Circular MIL Spec Connectors

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Backshell Clamps

Amphenol PCD Backshell Clamps help to tidy up the cable after termination and provide strain relief at the termination area. The clamps are offered in environmental and non-environmental options, as well as EMI/RFI. The components are available in black zinc nickel, adding to the existing finishes in olive drab gray cadmium, tin, or nickel with a variety of shell sizes 11 through 48. Amphenol PCD Backshell Clamps meet MIL-DTL-38999, MIL-DTL-26482 Series II, MIL-DTL-83723 Series I and II, MIL-DTL-24308, and MIL-DTL-83513.

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Types of Circular MIL Spec Connectors

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Part #

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-47W
Amphenol PCD
1: 668,94 kr.
20In Stock

Mfr. Part No.
M85049/11-47W

Mouser Part No
523-85049/11-47W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

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Datasheet

20In Stock

668,94 kr.

605,60 kr.

543,16 kr.

500,57 kr.

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Min.: 1
Mult.: 1

Environmental Backshells

MIL-DTL-5015, MIL-DTL-26482 II

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Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

M85049/11-59W
Amphenol PCD
1: 706,01 kr.
18In Stock

Mfr. Part No.
M85049/11-59W

Mouser Part No
523-85049/11-59W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD

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Datasheet

18In Stock

706,01 kr.

698,55 kr.

698,48 kr.

659,61 kr.

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Min.: 1
Mult.: 1

Environmental Backshells

MIL-DTL-5015, MIL-DTL-26482 II

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Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1714W03
Amphenol PCD
1: 455,06 kr.
27In Stock

Mfr. Part No.
M85049/1714W03

Mouser Part No
523-85049/1714W03

Amphenol PCD

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

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Datasheet

27In Stock

455,06 kr.

400,15 kr.

384,71 kr.

371,88 kr.

351,37 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

Straight

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

M85049/1716W06
Amphenol PCD
1: 509,29 kr.
42In Stock

Mfr. Part No.
M85049/1716W06

Mouser Part No
523-85049/1716W06

Amphenol PCD

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

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Datasheet

42In Stock

509,29 kr.

452,67 kr.

435,29 kr.

420,74 kr.

397,54 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 I, II

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

M85049/1811W03
Amphenol PCD
1: 345,77 kr.
85In Stock
100Expected 25/03/2026

Mfr. Part No.
M85049/1811W03

Mouser Part No
523-85049/1811W03

Amphenol PCD

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

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Datasheet

85In Stock

100Expected 25/03/2026

345,77 kr.

323,47 kr.

304,22 kr.

288,55 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1811W03A
Amphenol PCD
1: 493,18 kr.
41In Stock

Mfr. Part No.
M85049/1811W03A

Mouser Part No
523-85049/1811W03A

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

41In Stock

493,18 kr.

428,73 kr.

386,88 kr.

347,04 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1813W02
Amphenol PCD
1: 417,61 kr.
48In Stock

Mfr. Part No.
M85049/1813W02

Mouser Part No
523-85049/1813W02

Amphenol PCD

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

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Datasheet

48In Stock

417,61 kr.

361,14 kr.

338,46 kr.

322,35 kr.

309,44 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

M85049/1815W03
Amphenol PCD
1: 365,91 kr.
66In Stock

Mfr. Part No.
M85049/1815W03

Mouser Part No
523-85049/1815W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

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Datasheet

66In Stock

365,91 kr.

338,68 kr.

330,25 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

M85049/1815W04
Amphenol PCD
1: 490,50 kr.
155In Stock

Mfr. Part No.
M85049/1815W04

Mouser Part No
523-85049/1815W04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

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Datasheet

155In Stock

490,50 kr.

450,06 kr.

429,55 kr.

388,22 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

M85049/1815W04A
Amphenol PCD
1: 418,21 kr.
35In Stock

Mfr. Part No.
M85049/1815W04A

Mouser Part No
523-85049/1815W04A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

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Datasheet

35In Stock

418,21 kr.

402,62 kr.

402,54 kr.

Quote

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

M85049/1815W05
Amphenol PCD
1: 440,44 kr.
94In Stock

Mfr. Part No.
M85049/1815W05

Mouser Part No
523-85049/1815W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15

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Datasheet

94In Stock

440,44 kr.

392,92 kr.

370,61 kr.

