Circular MIL Spec Connectors

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Black-Zinc Nickel-Finish Backshell Clamps

Amphenol PCD Black-Zinc Nickel-Finish Backshell Clamps are RoHS-compliant replacements for cadmium plating. These clamps offer a cost-effective cable holding option over cadmium and provide environmental protection. The series is available in a variety of shell sizes (11 through 48), both military (MIL) specification and commercial types, and with EMI/RFI shielding. The clamps clean up the cable after termination and provide good strain relief at the termination area. Amphenol PCD Black-Zinc Nickel-Finish Backshell Clamps are suitable for aeronautical and military applications.

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Types of Circular MIL Spec Connectors

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Part #

Circular MIL Spec Backshells Strain Relief Clamp

M85049/121S14Z
Amphenol PCD
1: $87.42
17In Stock

Mfr. Part #
M85049/121S14Z

Mouser Part #
523-M85049/121S14Z

Amphenol PCD

Circular MIL Spec Backshells Strain Relief Clamp

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Datasheet

17In Stock

$87.42

$75.83

$64.81

$59.94

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Straight

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/123-24Z
Amphenol PCD
1: $84.46
21In Stock

Mfr. Part #
M85049/123-24Z

Mouser Part #
523-M85049/123-24Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

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Datasheet

21In Stock

$84.46

$72.13

$62.06

$57.04

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 I, II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/120S22Z
Amphenol PCD
1: $111.01
23In Stock

Mfr. Part #
M85049/120S22Z

Mouser Part #
523-M85049/120S22Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

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Datasheet

23In Stock

$111.01

$98.69

$80.33

$76.89

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-26482 II

Right Angle

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/118S24Z
Amphenol PCD
1: $108.89
21In Stock

Mfr. Part #
M85049/118S24Z

Mouser Part #
523-M85049/118S24Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

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Datasheet

21In Stock

$108.89

$95.75

$77.95

$74.60

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-26482 II

Straight

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/147S17Z
Amphenol PCD
1: $71.21
22In Stock

Mfr. Part #
M85049/147S17Z

Mouser Part #
523-M85049/147S17Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

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Datasheet

22In Stock

$71.21

$61.92

View

Min.: 1
Mult.: 1

Strain Reliefs

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

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

Straight

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/147S09Z
Amphenol PCD
1: $61.91
28In Stock

Mfr. Part #
M85049/147S09Z

Mouser Part #
523-M85049/147S09Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

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Datasheet

28In Stock

$61.91

$53.83

$44.61

View

Min.: 1
Mult.: 1

Strain Reliefs

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

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/147S23Z
Amphenol PCD
1: $80.46
22In Stock

Mfr. Part #
M85049/147S23Z

Mouser Part #
523-M85049/147S23Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

Learn More

Datasheet

22In Stock

$80.46

$68.72

View

Min.: 1
Mult.: 1

Strain Reliefs

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/124-13Z
Amphenol PCD
1: $58.47
79In Stock
100Expected 2026-05-18

Mfr. Part #
M85049/124-13Z

Mouser Part #
523-M85049/124-13Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

Learn More

Datasheet

79In Stock

100Expected 2026-05-18

$58.47

$53.53

$45.48

$44.52

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters 124 Backshell Strain Relief Clamp

M85049/124-15Z
Amphenol PCD
1: $58.30
132In Stock

Mfr. Part #
M85049/124-15Z

Mouser Part #
523-M85049/124-15Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 124 Backshell Strain Relief Clamp

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Datasheet

132In Stock

$58.30

$51.82

$46.62

$46.14

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

M85049/124-21Z
Amphenol PCD
1: $59.42
79In Stock

Mfr. Part #
M85049/124-21Z

Mouser Part #
523-M85049/124-21Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Strain Relief Clamp

Learn More

Datasheet

79In Stock

$59.42

$58.88

$58.87

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters BACKSHELLS

M85049/88-21Z03
Amphenol PCD
1: $83.27
151In Stock

Mfr. Part #
M85049/88-21Z03

Mouser Part #
523-M8504988-21Z03

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELLS

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Datasheet

151In Stock

$83.27

$70.78

$68.71

$68.02

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters Backshell;Shrink Boot;BZN

