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 R/A NIC SZ 13

M85049/79-13N04
Amphenol PCD
1: $67.54
45In Stock

Mfr. Part No.
M85049/79-13N04

Mouser Part No
523-85049/79-13N04

Amphenol PCD

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

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Datasheet

45In Stock

$67.54

$63.27

$59.35

$55.18

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

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

M85049/79-15N03
Amphenol PCD
1: $79.47
32In Stock

Mfr. Part No.
M85049/79-15N03

Mouser Part No
523-85049/79-15N03

Amphenol PCD

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

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Datasheet

32In Stock

$79.47

$73.05

$73.04

$71.08

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

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

M85049/79-17N06
Amphenol PCD
1: $88.55
46In Stock

Mfr. Part No.
M85049/79-17N06

Mouser Part No
523-85049/79-17N06

Amphenol PCD

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

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Datasheet

46In Stock

$88.55

$88.05

$75.84

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

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

M85049/79-21N06
Amphenol PCD
1: $89.34
31In Stock

Mfr. Part No.
M85049/79-21N06

Mouser Part No
523-85049/79-21N06

Amphenol PCD

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

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Datasheet

31In Stock

$89.34

$76.11

$71.33

$67.93

$64.70

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

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

M85049/79-23N09
Amphenol PCD
1: $117.61
60In Stock

Mfr. Part No.
M85049/79-23N09

Mouser Part No
523-85049/79-23N09

Amphenol PCD

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

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Datasheet

60In Stock

$117.61

$108.11

$90.29

$86.42

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

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

M85049/79-25N07
Amphenol PCD
1: $118.45
46In Stock

Mfr. Part No.
M85049/79-25N07

Mouser Part No
523-85049/79-25N07

Amphenol PCD

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

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Datasheet

46In Stock

$118.45

$108.94

$94.88

$85.97

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

90 Deg

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 12

M85049/82-12N03
Amphenol PCD
1: $34.23
102In Stock

Mfr. Part No.
M85049/82-12N03

Mouser Part No
523-85049/82-12N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 12

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Datasheet

102In Stock

$34.23

$33.55

$33.15

$32.92

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Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 14

M85049/82-14N03
Amphenol PCD
1: $59.85
53In Stock
50Expected 29/05/2026

Mfr. Part No.
M85049/82-14N03

Mouser Part No
523-85049/82-14N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 14

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Datasheet

53In Stock

50Expected 29/05/2026

$59.85

$55.70

$47.70

$40.55

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Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 16

M85049/82-16N03
Amphenol PCD
1: $54.03
290In Stock

Mfr. Part No.
M85049/82-16N03

Mouser Part No
523-85049/82-16N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 16

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Datasheet

290In Stock

$54.03

$49.22

$41.83

$39.21

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Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

M85049/82-20N03
Amphenol PCD
1: $47.84
54In Stock

Mfr. Part No.
M85049/82-20N03

Mouser Part No
523-85049/82-20N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

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Datasheet

54In Stock

$47.84

$41.19

$40.24

$39.48

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Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL

M85049/82-08N03
Amphenol PCD
1: $39.67
57In Stock

Mfr. Part No.
M85049/82-08N03

Mouser Part No
523-85049/82-8N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL

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Datasheet

57In Stock

$39.67

$38.09

$36.57

$35.39

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14

M85049/84-14N02
Amphenol PCD
1: $71.45
25In Stock

Mfr. Part No.
M85049/84-14N02

Mouser Part No
523-85049/84-14N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14

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Datasheet

25In Stock

$71.45

$66.55

$59.66

$55.52

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Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-18N02
Amphenol PCD
1: $88.34
46In Stock

Mfr. Part No.
M85049/84-18N02

Mouser Part No
523-85049/84-18N02

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

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Datasheet

46In Stock

$88.34

$70.09

$70.08

$67.40

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-24N03
Amphenol PCD
1: $89.95
21In Stock

Mfr. Part No.
M85049/84-24N03

Mouser Part No
523-85049/84-24N03

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

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Datasheet

21In Stock

$89.95

$83.66

$76.38

$72.80

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 11

M85049/88-11N03
Amphenol PCD
1: $35.57
415In Stock
525Expected 15/04/2026

Mfr. Part No.
M85049/88-11N03

Mouser Part No
523-85049/88-11N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 11

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Datasheet

415In Stock

525Expected 15/04/2026

$35.57

$32.83

$29.97

$28.96

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 15

M85049/88-15N02
Amphenol PCD
1: $40.52
46In Stock
45Expected 16/03/2026

Mfr. Part No.
M85049/88-15N02

Mouser Part No
523-85049/88-15N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 15

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Datasheet

46In Stock

45Expected 16/03/2026

$40.52

$36.79

$35.65

$34.48

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-15N03
Amphenol PCD
1: $37.06
199In Stock
275On Order

Mfr. Part No.
M85049/88-15N03

Mouser Part No
523-85049/88-15N03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

199In Stock

275On Order

$37.06

$34.26

$32.95

$32.32

$30.29

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 17

M85049/88-17N02
Amphenol PCD
1: $40.88
81In Stock

Mfr. Part No.
M85049/88-17N02

Mouser Part No
523-85049/88-17N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 17

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Datasheet

81In Stock

$40.88

$34.75

$32.57

$32.56

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-17N03
Amphenol PCD
1: $36.96
393In Stock
500Expected 18/05/2026

Mfr. Part No.
M85049/88-17N03

Mouser Part No
523-85049/88-17N03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

393In Stock

500Expected 18/05/2026

$36.96

$34.73

$34.60

$33.17

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Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-19N03
Amphenol PCD
1: $42.32
106In Stock
100Expected 25/03/2026

Mfr. Part No.
M85049/88-19N03

Mouser Part No
523-85049/88-19N03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

106In Stock

100Expected 25/03/2026

$42.32

$38.05

$34.92

$34.14

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-21N02
Amphenol PCD
1: $57.58
65In Stock

Mfr. Part No.
M85049/88-21N02

Mouser Part No
523-85049/88-21N02

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

Learn More

Datasheet

65In Stock

$57.58

$51.99

$46.35

$40.93

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 23

M85049/88-23N03
Amphenol PCD
1: $44.45
105In Stock

Mfr. Part No.
M85049/88-23N03

Mouser Part No
523-85049/88-23N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 23

Learn More

Datasheet

105In Stock

$44.45

$39.12

$36.94

$35.18

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

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

M85049/88-25N02
Amphenol PCD
1: $76.23
58In Stock
100Expected 29/05/2026

Mfr. Part No.
M85049/88-25N02

Mouser Part No
523-85049/88-25N02

Amphenol PCD

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

Learn More

Datasheet

58In Stock

100Expected 29/05/2026

$76.23

$70.90

$52.14

$50.58

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 13

M85049/89-13N03
Amphenol PCD
1: $52.61
33In Stock

Mfr. Part No.
M85049/89-13N03

Mouser Part No
523-85049/89-13N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 13

Learn More

Datasheet

33In Stock

$52.61

$48.56

$46.29

$44.46

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

M85049/89-15N02
Amphenol PCD
1: $72.14
35In Stock

Mfr. Part No.
M85049/89-15N02

Mouser Part No
523-85049/89-15N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

Learn More

Datasheet

35In Stock

$72.14

$64.72

$57.77

$51.43

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Backshell Clamps

Types of Circular MIL Spec Connectors

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