357,48 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1817W05
Amphenol PCD
1: 481,84 kr.
46In Stock

Mfr. Part No.
M85049/1817W05

Mouser Part No
523-85049/1817W05

Amphenol PCD

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

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Datasheet

46In Stock

481,84 kr.

417,31 kr.

391,20 kr.

372,48 kr.

362,48 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1817W06
Amphenol PCD
1: 462,67 kr.
47In Stock

Mfr. Part No.
M85049/1817W06

Mouser Part No
523-85049/1817W06

Amphenol PCD

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

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Datasheet

47In Stock

462,67 kr.

416,04 kr.

402,09 kr.

382,92 kr.

373,60 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1819W05
Amphenol PCD
1: 484,83 kr.
30In Stock

Mfr. Part No.
M85049/1819W05

Mouser Part No
523-85049/1819W05

Amphenol PCD

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

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Datasheet

30In Stock

484,83 kr.

412,17 kr.

386,28 kr.

367,85 kr.

357,56 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1819W07
Amphenol PCD
1: 648,27 kr.
52In Stock

Mfr. Part No.
M85049/1819W07

Mouser Part No
523-85049/1819W07

Amphenol PCD

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

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Datasheet

52In Stock

648,27 kr.

552,34 kr.

518,99 kr.

418,88 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1821W03
Amphenol PCD
1: 488,41 kr.
41In Stock

Mfr. Part No.
M85049/1821W03

Mouser Part No
523-85049/1821W03

Amphenol PCD

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

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Datasheet

41In Stock

488,41 kr.

463,86 kr.

386,88 kr.

377,40 kr.

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1821W08
Amphenol PCD
1: 636,64 kr.
47In Stock

Mfr. Part No.
M85049/1821W08

Mouser Part No
523-85049/1821W08

Amphenol PCD

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

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Datasheet

47In Stock

636,64 kr.

522,50 kr.

473,19 kr.

442,08 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1823W07
Amphenol PCD
1: 632,68 kr.
25In Stock

Mfr. Part No.
M85049/1823W07

Mouser Part No
523-85049/1823W07

Amphenol PCD

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

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Datasheet

25In Stock

632,68 kr.

568,08 kr.

481,77 kr.

458,04 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1825W05
Amphenol PCD
1: 596,43 kr.
50In Stock

Mfr. Part No.
M85049/1825W05

Mouser Part No
523-85049/1825W05

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

50In Stock

596,43 kr.

539,58 kr.

523,24 kr.

473,19 kr.

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Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825W07
Amphenol PCD
1: 550,40 kr.
24In Stock
100Expected 06/04/2026

Mfr. Part No.
M85049/1825W07

Mouser Part No
523-85049/1825W07

Amphenol PCD

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

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Datasheet

24In Stock

100Expected 06/04/2026

550,40 kr.

493,03 kr.

462,15 kr.

440,14 kr.

434,99 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1825W09
Amphenol PCD
1: 763,08 kr.
35In Stock

Mfr. Part No.
M85049/1825W09

Mouser Part No
523-85049/1825W09

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

Learn More

Datasheet

35In Stock

763,08 kr.

698,93 kr.

507,95 kr.

504,22 kr.

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825W10A
Amphenol PCD
1: 625,82 kr.
23In Stock

Mfr. Part No.
M85049/1825W10A

Mouser Part No
523-85049/1825W10A

Amphenol PCD

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

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Datasheet

23In Stock

625,82 kr.

596,65 kr.

596,58 kr.

588,52 kr.

View

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1911W02
Amphenol PCD
1: 500,12 kr.
41In Stock

Mfr. Part No.
M85049/1911W02

Mouser Part No
523-85049/1911W02

Amphenol PCD

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

Learn More

Datasheet

41In Stock

500,12 kr.

463,19 kr.

391,50 kr.

326,15 kr.

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1911W03
Amphenol PCD
1: 353,98 kr.
77In Stock

Mfr. Part No.
M85049/1911W03

Mouser Part No
523-85049/1911W03

Amphenol PCD

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

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Datasheet

77In Stock

353,98 kr.

326,45 kr.

299,97 kr.

280,57 kr.

268,34 kr.

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1913W04
Amphenol PCD
1: 314,29 kr.
113In Stock

Mfr. Part No.
M85049/1913W04

Mouser Part No
523-85049/1913W04

Amphenol PCD

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

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Datasheet

113In Stock

314,29 kr.

304,96 kr.

304,89 kr.

296,16 kr.

View

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

Backshell Clamps

Types of Circular MIL Spec Connectors

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