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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 Backshell;Non Env-EMI/RFI;BZN

M85049/25-25Z
Amphenol PCD
1: £63.69
7In Stock

Mfr. Part No.
M85049/25-25Z

Mouser Part No
523-M8504925-25Z

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

Datasheet

7In Stock

£63.69

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells ENVIRONMENTAL SS10 ES03 CLAMP CAD

BEL1SSL10032CW
Amphenol PCD
1: £33.20
10In Stock

Mfr. Part No.
BEL1SSL10032CW

Mouser Part No
523-BEL1SSL10032CW

Circular MIL Spec Backshells ENVIRONMENTAL SS10 ES03 CLAMP CAD

Datasheet

10In Stock

£33.20

£28.86

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells ENVIRONMENTAL SS14 ES04 CLAMP CAD

BEL1SSL14042CW
Amphenol PCD
1: £35.18
2In Stock

Mfr. Part No.
BEL1SSL14042CW

Mouser Part No
523-BEL1SSL14042CW

Circular MIL Spec Backshells ENVIRONMENTAL SS14 ES04 CLAMP CAD

Datasheet

2In Stock

£35.18

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells ENVIRONMENTAL SS16 ES04 CLAMP NI

BEL1SSL16042CN
Amphenol PCD
1: £34.89
8In Stock

Mfr. Part No.
BEL1SSL16042CN

Mouser Part No
523-BEL1SSL16042CN

Circular MIL Spec Backshells ENVIRONMENTAL SS16 ES04 CLAMP NI

Datasheet

8In Stock

£34.89

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells ENVIRONMENTAL SS18 ES06 CLAMP NI

BEL1SSL18062CN
Amphenol PCD
1: £36.56
8In Stock

Mfr. Part No.
BEL1SSL18062CN

Mouser Part No
523-BEL1SSL18062CN

Circular MIL Spec Backshells ENVIRONMENTAL SS18 ES06 CLAMP NI

Datasheet

8In Stock

£36.56

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells ENVIRONMENTAL SS20 ES04 CLAMP CAD

BEL1SSL20042CW
Amphenol PCD
1: £40.86
16In Stock

Mfr. Part No.
BEL1SSL20042CW

Mouser Part No
523-BEL1SSL20042CW

Circular MIL Spec Backshells ENVIRONMENTAL SS20 ES04 CLAMP CAD

Datasheet

16In Stock

£40.86

£34.89

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BAND LOCK EMI/RFI ST SS24 ES02 WO-BND CA

BLL1SSK24029XW
Amphenol PCD
1: £35.17
4In Stock

Mfr. Part No.
BLL1SSK24029XW

Mouser Part No
523-BLL1SSK24029XW

Circular MIL Spec Backshells BAND LOCK EMI/RFI ST SS24 ES02 WO-BND CA

Datasheet

4In Stock

£35.17

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BAND LOCK EMI/RFI ST SS24 ES02 WO-BND CAD

BLL1SSL24029XW
Amphenol PCD
1: £35.92
25In Stock

Mfr. Part No.
BLL1SSL24029XW

Mouser Part No
523-BLL1SSL24029XW

Circular MIL Spec Backshells BAND LOCK EMI/RFI ST SS24 ES02 WO-BND CAD

Datasheet

25In Stock

£35.92

£30.68

£29.50

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 33 Backshell E Nut

A8504933116
Amphenol PCD
1: £38.93
25In Stock

Mfr. Part No.
A8504933116

Mouser Part No
523-A8504933116

Circular MIL Spec Backshells 33 Backshell E Nut

25In Stock

£38.93

£33.09

£31.59

£28.95

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 13

M85049/88-13N03
Amphenol PCD
1: £27.12
1,566On Order

Mfr. Part No.
M85049/88-13N03

Mouser Part No
523-85049/88-13N03

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 13

Datasheet

1,566On Order

£27.12

£25.60

£22.66

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-9N03
Amphenol PCD
1: £24.37
2,249On Order

