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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 10 Backshell Env-EMI/RFI

M85049/10-21W
Amphenol PCD
1: 745,18 kr.
20In Stock
25Expected 04/11/2026

Mfr. Part No.
M85049/10-21W

Mouser Part No
523-85049/10-21W

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

Datasheet

20In Stock

25Expected 04/11/2026

745,18 kr.

714,37 kr.

714,22 kr.

696,32 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/10-25W
Amphenol PCD
1: 476,54 kr.
30In Stock
25Expected 20/10/2026

Mfr. Part No.
M85049/10-25W

Mouser Part No
523-85049/10-25W

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

Datasheet

30In Stock

25Expected 20/10/2026

476,54 kr.

452,90 kr.

452,82 kr.

451,55 kr.

448,42 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

M85049/10-31W
Amphenol PCD
1: 609,56 kr.
27In Stock
25Expected 07/09/2026

Mfr. Part No.
M85049/10-31W

Mouser Part No
523-85049/10-31W

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

Datasheet

27In Stock

25Expected 07/09/2026

609,56 kr.

548,16 kr.

532,79 kr.

502,51 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/10-32W
Amphenol PCD
1: 618,81 kr.
19In Stock

Mfr. Part No.
M85049/10-32W

Mouser Part No
523-85049/10-32W

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

Datasheet

19In Stock

618,81 kr.

553,23 kr.

553,16 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

M85049/10-41W
Amphenol PCD
1: 624,55 kr.
23In Stock

Mfr. Part No.
M85049/10-41W

Mouser Part No
523-85049/10-41W

Circular MIL Spec Backshells 10 Backshell Env-EMI/RFI

Datasheet

23In Stock

624,55 kr.

546,15 kr.

510,64 kr.

506,91 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 24

M85049/10-52W
Amphenol PCD
1: 731,83 kr.
18In Stock

Mfr. Part No.
M85049/10-52W

Mouser Part No
523-85049/10-52W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 24

Datasheet

18In Stock

731,83 kr.

667,37 kr.

652,30 kr.

638,35 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 28

M85049/10-55W
Amphenol PCD
1: 715,56 kr.
16In Stock

Mfr. Part No.
M85049/10-55W

Mouser Part No
523-85049/10-55W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 28

Datasheet

16In Stock

715,56 kr.

715,49 kr.

701,09 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 32

M85049/10-63W
Amphenol PCD
1: 1.037,76 kr.
19In Stock

Mfr. Part No.
M85049/10-63W

Mouser Part No
523-85049/10-63W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 32

Datasheet

19In Stock

1.037,76 kr.

952,49 kr.

931,16 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

M85049/10-71W
Amphenol PCD
1: 1.205,61 kr.
32In Stock

Mfr. Part No.
M85049/10-71W

Mouser Part No
523-85049/10-71W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

Datasheet

32In Stock

1.205,61 kr.

1.057,31 kr.

991,14 kr.

939,14 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

M85049/10-73W
Amphenol PCD
1: 1.093,34 kr.
12In Stock

Mfr. Part No.
M85049/10-73W

Mouser Part No
523-85049/10-73W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

Datasheet

12In Stock

1.093,34 kr.

1.093,26 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

M85049/10-75W
Amphenol PCD
1: 1.174,35 kr.
28In Stock

Mfr. Part No.
M85049/10-75W

Mouser Part No
523-85049/10-75W

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 36

Datasheet

28In Stock

1.174,35 kr.

1.134,89 kr.

1.112,51 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-112W
Amphenol PCD
1: 489,67 kr.
55In Stock

Mfr. Part No.
M85049/11-112W

Mouser Part No
523-85049/11-112W

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

55In Stock

489,67 kr.

382,03 kr.

378,97 kr.

346,29 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-11W
Amphenol PCD
1: 630,67 kr.
37In Stock

Mfr. Part No.
M85049/11-11W

Mouser Part No
523-85049/11-11W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

37In Stock

630,67 kr.

539,88 kr.

506,24 kr.

482,14 kr.

460,36 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-13W
Amphenol PCD
1: 527,65 kr.
44In Stock

Mfr. Part No.
M85049/11-13W

Mouser Part No
523-85049/11-13W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

44In Stock

527,65 kr.

516,75 kr.

497,58 kr.

476,99 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-15W
Amphenol PCD
1: 537,34 kr.
24In Stock

Mfr. Part No.
M85049/11-15W

Mouser Part No
523-85049/11-15W

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

24In Stock

537,34 kr.

533,69 kr.

526,15 kr.

521,75 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-17W
Amphenol PCD
1: 433,28 kr.
43In Stock

Mfr. Part No.
M85049/11-17W

Mouser Part No
523-85049/11-17W

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

43In Stock

433,28 kr.

361,81 kr.

352,63 kr.

335,40 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-25W
Amphenol PCD
1: 417,91 kr.
56In Stock

Mfr. Part No.
M85049/11-25W

Mouser Part No
523-85049/11-25W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

56In Stock

417,91 kr.

370,24 kr.

360,39 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-37W
Amphenol PCD
1: 748,31 kr.
24In Stock

Mfr. Part No.
M85049/11-37W

Mouser Part No
523-85049/11-37W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

24In Stock

748,31 kr.

682,44 kr.

585,16 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 11 Backshell Env

M85049/11-55W
Amphenol PCD
1: 699,08 kr.
35In Stock
25Expected 19/08/2026

Mfr. Part No.
M85049/11-55W

Mouser Part No
523-85049/11-55W

Circular MIL Spec Backshells 11 Backshell Env

Datasheet

35In Stock

25Expected 19/08/2026

699,08 kr.

603,29 kr.

580,39 kr.

552,71 kr.

534,66 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-63W
Amphenol PCD
1: 765,47 kr.
18In Stock

Mfr. Part No.
M85049/11-63W

Mouser Part No
523-85049/11-63W

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

Datasheet

18In Stock

765,47 kr.

765,40 kr.

746,30 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1708W02
Amphenol PCD
1: 379,19 kr.
37In Stock

Mfr. Part No.
M85049/1708W02

Mouser Part No
523-85049/1708W02

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

Datasheet

37In Stock

379,19 kr.

353,08 kr.

346,29 kr.

323,17 kr.

307,73 kr.

Min.: 1
Mult.: 1

No

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

M85049/1710W03
Amphenol PCD
1: 451,93 kr.
49In Stock

Mfr. Part No.
M85049/1710W03

Mouser Part No
523-85049/1710W03

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

Datasheet

49In Stock

451,93 kr.

360,02 kr.

348,23 kr.

342,94 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 16

M85049/1716W06
Amphenol PCD
1: 685,95 kr.
31In Stock

Mfr. Part No.
M85049/1716W06

Mouser Part No
523-85049/1716W06

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 16

Datasheet

31In Stock

685,95 kr.

457,60 kr.

451,40 kr.

431,49 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 22

M85049/1722W06
Amphenol PCD
1: 552,56 kr.
47In Stock

Mfr. Part No.
M85049/1722W06

Mouser Part No
523-85049/1722W06

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 22

Datasheet

47In Stock

552,56 kr.

491,32 kr.

490,05 kr.

480,13 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 11

M85049/1811W02
Amphenol PCD
1: 363,60 kr.
30In Stock
100On Order

Mfr. Part No.
M85049/1811W02

Mouser Part No
523-85049/1811W02

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 11

Datasheet

30In Stock

100On Order

363,60 kr.

315,04 kr.

307,80 kr.

Min.: 1
Mult.: 1

No