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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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Results: 11,097

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RoHS Compliant

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Part #

Circular MIL Spec Backshells ENVIRONMENTAL SS20 ES04 CLAMP CAD

BEL1SSL20042CW
Amphenol PCD
1: $83.53
16In Stock

Mfr. Part #
BEL1SSL20042CW

Mouser Part #
523-BEL1SSL20042CW

Circular MIL Spec Backshells ENVIRONMENTAL SS20 ES04 CLAMP CAD

Datasheet

16In Stock

$83.53

$71.33

View

Min.: 1
Mult.: 1

No

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

BLL1SSK24029XW
Amphenol PCD
1: $71.91
4In Stock

Mfr. Part #
BLL1SSK24029XW

Mouser Part #
523-BLL1SSK24029XW

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

Datasheet

4In Stock

$71.91

View

Min.: 1
Mult.: 1

No

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

BLL1SSL24029XW
Amphenol PCD
1: $73.45
25In Stock

Mfr. Part #
BLL1SSL24029XW

Mouser Part #
523-BLL1SSL24029XW

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

Datasheet

25In Stock

$73.45

$62.72

$60.31

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 33 Backshell E Nut

A8504933116
Amphenol PCD
1: $79.59
25In Stock

Mfr. Part #
A8504933116

Mouser Part #
523-A8504933116

Circular MIL Spec Backshells 33 Backshell E Nut

25In Stock

$79.59

$67.65

$64.59

$59.19

View

Min.: 1
Mult.: 1

No

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

M85049/88-13N03
Amphenol PCD
1: $55.46
1,566On Order

Mfr. Part #
M85049/88-13N03

Mouser Part #
523-85049/88-13N03

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

Datasheet

1,566On Order

$55.46

$52.33

$46.34

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-9N03
Amphenol PCD
1: $49.84
2,249On Order

Mfr. Part #
M85049/88-9N03

Mouser Part #
523-85049/88-9N03

Circular MIL Spec Backshells 88 Backshell Band Lock

Datasheet

2,249On Order

$49.84

$45.93

$43.81

$42.43

View

Min.: 1
Mult.: 1

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

M85049/1813W04
Amphenol PCD
1: $98.30
316On Order

Mfr. Part #
M85049/1813W04

Mouser Part #
523-85049/1813W04

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

Datasheet

316On Order

$98.30

$89.89

$85.12

$75.60

$72.84

Min.: 1
Mult.: 1

No

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

M85049/89-23W03
Amphenol PCD
1: $135.08
440On Order

Mfr. Part #
M85049/89-23W03

Mouser Part #
523-85049/89-23W03

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

Datasheet

440On Order

$135.08

$122.35

$104.49

$97.69

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: $81.82
847On Order

Mfr. Part #
M85049/90-11W03

Mouser Part #
523-85049/90-11W03

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

Datasheet

847On Order

$81.82

$70.46

$68.83

$67.26

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/189W02
Amphenol PCD
1: $89.31
8In Stock

Mfr. Part #
M85049/189W02

Mouser Part #
523-M85049/189W02

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

8In Stock

$89.31

$70.21

$65.81

$62.15

Min.: 1
Mult.: 1

No

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

M85049/10-19N
Amphenol PCD
1: $196.30
22Expected 2026-04-23

Mfr. Part #
M85049/10-19N

Mouser Part #
523-85049/10-19N

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

Datasheet

22Expected 2026-04-23

$196.30

$196.28

View

Min.: 1
Mult.: 1

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

M85049/10-27N
Amphenol PCD
1: $115.29
21Expected 2026-03-05

Mfr. Part #
M85049/10-27N

Mouser Part #
523-85049/10-27N

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

Datasheet

21Expected 2026-03-05

$115.29

$109.18

$104.20

Min.: 1
Mult.: 1

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

M85049/10-31N
Amphenol PCD
1: $141.57
50Expected 2026-04-23

Mfr. Part #
M85049/10-31N

Mouser Part #
523-85049/10-31N

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

Datasheet

50Expected 2026-04-23

$141.57

$115.48

$113.68

$107.97

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-33N
Amphenol PCD
1: $97.29
25Expected 2026-03-05

