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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 ST BLACK SZ 17

M85049/2117A03A
Amphenol PCD
1: 40,24 €
40In Stock

Mfr. Part No.
M85049/2117A03A

Mouser Part No
523-85049/2117A03A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

40In Stock

40,24 €

34,98 €

32,92 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A04
Amphenol PCD
1: 40,24 €
14In Stock

Mfr. Part No.
M85049/2117A04

Mouser Part No
523-85049/2117A04

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

14In Stock

40,24 €

34,98 €

32,92 €

31,81 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A06
Amphenol PCD
1: 42,68 €
7In Stock

Mfr. Part No.
M85049/2117A06

Mouser Part No
523-85049/2117A06

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

7In Stock

42,68 €

37,11 €

34,92 €

32,59 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N02A
Amphenol PCD
1: 39,07 €
3In Stock

Mfr. Part No.
M85049/2117N02A

Mouser Part No
523-85049/2117N02A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

Datasheet

3In Stock

39,07 €

33,97 €

31,97 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N05
Amphenol PCD
1: 41,80 €
12In Stock

Mfr. Part No.
M85049/2117N05

Mouser Part No
523-85049/2117N05

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

12In Stock

41,80 €

35,84 €

33,60 €

31,99 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N05A
Amphenol PCD
1: 43,02 €
3In Stock
25Expected 9/29/2026

Mfr. Part No.
M85049/2117N05A

Mouser Part No
523-85049/2117N05A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

Datasheet

3In Stock

25Expected 9/29/2026

43,02 €

36,84 €

34,53 €

32,89 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06A
Amphenol PCD
1: 43,97 €
13In Stock

Mfr. Part No.
M85049/2117N06A

Mouser Part No
523-85049/2117N06A

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

13In Stock

43,97 €

38,24 €

35,98 €

35,72 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

M85049/2119A07B
Amphenol PCD
1: 46,58 €
4In Stock

Mfr. Part No.
M85049/2119A07B

Mouser Part No
523-85049/2119A07B

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

Datasheet

4In Stock

46,58 €

40,50 €

38,12 €

38,00 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2119N04
Amphenol PCD
1: 40,19 €
22In Stock

Mfr. Part No.
M85049/2119N04

Mouser Part No
523-85049/2119N04

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

22In Stock

40,19 €

34,94 €

32,88 €

32,76 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N06
Amphenol PCD
1: 42,63 €
15In Stock

Mfr. Part No.
M85049/2119N06

Mouser Part No
523-85049/2119N06

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

15In Stock

42,63 €

37,07 €

33,17 €

32,04 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N07
Amphenol PCD
1: 44,20 €
2In Stock
25Expected 11/24/2026

Mfr. Part No.
M85049/2119N07

Mouser Part No
523-85049/2119N07

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

2In Stock

25Expected 11/24/2026

44,20 €

37,81 €

35,44 €

33,76 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

M85049/2121A03
Amphenol PCD
1: 40,15 €
4In Stock

Mfr. Part No.
M85049/2121A03

Mouser Part No
523-85049/2121A03

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

Datasheet

4In Stock

40,15 €

34,92 €

32,85 €

32,03 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

M85049/2121A08B
Amphenol PCD
1: 47,64 €
3In Stock

Mfr. Part No.
M85049/2121A08B

Mouser Part No
523-85049/2121A08B

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

Datasheet

3In Stock

47,64 €

41,31 €

40,38 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

M85049/2121N03
Amphenol PCD
1: 40,14 €
17In Stock

Mfr. Part No.
M85049/2121N03

Mouser Part No
523-85049/2121N03

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

Datasheet

17In Stock

40,14 €

34,90 €

32,85 €

32,17 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2121N05
Amphenol PCD
1: 41,56 €
16In Stock

Mfr. Part No.
M85049/2121N05

Mouser Part No
523-85049/2121N05

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

16In Stock

41,56 €

35,33 €

34,80 €

33,93 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2121N07A
Amphenol PCD
1: 46,47 €
1In Stock

Mfr. Part No.
M85049/2121N07A

Mouser Part No
523-85049/2121N07A

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

1In Stock

46,47 €

38,82 €

38,03 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 23

M85049/2123A09A
Amphenol PCD
1: 50,47 €
7In Stock

Mfr. Part No.
M85049/2123A09A

Mouser Part No
523-85049/2123A09A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 23

Datasheet

7In Stock

50,47 €

42,78 €

42,77 €

42,17 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

M85049/2123N05
Amphenol PCD
1: 45,07 €
2In Stock

Mfr. Part No.
M85049/2123N05

Mouser Part No
523-85049/2123N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

Datasheet

2In Stock

45,07 €

36,89 €

36,88 €

33,74 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

M85049/2123N06
Amphenol PCD
1: 46,61 €
25In Stock

Mfr. Part No.
M85049/2123N06

Mouser Part No
523-85049/2123N06

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

Datasheet

25In Stock

46,61 €

39,78 €

38,61 €

35,51 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A06A
Amphenol PCD
1: 47,51 €
13In Stock

Mfr. Part No.
M85049/2125A06A

Mouser Part No
523-85049/2125A06A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

13In Stock

47,51 €

41,19 €

40,26 €

38,65 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A08
Amphenol PCD
1: 48,87 €
19In Stock

Mfr. Part No.
M85049/2125A08

Mouser Part No
523-85049/2125A08

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

19In Stock

48,87 €

42,37 €

40,78 €

39,73 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N06A
Amphenol PCD
1: 48,13 €
14In Stock

Mfr. Part No.
M85049/2125N06A

Mouser Part No
523-85049/2125N06A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

14In Stock

48,13 €

41,27 €

39,33 €

37,45 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N08A
Amphenol PCD
1: 50,34 €
9In Stock

Mfr. Part No.
M85049/2125N08A

Mouser Part No
523-85049/2125N08A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

9In Stock

50,34 €

43,65 €

42,66 €

40,75 €

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N10
Amphenol PCD
1: 52,67 €
11In Stock

Mfr. Part No.
M85049/2125N10

Mouser Part No
523-85049/2125N10

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

11In Stock

52,67 €

45,21 €

42,60 €

40,57 €

38,64 €

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/219N01
Amphenol PCD
1: 33,77 €
21In Stock

Mfr. Part No.
M85049/219N01

Mouser Part No
523-85049/219N01

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

21In Stock

33,77 €

28,71 €

27,74 €

27,53 €

View

Min.: 1
Mult.: 1