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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 Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-22ZP03
Amphenol PCD
1: $80.62
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

$80.62

$56.28

Min.: 1
Mult.: 1

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

M85049/25-23N
Amphenol PCD
1: $91.41
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

$91.41

$82.75

$81.27

$78.05

$74.79

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-20ZP03
Amphenol PCD
1: $67.29
23In Stock

Mfr. Part No.
M85049/82-20ZP03

Mouser Part No
523-M85049/82-20ZP03

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

23In Stock

$67.29

$58.36

$57.03

$51.28

$49.83

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-22ZP01
Amphenol PCD
1: $78.78
23In Stock

Mfr. Part No.
M85049/85-22ZP01

Mouser Part No
523-M85049/85-22ZP01

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

23In Stock

$78.78

$78.77

$54.98

Min.: 1
Mult.: 1

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

M85049/1919N04
Amphenol PCD
1: $55.85
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

$55.85

$50.45

$49.19

$48.88

$46.54

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 13

M85049/2113A04
Amphenol PCD
1: $39.33
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

$39.33

$35.53

$35.05

$32.26

View

Min.: 1
Mult.: 1

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

M85049/79-19N03
Amphenol PCD
1: $74.07
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

$74.07

$71.26

$71.25

$66.63

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21

M85049/10-22N
Amphenol PCD
1: $83.21
11In Stock

Mfr. Part No.
M85049/10-22N

Mouser Part No
523-85049/10-22N

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21

Datasheet

11In Stock

$83.21

$73.98

$72.29

$68.83

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-20ZP02
Amphenol PCD
1: $67.29
21In Stock

Mfr. Part No.
M85049/82-20ZP02

Mouser Part No
523-M85049/82-20ZP02

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

21In Stock

$67.29

$58.36

$57.03

$51.28

$49.83

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-24ZP03
Amphenol PCD
1: $86.43
20In Stock

Mfr. Part No.
M85049/82-24ZP03

Mouser Part No
523-M85049/82-24ZP03

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

20In Stock

$86.43

$86.34

$59.98

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-22ZP02
Amphenol PCD
1: $70.51
24In Stock

Mfr. Part No.
M85049/85-22ZP02

Mouser Part No
523-M85049/85-22ZP02

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

24In Stock

$70.51

$61.15

$59.77

$59.63

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N10A
Amphenol PCD
1: $50.10
25In Stock

Mfr. Part No.
M85049/2125N10A

Mouser Part No
523-85049/2125N10A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

25In Stock

$50.10

$47.51

$47.40

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

M85049/85-18N02
Amphenol PCD
1: $49.40
28In Stock

Mfr. Part No.
M85049/85-18N02

Mouser Part No
523-85049/85-18N02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 18

Datasheet

28In Stock

$49.40

$42.97

$42.96

$39.67

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-33W
Amphenol PCD
1: $68.07
22In Stock

Mfr. Part No.
M85049/11-33W

Mouser Part No
523-85049/11-33W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

22In Stock

$68.07

$62.37

$62.36

$59.39

Min.: 1
Mult.: 1

No

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

M85049/3620W06
Amphenol PCD
1: $72.44
15In Stock

Mfr. Part No.
M85049/3620W06

Mouser Part No
523-85049/3620W06

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

Datasheet

15In Stock

$72.44

$66.80

$66.79

Quote

Min.: 1
Mult.: 1

No

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

M85049/1909W02
Amphenol PCD
1: $67.36
3In Stock
100Expected 2026/10/08

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

3In Stock

100Expected 2026/10/08

$67.36

$57.25

$53.61

$47.52

View

Min.: 1
Mult.: 1

No

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

M85049/1712W04
Amphenol PCD
1: $53.00
24In Stock

Mfr. Part No.
M85049/1712W04

Mouser Part No
523-85049/1712W04

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

Datasheet

24In Stock

$53.00

$51.21

Min.: 1
Mult.: 1

No

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

M85049/2914W02
Amphenol PCD
1: $42.84
24In Stock

Mfr. Part No.
M85049/2914W02

Mouser Part No
523-85049/2914W02

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

Datasheet

24In Stock

$42.84

$36.83

$34.63

$32.98

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 62GB Connector

AIA500112000010AA04
Amphenol LTD
1: $134.21
15In Stock

Mfr. Part No.
AIA500112000010AA04

Mouser Part No
523-AIA500112010AA04

Circular MIL Spec Backshells 62GB Connector

Datasheet

15In Stock

$134.21

$130.56

Min.: 1
Mult.: 1

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

M85049/10-14W
Amphenol PCD
1: $84.53
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

$84.53

$75.21

$75.20

$75.13

View

Min.: 1
Mult.: 1

No

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

M85049/14S25W
Amphenol PCD
1: $23.84
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

$23.84

$22.13

$18.17

$18.10

View

Min.: 1
Mult.: 1

No

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

M85049/1720W03
Amphenol PCD
1: $64.51
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

$64.51

$64.50

View

Min.: 1
Mult.: 1

No

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

M85049/3608W02
Amphenol PCD
1: $41.66
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

$41.66

Min.: 1
Mult.: 1

No

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

M85049/3610W03
Amphenol PCD
1: $62.19
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

$62.19

$53.93

$50.97

$48.54

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV 45 DEG OD CAD

M85049/7-13W
Amphenol PCD
1: $38.79
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

$38.79

$38.77

Min.: 1
Mult.: 1

No