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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 ST NIC SZ 17

M85049/1817N02
Amphenol PCD
1: 415,75 kr.
5In Stock

Mfr. Part No.
M85049/1817N02

Mouser Part No
523-85049/1817N02

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17

Datasheet

5In Stock

415,75 kr.

385,01 kr.

334,06 kr.

321,00 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1817N03
Amphenol PCD
1: 346,37 kr.
22In Stock

Mfr. Part No.
M85049/1817N03

Mouser Part No
523-85049/1817N03

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

22In Stock

346,37 kr.

324,51 kr.

310,71 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17

M85049/1817N05
Amphenol PCD
1: 465,95 kr.
22In Stock
25Expected 23/02/2026

Mfr. Part No.
M85049/1817N05

Mouser Part No
523-85049/1817N05

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 17

Datasheet

22In Stock

25Expected 23/02/2026

465,95 kr.

425,29 kr.

390,01 kr.

348,01 kr.

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Min.: 1
Mult.: 1

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

M85049/1819N04
Amphenol PCD
1: 438,87 kr.
9In Stock

Mfr. Part No.
M85049/1819N04

Mouser Part No
523-85049/1819N04

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

Datasheet

9In Stock

438,87 kr.

385,91 kr.

370,99 kr.

358,60 kr.

338,91 kr.

Min.: 1
Mult.: 1

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

M85049/1819N05B
Amphenol PCD
1: 460,88 kr.
21In Stock

Mfr. Part No.
M85049/1819N05B

Mouser Part No
523-85049/1819N05B

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

Datasheet

21In Stock

460,88 kr.

429,17 kr.

375,83 kr.

359,80 kr.

View

Min.: 1
Mult.: 1

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

M85049/1819N06
Amphenol PCD
1: 456,63 kr.
24In Stock

Mfr. Part No.
M85049/1819N06

Mouser Part No
523-85049/1819N06

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

Datasheet

24In Stock

456,63 kr.

420,97 kr.

364,42 kr.

356,36 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1819N07
Amphenol PCD
1: 468,12 kr.
22In Stock

Mfr. Part No.
M85049/1819N07

Mouser Part No
523-85049/1819N07

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

22In Stock

468,12 kr.

440,14 kr.

385,53 kr.

361,51 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1821N04
Amphenol PCD
1: 468,71 kr.
4In Stock

Mfr. Part No.
M85049/1821N04

Mouser Part No
523-85049/1821N04

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

4In Stock

468,71 kr.

424,62 kr.

364,27 kr.

358,38 kr.

View

Min.: 1
Mult.: 1

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

M85049/1821N06
Amphenol PCD
1: 448,42 kr.
12In Stock

Mfr. Part No.
M85049/1821N06

Mouser Part No
523-85049/1821N06

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

Datasheet

12In Stock

448,42 kr.

415,90 kr.

383,89 kr.

344,35 kr.

View

Min.: 1
Mult.: 1

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

M85049/1821N06A
Amphenol PCD
1: 476,99 kr.
22In Stock

Mfr. Part No.
M85049/1821N06A

Mouser Part No
523-85049/1821N06A

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

Datasheet

22In Stock

476,99 kr.

424,03 kr.

407,69 kr.

394,04 kr.

372,33 kr.

Min.: 1
Mult.: 1

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

M85049/1821N08
Amphenol PCD
1: 567,11 kr.
1In Stock
25Expected 04/03/2026

Mfr. Part No.
M85049/1821N08

Mouser Part No
523-85049/1821N08

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

Datasheet

1In Stock

25Expected 04/03/2026

567,11 kr.

514,59 kr.

462,67 kr.

411,64 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23

M85049/1823N03
Amphenol PCD
1: 449,61 kr.
10In Stock
50On Order

Mfr. Part No.
M85049/1823N03

Mouser Part No
523-85049/1823N03

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23

Datasheet

10In Stock

50On Order

449,61 kr.

400,60 kr.

362,71 kr.

346,96 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23

M85049/1823N08
Amphenol PCD
1: 516,31 kr.
19In Stock

Mfr. Part No.
M85049/1823N08

Mouser Part No
523-85049/1823N08

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23

Datasheet

19In Stock

516,31 kr.

