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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 GRMT NUT ST SL OD CAD SZ 15

M85049/14S15W
Amphenol PCD
1: 131,67 kr.
17In Stock

Mfr. Part No.
M85049/14S15W

Mouser Part No
523-85049/14S15W

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 15

Datasheet

17In Stock

131,67 kr.

120,78 kr.

102,80 kr.

94,74 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 17

M85049/14S17W
Amphenol PCD
1: 142,34 kr.
4In Stock

Mfr. Part No.
M85049/14S17W

Mouser Part No
523-85049/14S17W

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 17

Datasheet

4In Stock

142,34 kr.

121,00 kr.

101,68 kr.

97,50 kr.

97,35 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 21

M85049/14S21W
Amphenol PCD
1: 166,95 kr.
12In Stock

Mfr. Part No.
M85049/14S21W

Mouser Part No
523-85049/14S21W

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 21

Datasheet

12In Stock

166,95 kr.

148,60 kr.

137,41 kr.

116,53 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 09

M85049/14S9W
Amphenol PCD
1: 135,25 kr.
13In Stock

Mfr. Part No.
M85049/14S9W

Mouser Part No
523-85049/14S9W

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 09

Datasheet

13In Stock

135,25 kr.

118,91 kr.

101,01 kr.

99,14 kr.

88,03 kr.

Min.: 1
Mult.: 1

No

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

M85049/1710W02
Amphenol PCD
1: 484,68 kr.
4In Stock

Mfr. Part No.
M85049/1710W02

Mouser Part No
523-85049/1710W02

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

Datasheet

4In Stock

484,68 kr.

436,71 kr.

429,47 kr.

423,50 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1712W03
Amphenol PCD
1: 341,22 kr.
25In Stock

Mfr. Part No.
M85049/1712W03

Mouser Part No
523-85049/1712W03

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

Datasheet

25In Stock

341,22 kr.

318,99 kr.

Min.: 1
Mult.: 1

No

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

M85049/1712W03A
Amphenol PCD
1: 448,64 kr.
3In Stock

Mfr. Part No.
M85049/1712W03A

Mouser Part No
523-85049/1712W03A

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

Datasheet

3In Stock

448,64 kr.

381,36 kr.

357,41 kr.

340,40 kr.

328,46 kr.

Min.: 1
Mult.: 1

No

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

M85049/1712W04
Amphenol PCD
1: 431,93 kr.
25In 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

25In Stock

431,93 kr.

395,38 kr.

364,35 kr.

328,46 kr.

Min.: 1
Mult.: 1

No

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

M85049/1712W04A
Amphenol PCD
1: 511,98 kr.
9In Stock

Mfr. Part No.
M85049/1712W04A

Mouser Part No
523-85049/1712W04A

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

Datasheet

9In Stock

511,98 kr.

467,67 kr.

433,80 kr.

427,31 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1714W05
Amphenol PCD
1: 539,13 kr.
18In Stock

Mfr. Part No.
M85049/1714W05

Mouser Part No
523-85049/1714W05

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

Datasheet

18In Stock

539,13 kr.

489,23 kr.

436,34 kr.

387,17 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 14

M85049/1714W05B
Amphenol PCD
1: 486,99 kr.
4In Stock

Mfr. Part No.
M85049/1714W05B

Mouser Part No
523-85049/1714W05B

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 14

Datasheet

4In Stock

486,99 kr.

432,90 kr.

416,27 kr.

402,32 kr.

380,16 kr.

Min.: 1
Mult.: 1

No

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

M85049/1716W03
Amphenol PCD
1: 414,48 kr.
17In Stock

Mfr. Part No.
M85049/1716W03

Mouser Part No
523-85049/1716W03

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

Datasheet

17In Stock

414,48 kr.

396,42 kr.

392,40 kr.

385,09 kr.

341,89 kr.

Min.: 1
Mult.: 1

No

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

M85049/1720W03
Amphenol PCD
1: 485,05 kr.
13In 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

13In Stock

485,05 kr.

450,66 kr.

396,13 kr.