M85049/69-15Z
Amphenol PCD
1: $31.62
158In Stock
375On Order

Mfr. Part #
M85049/69-15Z

Mouser Part #
523-M85049/69-15Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Backshell;Shrink Boot;BZN

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Datasheet

158In Stock

375On Order

$31.62

$26.88

$25.19

$23.99

View

Min.: 1
Mult.: 1

Circular MIL Spec Strain Reliefs & Adapters Backshell;Shrink Boot;BZN

M85049/69-25Z
Amphenol PCD
1: $40.89
78In Stock
85Expected 2026-03-05

Mfr. Part #
M85049/69-25Z

Mouser Part #
523-M85049/69-25Z

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Backshell;Shrink Boot;BZN

Learn More

Datasheet

78In Stock

85Expected 2026-03-05

$40.89

$34.75

$33.03

$31.97

View

Min.: 1
Mult.: 1

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

M85049/1815Z03
Amphenol PCD
1: $115.43
55In Stock

Mfr. Part #
M85049/1815Z03

Mouser Part #
523-M850491815Z03

Amphenol PCD

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

Learn More

Datasheet

55In Stock

$115.43

$102.61

$98.65

$95.37

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1817Z04
Amphenol PCD
1: $121.69
41In Stock

Mfr. Part #
M85049/1817Z04

Mouser Part #
523-M850491817Z04

Amphenol PCD

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

Learn More

Datasheet

41In Stock

$121.69

$114.13

$100.74

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

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

M85049/1825Z09
Amphenol PCD
1: $154.33
19In Stock

Mfr. Part #
M85049/1825Z09

Mouser Part #
523-M850491825Z09

Amphenol PCD

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

Learn More

Datasheet

19In Stock

$154.33

$145.40

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Circular MIL Spec Strain Reliefs & Adapters 85 Backshell Band Lock

M85049/85-14Z02
Amphenol PCD
1: $82.92
63In Stock

Mfr. Part #
M85049/85-14Z02

Mouser Part #
523-M8504985-14Z02

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 85 Backshell Band Lock

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Datasheet

63In Stock

$82.92

$70.49

$66.05

$62.89

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 I, II

Straight

Circular MIL Spec Backshells BACKSHELL

M85049/88-11Z03
Amphenol PCD
1: $67.06
285In Stock
1,150On Order

Mfr. Part #
M85049/88-11Z03

Mouser Part #
523-M8504988-11Z03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL

Learn More

Datasheet

285In Stock

1,150On Order

$67.06

$58.13

$54.80

$53.00

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

M85049/88-13Z02
Amphenol PCD
1: $85.16
38In Stock

Mfr. Part #
M85049/88-13Z02

Mouser Part #
523-M8504988-13Z02

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

Learn More

Datasheet

38In Stock

$85.16

$77.43

$67.08

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL

M85049/88-19Z02
Amphenol PCD
1: $94.43
37In Stock

Mfr. Part #
M85049/88-19Z02

Mouser Part #
523-M8504988-19Z02

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters BACKSHELL

Learn More

Datasheet

37In Stock

$94.43

$86.56

$78.73

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

M85049/88-23Z02
Amphenol PCD
1: $99.35
30In Stock

Mfr. Part #
M85049/88-23Z02

Mouser Part #
523-M8504988-23Z02

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

Learn More

Datasheet

30In Stock

$99.35

$92.02

$79.84

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

M85049/89-13Z03
Amphenol PCD
1: $111.58
25In Stock

Mfr. Part #
M85049/89-13Z03

Mouser Part #
523-M8504989-13Z03

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters Backshell;Band lock;BZN

Learn More

Datasheet

25In Stock

$111.58

$103.84

$91.03

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

45 Deg

Circular MIL Spec Strain Reliefs & Adapters 90 Backshell Band Lock

M85049/90-15Z03
Amphenol PCD
1: $126.33
26In Stock
50Expected 2026-03-05

Mfr. Part #
M85049/90-15Z03

Mouser Part #
523-M8504990-15Z03

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 90 Backshell Band Lock

Learn More

Datasheet

26In Stock

50Expected 2026-03-05

$126.33

$111.13

$104.17

$99.21

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Right Angle

Black-Zinc Nickel-Finish Backshell Clamps

Types of Circular MIL Spec Connectors

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