474,90 kr.

431,04 kr.

407,84 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25

M85049/1825N07A
Amphenol PCD
1: 543,46 kr.
6In Stock

Mfr. Part No.
M85049/1825N07A

Mouser Part No
523-85049/1825N07A

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25

Datasheet

6In Stock

543,46 kr.

508,32 kr.

450,73 kr.

429,32 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25

M85049/1825N09
Amphenol PCD
1: 554,28 kr.
10In Stock

Mfr. Part No.
M85049/1825N09

Mouser Part No
523-85049/1825N09

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25

Datasheet

10In Stock

554,28 kr.

509,07 kr.

463,42 kr.

463,34 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1911N03
Amphenol PCD
1: 362,48 kr.
12In Stock
175On Order

Mfr. Part No.
M85049/1911N03

Mouser Part No
523-85049/1911N03

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

Datasheet

12In Stock

175On Order

362,48 kr.

314,29 kr.

302,20 kr.

292,13 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13

M85049/1913N03
Amphenol PCD
1: 370,69 kr.
31In Stock

Mfr. Part No.
M85049/1913N03

Mouser Part No
523-85049/1913N03

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13

Datasheet

31In Stock

370,69 kr.

315,04 kr.

274,23 kr.

267,59 kr.

260,80 kr.

Min.: 1
Mult.: 1

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

M85049/1915N04
Amphenol PCD
1: 350,55 kr.
24In Stock

Mfr. Part No.
M85049/1915N04

Mouser Part No
523-85049/1915N04

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

Datasheet

24In Stock

350,55 kr.

331,52 kr.

284,08 kr.

284,00 kr.

278,33 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

M85049/1917N03
Amphenol PCD
1: 391,58 kr.
25In Stock
25Expected 11/05/2026

Mfr. Part No.
M85049/1917N03

Mouser Part No
523-85049/1917N03

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

Datasheet

25In Stock

25Expected 11/05/2026

391,58 kr.

350,02 kr.

313,10 kr.

298,18 kr.

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1917N06
Amphenol PCD
1: 341,89 kr.
17In Stock
25Expected 09/03/2026

Mfr. Part No.
M85049/1917N06

Mouser Part No
523-85049/1917N06

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

Datasheet

17In Stock

25Expected 09/03/2026

341,89 kr.

306,08 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

M85049/1917N06A
Amphenol PCD
1: 419,33 kr.
14In Stock

Mfr. Part No.
M85049/1917N06A

Mouser Part No
523-85049/1917N06A

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17

Datasheet

14In Stock

419,33 kr.

398,96 kr.

374,79 kr.

View

Min.: 1
Mult.: 1

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

M85049/1919N03
Amphenol PCD
1: 281,84 kr.
15In Stock

Mfr. Part No.
M85049/1919N03

Mouser Part No
523-85049/1919N03

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

Datasheet

15In Stock

281,84 kr.

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

M85049/1919N06
Amphenol PCD
1: 412,39 kr.
25In Stock

Mfr. Part No.
M85049/1919N06

Mouser Part No
523-85049/1919N06

Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI

Datasheet

25In Stock

412,39 kr.

382,10 kr.

325,63 kr.

316,08 kr.

299,22 kr.

Min.: 1
Mult.: 1

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

M85049/1921N04
Amphenol PCD
1: 389,56 kr.
16In Stock
25Expected 09/03/2026

Mfr. Part No.
M85049/1921N04

Mouser Part No
523-85049/1921N04

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

Datasheet

16In Stock

25Expected 09/03/2026

389,56 kr.

374,64 kr.

363,00 kr.

View

Min.: 1
Mult.: 1

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

M85049/1921N05
Amphenol PCD
1: 463,49 kr.
25In Stock

Mfr. Part No.
M85049/1921N05

Mouser Part No
523-85049/1921N05

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

Datasheet

25In Stock

463,49 kr.

425,74 kr.

394,86 kr.

381,28 kr.

View

Min.: 1
Mult.: 1