Mfr. Part No.
M85049/88-9N03

Mouser Part No
523-85049/88-9N03

Circular MIL Spec Backshells 88 Backshell Band Lock

Datasheet

2,249On Order

£24.37

£22.46

£21.42

£20.75

£20.33

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

M85049/1813W04
Amphenol PCD
1: £48.08
316On Order

Mfr. Part No.
M85049/1813W04

Mouser Part No
523-85049/1813W04

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

Datasheet

316On Order

£48.08

£43.96

£41.63

£38.13

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23

M85049/89-23W03
Amphenol PCD
1: £66.07
440On Order

Mfr. Part No.
M85049/89-23W03

Mouser Part No
523-85049/89-23W03

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23

Datasheet

440On Order

£66.07

£59.84

£51.11

£47.78

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

M85049/90-11W03
Amphenol PCD
1: £40.02
852On Order

Mfr. Part No.
M85049/90-11W03

Mouser Part No
523-85049/90-11W03

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

Datasheet

852On Order

£40.02

£34.46

£33.66

£32.90

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/189W02
Amphenol PCD
1: £43.68
8In Stock

Mfr. Part No.
M85049/189W02

Mouser Part No
523-M85049/189W02

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

8In Stock

£43.68

£34.34

£34.08

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14

M85049/10-19N
Amphenol PCD
1: £96.01
22Expected 23/04/2026

Mfr. Part No.
M85049/10-19N

Mouser Part No
523-85049/10-19N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14

Datasheet

22Expected 23/04/2026

£96.01

£96.00

£93.49

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18

M85049/10-27N
Amphenol PCD
1: £56.39
21Expected 10/03/2026

Mfr. Part No.
M85049/10-27N

Mouser Part No
523-85049/10-27N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18

Datasheet

21Expected 10/03/2026

£56.39

£53.40

£50.97

Min.: 1
Mult.: 1

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

M85049/10-31N
Amphenol PCD
1: £69.25
50Expected 23/04/2026

Mfr. Part No.
M85049/10-31N

Mouser Part No
523-85049/10-31N

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

Datasheet

50Expected 23/04/2026

£69.25

£56.48

£55.60

£52.81

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-33N
Amphenol PCD
1: £47.59
25Expected 09/03/2026

Mfr. Part No.
M85049/11-33N

Mouser Part No
523-85049/11-33N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

25Expected 09/03/2026

£47.59

£40.95

£40.84

£39.92

Min.: 1
Mult.: 1

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

M85049/1815N03
Amphenol PCD
1: £45.09
100On Order

Mfr. Part No.
M85049/1815N03

Mouser Part No
523-85049/1815N03

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

Datasheet

100On Order

£45.09

£41.07

£37.77

£36.66

£35.10

Min.: 1
Mult.: 1

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

M85049/1817N05A
Amphenol PCD
1: £54.15
25Expected 23/03/2026

Mfr. Part No.
M85049/1817N05A

Mouser Part No
523-85049/1817N05A

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

Datasheet

25Expected 23/03/2026

£54.15

£48.14

£46.29

£44.74

£42.27

Min.: 1
Mult.: 1

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

M85049/1823N07
Amphenol PCD
1: £59.25
25Expected 11/05/2026

Mfr. Part No.
M85049/1823N07

Mouser Part No
523-85049/1823N07

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

Datasheet

25Expected 11/05/2026

£59.25

£50.47

£47.31

£45.05

£43.96

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15

M85049/1915N03
Amphenol PCD
1: £41.28
95On Order

Mfr. Part No.
M85049/1915N03

Mouser Part No
523-85049/1915N03

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15

Datasheet

95On Order

£41.28

£38.72

£38.71

£38.54

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15

M85049/1915N05
Amphenol PCD
1: £39.55
113On Order

Mfr. Part No.
M85049/1915N05

Mouser Part No
523-85049/1915N05

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15

Datasheet

113On Order

£39.55

£36.33

£34.75

£33.54

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

M85049/1917N04
Amphenol PCD
1: £53.52
45Expected 16/03/2026

Mfr. Part No.
M85049/1917N04

Mouser Part No
523-85049/1917N04

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

Datasheet

45Expected 16/03/2026

£53.52

£47.86

£42.99

£37.84

View

Min.: 1
Mult.: 1