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 Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 12

M85049/47S12N
Amphenol PCD
1: $25.78
24In Stock

Mfr. Part No.
M85049/47S12N

Mouser Part No
523-85049/47S12N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 12

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Datasheet

24In Stock

$25.78

$23.21

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

M85049/47S12W
Amphenol PCD
1: $29.32
33In Stock

Mfr. Part No.
M85049/47S12W

Mouser Part No
523-85049/47S12W

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

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Datasheet

33In Stock

$29.32

$26.19

$22.25

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

M85049/47S14W
Amphenol PCD
1: $30.14
24In Stock

Mfr. Part No.
M85049/47S14W

Mouser Part No
523-85049/47S14W

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

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Datasheet

24In Stock

$30.14

$25.62

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 16

M85049/47S16N
Amphenol PCD
1: $28.32
23In Stock

Mfr. Part No.
M85049/47S16N

Mouser Part No
523-85049/47S16N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 16

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Datasheet

23In Stock

$28.32

$25.49

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NICKEL SIZE 14

M85049/47-14N
Amphenol PCD
1: $19.31
16In Stock
25On Order

Mfr. Part No.
M85049/47-14N

Mouser Part No
523-85049/47-14N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NICKEL SIZE 14

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Datasheet

16In Stock

25On Order

$19.31

$17.13

$13.95

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 14

M85049/47S14N
Amphenol PCD
1: $26.52
25In Stock
25Expected 23/02/2026

Mfr. Part No.
M85049/47S14N

Mouser Part No
523-85049/47S14N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NICKEL SZ 14

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Datasheet

25In Stock

25Expected 23/02/2026

$26.52

$24.86

$21.40

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

M85049/47S20W
Amphenol PCD
1: $32.74
19In Stock

Mfr. Part No.
M85049/47S20W

Mouser Part No
523-85049/47S20W

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

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Datasheet

19In Stock

$32.74

$27.83

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NICKEL SIZE 08

M85049/47-8N
Amphenol PCD
1: $18.46
19In Stock

Mfr. Part No.
M85049/47-8N

Mouser Part No
523-85049/47-8N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NICKEL SIZE 08

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Datasheet

19In Stock

$18.46

$16.00

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 25

M85049/14S25W
Amphenol PCD
1: $18.32
37In Stock

Mfr. Part No.
M85049/14S25W

Mouser Part No
523-85049/14S25W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 25

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Datasheet

37In Stock

$18.32

$14.82

$14.08

Min.: 1
Mult.: 1

E Nuts

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-13W
Amphenol PCD
1: $32.14
20In Stock

Mfr. Part No.
M85049/7-13W

Mouser Part No
523-85049/7-13W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

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Datasheet

20In Stock

$32.14

$29.53

Quote

Min.: 1
Mult.: 1

Environmental Backshells

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

45 Deg

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

M85049/47-18N
Amphenol PCD
1: $13.51
56In Stock

Mfr. Part No.
M85049/47-18N

Mouser Part No
523-85049/47-18N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

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Datasheet

56In Stock

$13.51

$11.82

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD

M85049/8-45W
Amphenol PCD
1: $62.03
19In Stock

Mfr. Part No.
M85049/8-45W

Mouser Part No
523-85049/8-45W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A OD CAD

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Datasheet

19In Stock

$62.03

$59.33

$53.74

$47.80

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

Right Angle

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

M85049/23-49Z
Amphenol PCD
1: $73.44
60In Stock

Mfr. Part No.
M85049/23-49Z

Mouser Part No
523-M8504923-49Z

Amphenol PCD

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

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Datasheet

60In Stock

$73.44

$65.29

$62.77

$60.68

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-26482 II

90 Deg

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

M85049/1823W09A
Amphenol PCD
1: $67.41
13In Stock

Mfr. Part No.
M85049/1823W09A

Mouser Part No
523-85049/1823W09A

Amphenol PCD

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

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Datasheet

13In Stock

$67.41

$56.98

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 9 Backshell Env

M85049/9-40W
Amphenol PCD
1: $29.26
11In Stock

Mfr. Part No.
M85049/9-40W

Mouser Part No
523-85049/9-40W

Amphenol PCD

Circular MIL Spec Backshells 9 Backshell Env

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Datasheet

11In Stock

$29.26

$24.14

$22.45

Min.: 1
Mult.: 1

Environmental Backshells

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

Right Angle

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 20

M85049/1720W05
Amphenol PCD
1: $78.60
19In Stock

Mfr. Part No.
M85049/1720W05

Mouser Part No
523-85049/1720W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 20

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Datasheet

19In Stock

$78.60

$69.87

$62.12

$56.91

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

Straight

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A OD CAD SZ 20

M85049/51-1-20W
Amphenol PCD
1: $12.24
63In Stock

Mfr. Part No.
M85049/51-1-20W

Mouser Part No
523-85049/51-1-20W

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A OD CAD SZ 20

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Datasheet

63In Stock

$12.24

$11.33

$10.66

Min.: 1
Mult.: 1

Strain Reliefs

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

Right Angle

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

M85049/1811Z03A
Amphenol PCD
1: $74.42
24In Stock

Mfr. Part No.
M85049/1811Z03A

Mouser Part No
523-M850491811Z03A

Amphenol PCD

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

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Datasheet

24In Stock

$74.42

$66.15

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/10-43W
Amphenol PCD
1: $71.76
22In Stock

Mfr. Part No.
M85049/10-43W

Mouser Part No
523-85049/10-43W

Amphenol PCD

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

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Datasheet

22In Stock

$71.76

$63.56

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-18W
Amphenol PCD
1: $51.15
23In Stock

Mfr. Part No.
M85049/11-18W

Mouser Part No
523-85049/11-18W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

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Datasheet

23In Stock

$51.15

$46.92

Quote

Min.: 1
Mult.: 1

Environmental Backshells

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

Straight

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

M85049/2115W05
Amphenol PCD
1: $41.49
36In Stock

Mfr. Part No.
M85049/2115W05

Mouser Part No
523-85049/2115W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 15

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Datasheet

36In Stock

$41.49

$39.69

$39.12

$32.01

Min.: 1
Mult.: 1

Non-Environmental Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

M85049/47S16W
Amphenol PCD
1: $29.79
45In Stock

Mfr. Part No.
M85049/47S16W

Mouser Part No
523-85049/47S16W

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 47 Backshell Strain Relief Clamp

Learn More

Datasheet

45In Stock

$29.79

$25.32

$24.01

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 10

M85049/1710W03
Amphenol PCD
1: $44.90
18In Stock

Mfr. Part No.
M85049/1710W03

Mouser Part No
523-85049/1710W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 10

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Datasheet

18In Stock

$44.90

$41.59

$41.41

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

Straight

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

M85049/6-13W
Amphenol PCD
1: $47.98
16In Stock

Mfr. Part No.
M85049/6-13W

Mouser Part No
523-85049/6-13W

Amphenol PCD

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

Learn More

Datasheet

16In Stock

$47.98

$39.12

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

45 Deg

Circular MIL Spec Backshells 6 Backshell Env-EMI/RFI

M85049/6-5W
Amphenol PCD
1: $47.12
21In Stock

Mfr. Part No.
M85049/6-5W

Mouser Part No
523-85049/6-5W

Amphenol PCD

Circular MIL Spec Backshells 6 Backshell Env-EMI/RFI

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Datasheet

21In Stock

$47.12

$45.07

$44.90

$44.42

$36.32

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

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

45 Deg

Backshell Clamps

Types of Circular MIL Spec Connectors

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