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RoHS

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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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Part #

Circular MIL Spec Backshells 7 Backshell Env

M85049/7-57W
Amphenol PCD
1: $58.67
19Expected 28/10/2026

Mfr. Part No.
M85049/7-57W

Mouser Part No
523-85049/7-57W

Circular MIL Spec Backshells 7 Backshell Env

Datasheet

19Expected 28/10/2026

$58.67

$58.48

$58.47

$55.34

View

Min.: 1
Mult.: 1

No

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

M85049/8-15W
Amphenol PCD
1: $77.34
20Expected 18/9/2026

Mfr. Part No.
M85049/8-15W

Mouser Part No
523-85049/8-15W

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

Datasheet

20Expected 18/9/2026

$77.34

$75.83

$75.51

$74.28

View

Min.: 1
Mult.: 1

No

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

M85049/8-20W
Amphenol PCD
1: $105.22
22Expected 28/9/2026

Mfr. Part No.
M85049/8-20W

Mouser Part No
523-85049/8-20W

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

Datasheet

22Expected 28/9/2026

$105.22

$89.45

$83.84

$79.85

$76.04

Min.: 1
Mult.: 1

No

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

M85049/8-9N
Amphenol PCD
1: $67.47
5Expected 27/11/2026

Mfr. Part No.
M85049/8-9N

Mouser Part No
523-85049/8-9N

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

Datasheet

5Expected 27/11/2026

$67.47

$63.02

$63.01

$62.00

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 24

M85049/82-24W03
Amphenol PCD
1: $88.94
25In Stock

Mfr. Part No.
M85049/82-24W03

Mouser Part No
523-85049/82-24W03

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 24

Datasheet

25In Stock

$88.94

$76.35

$71.74

$68.33

$65.06

Min.: 1
Mult.: 1

No

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

M85049/82-28W02
Amphenol PCD
1: $84.63
18Expected 24/11/2026

Mfr. Part No.
M85049/82-28W02

Mouser Part No
523-85049/82-28W02

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

Datasheet

18Expected 24/11/2026

$84.63

$79.42

$79.41

$78.30

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 84 Backshell Band Lock

M85049/84-16W03
Amphenol PCD
1: $110.84
15Expected 29/10/2026

Mfr. Part No.
M85049/84-16W03

Mouser Part No
523-85049/84-16W03

Circular MIL Spec Backshells 84 Backshell Band Lock

Datasheet

15Expected 29/10/2026

$110.84

$98.53

$96.29

$91.11

View

Min.: 1
Mult.: 1

No

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

M85049/85-16W01
Amphenol PCD
1: $71.13
15Expected 8/12/2026

Mfr. Part No.
M85049/85-16W01

Mouser Part No
523-85049/85-16W01

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

Datasheet

15Expected 8/12/2026

$71.13

$61.84

$58.19

$57.64

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 24

M85049/85-24W02
Amphenol PCD
1: $95.21
25Expected 29/9/2026

Mfr. Part No.
M85049/85-24W02

Mouser Part No
523-85049/85-24W02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 24