Mfr. Part #
M85049/11-33N

Mouser Part #
523-85049/11-33N

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

Datasheet

25Expected 2026-03-05

$97.29

$83.73

$83.49

$81.43

$80.31

Min.: 1
Mult.: 1

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

M85049/1815N03
Amphenol PCD
1: $92.19
100On Order

Mfr. Part #
M85049/1815N03

Mouser Part #
523-85049/1815N03

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

Datasheet

100On Order

$92.19

$83.96

$77.21

$74.95

View

Min.: 1
Mult.: 1

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

M85049/1817N05A
Amphenol PCD
1: $110.72
25Expected 2026-03-23

Mfr. Part #
M85049/1817N05A

Mouser Part #
523-85049/1817N05A

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

Datasheet

25Expected 2026-03-23

$110.72

$98.42

$94.63

$91.47

$86.42

Min.: 1
Mult.: 1

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

M85049/1823N07
Amphenol PCD
1: $121.14
25Expected 2026-05-11

Mfr. Part #
M85049/1823N07

Mouser Part #
523-85049/1823N07

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

Datasheet

25Expected 2026-05-11

$121.14

$103.18

$96.72

$92.10

$87.71

Min.: 1
Mult.: 1

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

M85049/1915N03
Amphenol PCD
1: $84.39
95On Order

Mfr. Part #
M85049/1915N03

Mouser Part #
523-85049/1915N03

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

Datasheet

95On Order

$84.39

$79.16

$79.14

$78.81

View

Min.: 1
Mult.: 1

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

M85049/1915N05
Amphenol PCD
1: $80.86
113On Order

Mfr. Part #
M85049/1915N05

Mouser Part #
523-85049/1915N05

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

Datasheet

113On Order

$80.86

$74.26

$71.04

$67.45

View

Min.: 1
Mult.: 1

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

M85049/1917N04
Amphenol PCD
1: $109.43
45Expected 2026-03-16

Mfr. Part #
M85049/1917N04

Mouser Part #
523-85049/1917N04

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

Datasheet

45Expected 2026-03-16

$109.43

$97.84

$87.88

$77.38

View

Min.: 1
Mult.: 1

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

M85049/1923N09
Amphenol PCD
1: $114.86
25On Order

Mfr. Part #
M85049/1923N09

Mouser Part #
523-85049/1923N09

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

Datasheet

25On Order

$114.86

$97.64

$91.52

$87.16

$83.00

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

M85049/1925N07
Amphenol PCD
1: $131.99
25Expected 2026-04-23

Mfr. Part #
M85049/1925N07

Mouser Part #
523-85049/1925N07

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

Datasheet

25Expected 2026-04-23

$131.99

$106.84

$100.14

$93.88

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

M85049/1925N07A
Amphenol PCD
1: $112.68
24Expected 2026-05-11

Mfr. Part #
M85049/1925N07A

Mouser Part #
523-85049/1925N07A

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25

Datasheet

24Expected 2026-05-11

$112.68

$103.77

$94.36

$94.34

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N03
Amphenol PCD
1: $76.15
89On Order

Mfr. Part #
M85049/2117N03

Mouser Part #
523-85049/2117N03

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

Datasheet

89On Order

$76.15

$67.31

$60.68

$56.96

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

M85049/25-130N
Amphenol PCD
1: $132.19
24Expected 2026-03-05

Mfr. Part #
M85049/25-130N

Mouser Part #
523-85049/25-130N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

Datasheet

24Expected 2026-03-05

$132.19

$118.90

$114.33

$110.52

$104.41

Min.: 1
Mult.: 1