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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;Env-EMI/RFI;BZN

M85049/1821Z05B
Amphenol PCD
1: $133.08
21In Stock

Mfr. Part #
M85049/1821Z05B

Mouser Part #
523-M850491821Z05B

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

Datasheet

21In Stock

$133.08

$119.70

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Min.: 1
Mult.: 1

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

M85049/1825Z06
Amphenol PCD
1: $145.41
6In Stock

Mfr. Part #
M85049/1825Z06

Mouser Part #
523-M850491825Z06

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

Datasheet

6In Stock

$145.41

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Min.: 1
Mult.: 1

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

M85049/1825Z06A
Amphenol PCD
1: $148.23
10In Stock

Mfr. Part #
M85049/1825Z06A

Mouser Part #
523-M850491825Z06A

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

Datasheet

10In Stock

$148.23

$135.19

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Min.: 1
Mult.: 1

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

M85049/199Z02
Amphenol PCD
1: $94.60
16In Stock

Mfr. Part #
M85049/199Z02

Mouser Part #
523-M850491909Z02

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

Datasheet

16In Stock

$94.60

$82.05

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Min.: 1
Mult.: 1

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

M85049/1911Z03
Amphenol PCD
1: $103.66
5In Stock

Mfr. Part #
M85049/1911Z03

Mouser Part #
523-M850491911Z03

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

Datasheet

5In Stock

$103.66

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Min.: 1
Mult.: 1

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

M85049/1913Z04
Amphenol PCD
1: $107.37
12In Stock

Mfr. Part #
M85049/1913Z04

Mouser Part #
523-M850491913Z04

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

Datasheet

12In Stock

$107.37

$94.40

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Backshell;Non Env;BZN

M85049/2113Z03
Amphenol PCD
1: $78.30
25In Stock

Mfr. Part #
M85049/2113Z03

Mouser Part #
523-M850492113Z03

Circular MIL Spec Backshells Backshell;Non Env;BZN

Datasheet

25In Stock

$78.30

$66.86

$64.29

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Backshell;Non Env;BZN

M85049/2115Z03
Amphenol PCD
1: $77.44
9In Stock
25Expected 2026-04-28

Mfr. Part #
M85049/2115Z03

Mouser Part #
523-M850492115Z03

Circular MIL Spec Backshells Backshell;Non Env;BZN

Datasheet

9In Stock

25Expected 2026-04-28

$77.44

$66.13

$61.26

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Backshell;Non Env;BZN

M85049/2115Z05
Amphenol PCD
1: $84.19
21In Stock

Mfr. Part #
M85049/2115Z05

Mouser Part #
523-M850492115Z05

Circular MIL Spec Backshells Backshell;Non Env;BZN

Datasheet

21In Stock

$84.19

$73.00

View

Min.: 1
Mult.: 1

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

M85049/3618Z07
Amphenol PCD
1: $120.65
30In Stock

Mfr. Part #
M85049/3618Z07

Mouser Part #
523-M850493618Z07

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

Datasheet

30In Stock

$120.65

$107.25

$103.12

View

Min.: 1
Mult.: 1

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

M85049/76-08Z02
Amphenol PCD
1: $130.40
25In Stock

Mfr. Part #
M85049/76-08Z02

Mouser Part #
523-M8504976-08Z02

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

Datasheet

25In Stock

$130.40

$117.29

$112.78

View

Min.: 1
Mult.: 1

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

M85049/79-09Z02
Amphenol PCD
1: $130.40
16In Stock

Mfr. Part #
M85049/79-09Z02

Mouser Part #
523-M8504979-09Z02

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

Datasheet

16In Stock

$130.40

$117.29

View

Min.: 1
Mult.: 1

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

M85049/79-13Z03
Amphenol PCD
1: $137.40
2In Stock

Mfr. Part #
M85049/79-13Z03

Mouser Part #
523-M8504979-13Z03

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

Datasheet

2In Stock

$137.40

View

Min.: 1
Mult.: 1

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

M85049/79-15Z05
Amphenol PCD
1: $150.61
5In Stock

Mfr. Part #
M85049/79-15Z05

Mouser Part #
523-M8504979-15Z05

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

Datasheet

5In Stock

$150.61

View

Min.: 1
Mult.: 1

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

M85049/79-19Z05
Amphenol PCD
1: $153.16
4In Stock

Mfr. Part #
M85049/79-19Z05

Mouser Part #
523-M8504979-19Z05

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

Datasheet

4In Stock

$153.16

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories Strain Relief Clamp Shell Size 8

MS27291-13
Amphenol PCD
1: $46.00
41In Stock

Mfr. Part #
MS27291-13

Mouser Part #
523-MS27291-13

Circular MIL Spec Tools, Hardware & Accessories Strain Relief Clamp Shell Size 8

Datasheet

41In Stock

$46.00

$40.32

$39.71

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Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories MS3115 Backshell MS3115 Dummy Receptacle

MS3115-20A
Amphenol PCD
1: $33.14
8In Stock

Mfr. Part #
MS3115-20A

Mouser Part #
523-MS3115-20A

Circular MIL Spec Tools, Hardware & Accessories MS3115 Backshell MS3115 Dummy Receptacle

Datasheet

8In Stock

$33.14

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories MS3115 Backshell MS3115 Dummy Receptacle

MS3115-8L
Amphenol PCD
1: $23.42
20In Stock

Mfr. Part #
MS3115-8L

Mouser Part #
523-MS3115-8L

Circular MIL Spec Tools, Hardware & Accessories MS3115 Backshell MS3115 Dummy Receptacle

Datasheet

20In Stock

$23.42

$20.89

View

Min.: 1
Mult.: 1

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

M85049/10-150N
Amphenol PCD
1: $121.20
18In Stock

Mfr. Part #
M85049/10-150N

Mouser Part #
523-85049/10-150N

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

Datasheet

18In Stock

$121.20

$109.02

$104.83

$101.33

$95.72

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-21N
Amphenol PCD
1: $103.84
6In Stock

Mfr. Part #
M85049/11-21N

Mouser Part #
523-85049/11-21N

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

6In Stock

$103.84

$93.82

$84.41

$80.19

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 08

M85049/1708N01A
Amphenol PCD
1: $90.40
1In Stock

Mfr. Part #
M85049/1708N01A

Mouser Part #
523-85049/1708N01A

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 08

Datasheet

1In Stock

$90.40

$86.22

$86.21

$84.78

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1714N04A
Amphenol PCD
1: $115.92
3In Stock

Mfr. Part #
M85049/1714N04A

Mouser Part #
523-85049/1714N04A

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

Datasheet

3In Stock

$115.92

$102.89

$100.91

$99.25

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1815N05B
Amphenol PCD
1: $107.10
10In Stock

Mfr. Part #
M85049/1815N05B

Mouser Part #
523-85049/1815N05B

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

10In Stock

$107.10

$96.67

$87.11

$82.69

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11

M85049/1911N01
Amphenol PCD
1: $83.00
14In Stock

Mfr. Part #
M85049/1911N01

Mouser Part #
523-85049/1911N01

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11

Datasheet

14In Stock

$83.00

$70.87

$68.15

$65.87

View

Min.: 1
Mult.: 1

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

M85049/1915N04A
Amphenol PCD
1: $95.81
2In Stock

Mfr. Part #
M85049/1915N04A

Mouser Part #
523-85049/1915N04A

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

Datasheet

2In Stock

$95.81

$83.09

$79.90

$77.23

View

Min.: 1
Mult.: 1