Datasheet

25Expected 29/9/2026

$95.21

$86.85

$82.91

$74.34

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 22

M85049/86-22W02
Amphenol PCD
1: $97.04
20Expected 13/10/2026

Mfr. Part No.
M85049/86-22W02

Mouser Part No
523-85049/86-22W02

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 22

Datasheet

20Expected 13/10/2026

$97.04

$89.37

$89.26

$88.94

View

Min.: 1
Mult.: 1

No

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

M85049/87-12W02
Amphenol PCD
1: $103.07
6On Order

Mfr. Part No.
M85049/87-12W02

Mouser Part No
523-85049/87-12W02

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

Datasheet

6On Order

$103.07

$91.64

$89.56

$85.30

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

M85049/9-12W
Amphenol PCD
1: $115.44
24Expected 16/9/2026

Mfr. Part No.
M85049/9-12W

Mouser Part No
523-85049/9-12W

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

Datasheet

24Expected 16/9/2026

$115.44

$107.97

$81.08

$78.77

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 9 Backshell Env

M85049/9-19W
Amphenol PCD
1: $61.96
17Expected 24/11/2026

Mfr. Part No.
M85049/9-19W

Mouser Part No
523-85049/9-19W

Circular MIL Spec Backshells 9 Backshell Env

Datasheet

17Expected 24/11/2026

$61.96

$61.95

$60.36

$59.79

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

M85049/9-57W
Amphenol PCD
1: $63.48
23Expected 29/9/2026

Mfr. Part No.
M85049/9-57W

Mouser Part No
523-85049/9-57W

Circular MIL Spec Backshells BACKSHELL ENV R/A OD CAD

Datasheet

23Expected 29/9/2026

$63.48

$62.86

$58.66

$56.75

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 9 Backshell Env

M85049/9-9W
Amphenol PCD
1: $60.48
22Expected 25/11/2026

Mfr. Part No.
M85049/9-9W

Mouser Part No
523-85049/9-9W

Circular MIL Spec Backshells 9 Backshell Env

Datasheet

22Expected 25/11/2026

$60.48

$51.41

$50.25

$47.98

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL

M85049/1821Z07
Amphenol PCD
1: $119.33
11In Stock

Mfr. Part No.
M85049/1821Z07

Mouser Part No
523-M850491821Z07

Circular MIL Spec Backshells BACKSHELL

Datasheet

11In Stock

$119.33

$106.07

View

Min.: 1
Mult.: 1

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

M85049/1911Z03
Amphenol PCD
1: $93.13
25Expected 25/11/2026

Mfr. Part No.
M85049/1911Z03

Mouser Part No
523-M850491911Z03

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

Datasheet

25Expected 25/11/2026

$93.13

$84.89

$79.70

View

Min.: 1
Mult.: 1

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

M85049/1913Z04
Amphenol PCD
1: $96.48
25Expected 26/11/2026

Mfr. Part No.
M85049/1913Z04

Mouser Part No
523-M850491913Z04

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

Datasheet

25Expected 26/11/2026

$96.48

$83.65

$75.17

Min.: 1
Mult.: 1

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

M85049/79-13Z03
Amphenol PCD
1: $121.75
18Expected 14/9/2026

Mfr. Part No.
M85049/79-13Z03

Mouser Part No
523-M8504979-13Z03

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

Datasheet

18Expected 14/9/2026

$121.75

$115.15

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells M85049/10-05N

A850491005N
Amphenol PCD
1: $98.75
15Expected 13/10/2026

Mfr. Part No.
A850491005N

Mouser Part No
523-A850491005N

Circular MIL Spec Backshells M85049/10-05N

15Expected 13/10/2026

$98.75

$85.63

$83.68

Min.: 1
Mult.: 1

Circular MIL Spec Backshells M85049/47W22

A8504947W22
Amphenol PCD
1: $32.52
23Expected 11/9/2026

Mfr. Part No.
A8504947W22

Mouser Part No
523-A8504947W22

Circular MIL Spec Backshells M85049/47W22

23Expected 11/9/2026

$32.52

$27.64

$25.50

$25.19

Min.: 1
Mult.: 1

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

M85049/1819N03
Amphenol PCD
1: $94.49
25Stock Available

Mfr. Part No.
M85049/1819N03

Mouser Part No
523-85049/1819N03

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

Datasheet

25Stock Available

More Info Available

$94.49

$80.32

$75.29

$71.69

$68.27

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL

A8504911814W
Amphenol PCD
1: $49.22
25Stock Available

Mfr. Part No.
A8504911814W

Mouser Part No
523-A8504911814W

Circular MIL Spec Backshells BACKSHELL

25Stock Available

More Info Available

$49.22

$42.36

$39.71

$37.81

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL

A85049118S18W
Amphenol PCD
1: $79.53
25Stock Available

Mfr. Part No.
A85049118S18W

Mouser Part No
523-A85049118S18W

Circular MIL Spec Backshells BACKSHELL

Datasheet

25Stock Available

More Info Available

$79.53

$68.27

$64.48

$61.40

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 128 Backshell Band

A850491281
Amphenol PCD
1: $27.35
25Stock Available

Mfr. Part No.
A850491281

Mouser Part No
523-A850491281

Circular MIL Spec Backshells 128 Backshell Band

25Stock Available

More Info Available

$27.35

$23.68

$22.58

$21.84

$20.52

Min.: 1
Mult.: 1