

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Datasheet

17In Stock

$95.95

$95.85

$81.03

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

45 Deg

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

M85049/9-75W
Amphenol PCD
1: $57.65
23In Stock

Mfr. Part #
M85049/9-75W

Mouser Part #
523-85049/9-75W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

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Datasheet

23In Stock

$57.65

$55.14

$54.35

$44.19

Min.: 1
Mult.: 1

Environmental Backshells

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

Right Angle

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1811N02
Amphenol PCD
1: $90.49
379In Stock

Mfr. Part #
M85049/1811N02

Mouser Part #
523-85049/1811N02

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

379In Stock

$90.49

$81.91

$75.84

$70.75

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 25 STRAIN RELIEF NIC

M85049/38S25N
Amphenol PCD
1: $36.64
1,404In Stock

Mfr. Part #
M85049/38S25N

Mouser Part #
523-85049/38S25N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 25 STRAIN RELIEF NIC

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Datasheet

1,404In Stock

$36.64

$31.88

$29.87

$27.29

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-9N03
Amphenol PCD
1: $49.84
817In Stock
1,425On Order

Mfr. Part #
M85049/88-9N03

Mouser Part #
523-85049/88-9N03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

817In Stock

1,425On Order

$49.84

$45.93

$43.81

$42.43

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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: $60.94
959In Stock
1,000Expected 2026-04-06

Mfr. Part #
M85049/88-9W03

Mouser Part #
523-85049/88-9W03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

959In Stock

1,000Expected 2026-04-06

$60.94

$55.75

$53.92

$52.33

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Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

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

M85049/10-13N
Amphenol PCD
1: $125.33
40In Stock

Mfr. Part #
M85049/10-13N

Mouser Part #
523-85049/10-13N

Amphenol PCD

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

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Datasheet

40In Stock

$125.33

$115.32

$97.17

$91.49

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

Straight

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

M85049/10-17N
Amphenol PCD
1: $108.91
85In Stock

Mfr. Part #
M85049/10-17N

Mouser Part #
523-85049/10-17N

Amphenol PCD

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

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Datasheet

85In Stock

$108.91

$107.05

$107.04

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-11N
Amphenol PCD
1: $133.15
21In Stock

Mfr. Part #
M85049/11-11N

Mouser Part #
523-85049/11-11N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

21In Stock

$133.15

$130.84

$130.83

$123.54

View

Min.: 1
Mult.: 1

Environmental Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-71N
Amphenol PCD
1: $224.34
13In Stock

Mfr. Part #
M85049/11-71N

Mouser Part #
523-85049/11-71N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Learn More

Datasheet

13In Stock

$224.34

$205.89

$173.07

$171.83

View

Min.: 1
Mult.: 1

Environmental Backshells

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

Straight

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL QCK CLAMP R/A SL NIC SZ 25

M85049/16S25N
Amphenol PCD
1: $44.64
70In Stock

Mfr. Part #
M85049/16S25N

Mouser Part #
523-85049/16S25N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL QCK CLAMP R/A SL NIC SZ 25

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Datasheet

70In Stock

$44.64

$37.95

$36.23

$35.06

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Min.: 1
Mult.: 1

Cable Clamps

MIL-DTL-38999 III, IV

Right Angle

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1811N03
Amphenol PCD
1: $74.83
324In Stock

Mfr. Part #
M85049/1811N03

Mouser Part #
523-85049/1811N03

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

324In Stock

$74.83

$66.17

$62.58

$60.40

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 13

M85049/1813N03
Amphenol PCD
1: $91.59
246In Stock

Mfr. Part #
M85049/1813N03

Mouser Part #
523-85049/1813N03

Amphenol PCD

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

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Datasheet

246In Stock

$91.59

$83.80

$78.70

$69.50

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 13

M85049/1813N04
Amphenol PCD
1: $82.09
53In Stock
100Expected 2026-05-11

Mfr. Part #
M85049/1813N04

Mouser Part #
523-85049/1813N04

Amphenol PCD

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

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Datasheet

53In Stock

100Expected 2026-05-11

$82.09

$80.68

$75.40

View

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: $104.12
61In Stock

Mfr. Part #
M85049/1815N04

Mouser Part #
523-85049/1815N04

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Learn More

Datasheet

61In Stock

$104.12

$86.02

$83.15

$83.10

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 15

M85049/1815N05
Amphenol PCD
1: $101.62
87In Stock
100Expected 2026-06-01

Mfr. Part #
M85049/1815N05

Mouser Part #
523-85049/1815N05

Amphenol PCD

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

Learn More

Datasheet

87In Stock

100Expected 2026-06-01

$101.62

$93.04

$80.19

$79.24

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 17

M85049/1817N04
Amphenol PCD
1: $120.59
176In Stock

Mfr. Part #
M85049/1817N04

Mouser Part #
523-85049/1817N04

Amphenol PCD

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

Learn More

Datasheet

176In Stock

$120.59

$108.65

$96.04

$88.25

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 17

M85049/1817N05
Amphenol PCD
1: $107.28
44In Stock

Mfr. Part #
M85049/1817N05

Mouser Part #
523-85049/1817N05

Amphenol PCD

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

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Datasheet

44In Stock

$107.28

$98.76

$93.01

$83.26

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1819N05
Amphenol PCD
1: $107.16
37In Stock
50Expected 2026-03-05

Mfr. Part #
M85049/1819N05

Mouser Part #
523-85049/1819N05

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Learn More

Datasheet

37In Stock

50Expected 2026-03-05

$107.16

$97.50

$95.80

$89.87

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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