Connectors – Mouser Canada

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Backshells

Amphenol PCD Backshells offer strain relief, environmental protection, and 360° EMI/RFI shielding at the termination area of virtually any circular connector. These connectors feature a base material constructed of aluminum alloy, stainless steel, brass, or composite and a variety of finishes such as black zinc nickel, cadmium, electroless nickel, anodized black, passivated, and more. Amphenol PCD Backshells have custom designs available and meet or exceed RoHS/REACH compliance standards. Available in both military specifications and commercial types for any application, these backshells meet the Society of Automotive Engineers (SAE) AS85049 standard.

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RoHS Compliant

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Part #

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

M85049/79-15N05
Amphenol PCD
1: $149.28
12In Stock
25Expected 2026-03-23

Mfr. Part #
M85049/79-15N05

Mouser Part #
523-85049/79-15N05

Amphenol PCD

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

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Datasheet

12In Stock

25Expected 2026-03-23

$149.28

$136.45

$120.45

$100.13

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Min.: 1
Mult.: 1

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

M85049/79-17N03
Amphenol PCD
1: $143.32
10In Stock

Mfr. Part #
M85049/79-17N03

Mouser Part #
523-85049/79-17N03

Amphenol PCD

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

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Datasheet

10In Stock

$143.32

$133.41

$108.92

$97.84

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

M85049/79-17N04
Amphenol PCD
1: $120.85
8In Stock
25Expected 2026-04-23

Mfr. Part #
M85049/79-17N04

Mouser Part #
523-85049/79-17N04

Amphenol PCD

Circular MIL Spec Backshells 79 Backshell Env-EMI/RFI

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Datasheet

8In Stock

25Expected 2026-04-23

$120.85

$114.53

$96.31

$90.44

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 19

M85049/79-19N07
Amphenol PCD
1: $135.08
1In Stock
25Expected 2026-05-11

Mfr. Part #
M85049/79-19N07

Mouser Part #
523-85049/79-19N07

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI R/A NIC SZ 19

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Datasheet

1In Stock

25Expected 2026-05-11

$135.08

$125.16

$125.15

$123.54

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Min.: 1
Mult.: 1

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

M85049/79-21N07
Amphenol PCD
1: $139.56
16In Stock

Mfr. Part #
M85049/79-21N07

Mouser Part #
523-85049/79-21N07

Amphenol PCD

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

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Datasheet

16In Stock

$139.56

$118.93

$109.28

$105.56

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Min.: 1
Mult.: 1

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

M85049/8-17N
Amphenol PCD
1: $98.44
18In Stock

Mfr. Part #
M85049/8-17N

Mouser Part #
523-85049/8-17N

Amphenol PCD

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

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Datasheet

18In Stock

$98.44

$89.08

$76.69

$70.78

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Min.: 1
Mult.: 1

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

M85049/8-40N
Amphenol PCD
1: $87.13
11In Stock

Mfr. Part #
M85049/8-40N

Mouser Part #
523-85049/8-40N

Amphenol PCD

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

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Datasheet

11In Stock

$87.13

$80.22

$68.69

$66.34

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Min.: 1
Mult.: 1

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

M85049/8-6N
Amphenol PCD
1: $82.77
6In Stock

Mfr. Part #
M85049/8-6N

Mouser Part #
523-85049/8-6N

Amphenol PCD

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

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Datasheet

6In Stock

$82.77

$70.69

$67.97

$65.70

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

M85049/8-7W
Amphenol PCD
1: $101.66
8In Stock

Mfr. Part #
M85049/8-7W

Mouser Part #
523-85049/8-7W

Amphenol PCD

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

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Datasheet

8In Stock

$101.66

$90.90

$81.45

$75.78

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Min.: 1
Mult.: 1

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

M85049/8-8W
Amphenol PCD
1: $86.02
23In Stock
25Expected 2026-04-15

Mfr. Part #
M85049/8-8W

Mouser Part #
523-85049/8-8W

Amphenol PCD

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

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Datasheet

23In Stock

25Expected 2026-04-15

$86.02

$76.29

$64.82

$62.11

$60.19

Min.: 1
Mult.: 1

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

M85049/82-16N02
Amphenol PCD
1: $68.55
4In Stock

Mfr. Part #
M85049/82-16N02

Mouser Part #
523-85049/82-16N02

Amphenol PCD

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

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Datasheet

4In Stock

$68.55

$62.09

$56.78

$56.58

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

M85049/82-18N03
Amphenol PCD
1: $76.93
12In Stock

Mfr. Part #
M85049/82-18N03

Mouser Part #
523-85049/82-18N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