378,67 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1720W04
Amphenol PCD
1: 491,24 kr.
22In Stock

Mfr. Part No.
M85049/1720W04

Mouser Part No
523-85049/1720W04

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

Datasheet

22In Stock

491,24 kr.

417,61 kr.

391,43 kr.

372,78 kr.

362,71 kr.

Min.: 1
Mult.: 1

No

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

M85049/1720W06
Amphenol PCD
1: 495,05 kr.
7In Stock

Mfr. Part No.
M85049/1720W06

Mouser Part No
523-85049/1720W06

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

Datasheet

7In Stock

495,05 kr.

459,46 kr.

404,48 kr.

386,50 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1724W06A
Amphenol PCD
1: 578,08 kr.
22In Stock

Mfr. Part No.
M85049/1724W06A

Mouser Part No
523-85049/1724W06A

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

Datasheet

22In Stock

578,08 kr.

527,12 kr.

506,83 kr.

489,90 kr.

462,82 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

M85049/1813W04
Amphenol PCD
1: 390,75 kr.
5In Stock
200On Order

Mfr. Part No.
M85049/1813W04

Mouser Part No
523-85049/1813W04

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

Datasheet

5In Stock

200On Order

390,75 kr.

369,57 kr.

355,77 kr.

325,85 kr.

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

M85049/1813W04A
Amphenol PCD
1: 460,95 kr.
12In Stock

Mfr. Part No.
M85049/1813W04A

Mouser Part No
523-85049/1813W04A

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 13

Datasheet

12In Stock

460,95 kr.

420,22 kr.

379,49 kr.

377,85 kr.

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1815W05A
Amphenol PCD
1: 563,08 kr.
14In Stock
25Expected 30/04/2026

Mfr. Part No.
M85049/1815W05A

Mouser Part No
523-85049/1815W05A

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Datasheet

14In Stock

25Expected 30/04/2026

563,08 kr.

437,08 kr.

419,63 kr.

392,62 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1817W03A
Amphenol PCD
1: 549,43 kr.
3In Stock

Mfr. Part No.
M85049/1817W03A

Mouser Part No
523-85049/1817W03A

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

Datasheet

3In Stock

549,43 kr.

499,52 kr.

441,71 kr.

390,90 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1817W04
Amphenol PCD
1: 379,19 kr.
23In Stock
100Expected 12/05/2026

Mfr. Part No.
M85049/1817W04

Mouser Part No
523-85049/1817W04

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

Datasheet

23In Stock

100Expected 12/05/2026

379,19 kr.

355,47 kr.

326,15 kr.

326,08 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1817W04A
Amphenol PCD
1: 565,92 kr.
10In Stock

Mfr. Part No.
M85049/1817W04A

Mouser Part No
523-85049/1817W04A

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

Datasheet

10In Stock

565,92 kr.

514,67 kr.

454,39 kr.

394,34 kr.

View

Min.: 1
Mult.: 1

No

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

M85049/1817W06A
Amphenol PCD
1: 597,62 kr.
13In Stock

Mfr. Part No.
M85049/1817W06A

Mouser Part No
523-85049/1817W06A

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

Datasheet

13In Stock

597,62 kr.

546,15 kr.

481,17 kr.

397,84 kr.

384,79 kr.

Min.: 1
Mult.: 1

No

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

M85049/1819W03
Amphenol PCD
1: 439,47 kr.
20In Stock

Mfr. Part No.
M85049/1819W03

Mouser Part No
523-85049/1819W03

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

Datasheet

20In Stock

439,47 kr.

389,79 kr.

372,63 kr.

354,87 kr.

343,68 kr.

Min.: 1
Mult.: 1

No

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

M85049/1819W04
Amphenol PCD
1: 566,14 kr.
7In Stock
25Expected 17/04/2026

Mfr. Part No.
M85049/1819W04

Mouser Part No
523-85049/1819W04

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

Datasheet

7In Stock

25Expected 17/04/2026

566,14 kr.

474,16 kr.

403,06 kr.

360,91 kr.

350,40 kr.

Min.: 1
Mult.: 1

No