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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 ST NICKEL

M85049/25-23N
Amphenol PCD
1: $121.57
11In Stock

Mfr. Part No.
M85049/25-23N

Mouser Part No
523-85049/25-23N

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

Datasheet

11In Stock

$121.57

$111.45

$109.79

$106.12

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

M85049/2119A05
Amphenol PCD
1: $65.42
24In Stock

Mfr. Part No.
M85049/2119A05

Mouser Part No
523-85049/2119A05

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

Datasheet

24In Stock

$65.42

$56.88

$53.53

$53.50

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/84-10ZP03
Amphenol PCD
1: $115.80
18In Stock

Mfr. Part No.
M85049/84-10ZP03

Mouser Part No
523-M85049/84-10ZP03

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

18In Stock

$115.80

$102.94

$100.61

$96.97

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-20ZP01
Amphenol PCD
1: $99.20
22In Stock

Mfr. Part No.
M85049/85-20ZP01

Mouser Part No
523-M85049/85-20ZP01

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

22In Stock

$99.20

$99.18

$69.77

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-22ZP03
Amphenol PCD
1: $109.63
15In Stock

Mfr. Part No.
M85049/82-22ZP03

Mouser Part No
523-M85049/82-22ZP03

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

15In Stock

$109.63

$109.62

$76.50

$76.49

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A10
Amphenol PCD
1: $81.97
20In Stock

Mfr. Part No.
M85049/2125A10

Mouser Part No
523-85049/2125A10

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

20In Stock

$81.97

$71.09

$69.48

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N05
Amphenol PCD
1: $57.01
26In Stock

Mfr. Part No.
M85049/2125N05

Mouser Part No
523-85049/2125N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

26In Stock

$57.01

$53.98

$53.92

$51.92

Min.: 1
Mult.: 1

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

M85049/1919N04
Amphenol PCD
1: $73.85
26In Stock

Mfr. Part No.
M85049/1919N04

Mouser Part No
523-85049/1919N04

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

Datasheet

26In Stock

$73.85

$67.48

$66.46

$62.21

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

M85049/2113A04
Amphenol PCD
1: $60.13
25In Stock

Mfr. Part No.
M85049/2113A04

Mouser Part No
523-85049/2113A04

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

Datasheet

25In Stock

$60.13

$52.28

$50.01

$47.97

View

Min.: 1
Mult.: 1

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

M85049/79-19N03
Amphenol PCD
1: $98.71
23In Stock

Mfr. Part No.
M85049/79-19N03

Mouser Part No
523-85049/79-19N03

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

Datasheet

23In Stock

$98.71

$93.89

$93.88

$83.33

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 9

M85049/1909W02
Amphenol PCD
1: $91.60
7In Stock
100Expected 8/10/2026

Mfr. Part No.
M85049/1909W02

Mouser Part No
523-85049/1909W02

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 9

Datasheet

7In Stock

100Expected 8/10/2026

$91.60

$77.85

$72.91

$64.61

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Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 62GB Connector

AIA500112000010AA04
Amphenol LTD
1: $182.50
15In Stock

Mfr. Part No.
AIA500112000010AA04

Mouser Part No
523-AIA500112010AA04

Circular MIL Spec Backshells 62GB Connector

Datasheet

15In Stock

$182.50

$174.30

$164.25

$163.88

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

M85049/2914W05A
Amphenol PCD
1: $50.55
24In Stock

Mfr. Part No.
M85049/2914W05A

Mouser Part No
523-85049/2914W05A

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

Datasheet

24In Stock

$50.55

$50.54

$45.71

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

M85049/8-16W
Amphenol PCD
1: $70.42
27In Stock

Mfr. Part No.
M85049/8-16W

Mouser Part No
523-85049/8-16W

Circular MIL Spec Backshells 8 Backshell Env-EMI/RFI

Datasheet

27In Stock

$70.42

$67.73

$67.71

$62.34

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 12

M85049/10-14W
Amphenol PCD
1: $77.81
12In Stock

Mfr. Part No.
M85049/10-14W

Mouser Part No
523-85049/10-14W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 12

Datasheet

12In Stock

$77.81

$77.28

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 25

M85049/14S25W
Amphenol PCD
1: $32.56
37In Stock

Mfr. Part No.
M85049/14S25W

Mouser Part No
523-85049/14S25W

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 25

Datasheet

37In Stock

$32.56

$30.53

$23.58

$21.62

$20.50

Min.: 1
Mult.: 1

No

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

M85049/1720W03
Amphenol PCD
1: $85.61
12In Stock

Mfr. Part No.
M85049/1720W03

Mouser Part No
523-85049/1720W03

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

Datasheet

12In Stock

$85.61

$85.60

$77.41

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 8

M85049/3608W02
Amphenol PCD
1: $52.29
29In Stock

Mfr. Part No.
M85049/3608W02

Mouser Part No
523-85049/3608W02

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 8

Datasheet

29In Stock

$52.29

$52.28

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 10

M85049/3610W03
Amphenol PCD
1: $84.56
22In Stock

Mfr. Part No.
M85049/3610W03

Mouser Part No
523-85049/3610W03

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST CAD SZ 10

Datasheet

22In Stock

$84.56

$73.33

$69.06

$66.00

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-13W
Amphenol PCD
1: $49.63
19In Stock

Mfr. Part No.
M85049/7-13W

Mouser Part No
523-85049/7-13W

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

Datasheet

19In Stock

$49.63

$49.61

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 78 Backshell Env-EMI/RFI

M85049/78-15W04
Amphenol PCD
1: $129.65
17In Stock

Mfr. Part No.
M85049/78-15W04

Mouser Part No
523-85049/78-15W04

Circular MIL Spec Backshells 78 Backshell Env-EMI/RFI

Datasheet

17In Stock

$129.65

$100.10

$89.11

$88.88

$73.70

Min.: 1
Mult.: 1

No

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

M85049/199Z02
Amphenol PCD
1: $87.18
16In Stock

Mfr. Part No.
M85049/199Z02

Mouser Part No
523-M850491909Z02

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

Datasheet

16In Stock

$87.18

$75.60

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL

A850492908N02A
Amphenol PCD
1: $52.44
19In Stock

Mfr. Part No.
A850492908N02A

Mouser Part No
523-A850492908N02A

Circular MIL Spec Backshells BACKSHELL

19In Stock

$52.44

$44.58

$41.86

$41.83

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 8

M85049/298A01
Amphenol PCD
1: $49.42
13In Stock

Mfr. Part No.
M85049/298A01

Mouser Part No
523-85049/298A01

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 8

Datasheet

13In Stock

$49.42

$44.62

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells

97B2504318
Amphenol PCD
1: $36.41
15In Stock

Mfr. Part No.
97B2504318

Mouser Part No
523-97B2504318

Circular MIL Spec Backshells

15In Stock

$36.41

$30.94

View

Min.: 1
Mult.: 1