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Datasheet

12In Stock

$76.93

$65.70

$60.89

$58.21

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 22

M85049/82-22N02
Amphenol PCD
1: $87.82
20In Stock

Mfr. Part #
M85049/82-22N02

Mouser Part #
523-85049/82-22N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 22

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Datasheet

20In Stock

$87.82

$79.07

$74.36

$69.97

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 82 Backshell Band Lock

M85049/82-22N03
Amphenol PCD
1: $103.00
7In Stock
25Expected 2026-03-09

Mfr. Part #
M85049/82-22N03

Mouser Part #
523-85049/82-22N03

Amphenol PCD

Circular MIL Spec Backshells 82 Backshell Band Lock

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Datasheet

7In Stock

25Expected 2026-03-09

$103.00

$94.36

$76.18

$63.73

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

M85049/82-28N02
Amphenol PCD
1: $96.20
4In Stock

Mfr. Part #
M85049/82-28N02

Mouser Part #
523-85049/82-28N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

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Datasheet

4In Stock

$96.20

$83.43

$75.75

$71.45

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

M85049/82-28N03
Amphenol PCD
1: $96.20
2In Stock
25Expected 2026-04-23

Mfr. Part #
M85049/82-28N03

Mouser Part #
523-85049/82-28N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 28

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Datasheet

2In Stock

25Expected 2026-04-23

$96.20

$88.08

$79.39

$71.58

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12

M85049/84-12N03
Amphenol PCD
1: $106.16
7In Stock
50Expected 2026-05-15

Mfr. Part #
M85049/84-12N03

Mouser Part #
523-85049/84-12N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12

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Datasheet

7In Stock

50Expected 2026-05-15

$106.16

$90.24

$83.44

$80.56

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Min.: 1
Mult.: 1

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

M85049/84-14N03
Amphenol PCD
1: $113.02
21In Stock

Mfr. Part #
M85049/84-14N03

Mouser Part #
523-85049/84-14N03

Amphenol PCD

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

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Datasheet

21In Stock

$113.02

$103.67

$89.49

$87.69

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-18N03
Amphenol PCD
1: $117.92
21In Stock

Mfr. Part #
M85049/84-18N03

Mouser Part #
523-85049/84-18N03

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

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Datasheet

21In Stock

$117.92

$104.83

$93.36

$90.73

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-20N02
Amphenol PCD
1: $113.01
8In Stock

Mfr. Part #
M85049/84-20N02

Mouser Part #
523-85049/84-20N02

Amphenol PCD

Circular MIL Spec Backshells 84 Backshell Band Lock

Learn More

Datasheet

8In Stock

$113.01

$104.18

$98.06

$96.51

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 10

M85049/85-10N02
Amphenol PCD
1: $80.13
15In Stock
50Expected 2026-05-06

Mfr. Part #
M85049/85-10N02

Mouser Part #
523-85049/85-10N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 10

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Datasheet

15In Stock

50Expected 2026-05-06

$80.13

$67.88

$63.83

$53.66

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Min.: 1
Mult.: 1

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

M85049/85-12N01
Amphenol PCD
1: $67.74
21In Stock

Mfr. Part #
M85049/85-12N01

Mouser Part #
523-85049/85-12N01

Amphenol PCD

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

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Datasheet

21In Stock

$67.74

$58.90

$53.23

$53.20

View

Min.: 1
Mult.: 1

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

M85049/85-12N02
Amphenol PCD
1: $67.74
21In Stock

Mfr. Part #
M85049/85-12N02

Mouser Part #
523-85049/85-12N02

Amphenol PCD

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

Learn More

Datasheet

21In Stock

$67.74

$64.59

$64.58

$64.16

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 85 Backshell Band Lock

M85049/85-16N02
Amphenol PCD
1: $85.07
39In Stock

Mfr. Part #
M85049/85-16N02

Mouser Part #
523-85049/85-16N02

Amphenol PCD

Circular MIL Spec Backshells 85 Backshell Band Lock

Learn More

Datasheet

39In Stock

$85.07

$58.35

$54.32

$50.58

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

M85049/85-18N02
Amphenol PCD
1: $83.80
6In Stock
25Expected 2026-05-11

Mfr. Part #
M85049/85-18N02

Mouser Part #
523-85049/85-18N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

Learn More

Datasheet

6In Stock

25Expected 2026-05-11

$83.80

$74.54

$67.54

$61.09

View

Min.: 1
Mult.: 1

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