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 EMI/ RFI ST NIC SZ 25

M85049/1825N06
Amphenol PCD
1: 481,77 kr.
50In Stock

Mfr. Part No.
M85049/1825N06

Mouser Part No
523-85049/1825N06

Amphenol PCD

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

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Datasheet

50In Stock

481,77 kr.

437,01 kr.

405,00 kr.

387,62 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N07
Amphenol PCD
1: 428,13 kr.
80In Stock

Mfr. Part No.
M85049/1825N07

Mouser Part No
523-85049/1825N07

Amphenol PCD

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

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Datasheet

80In Stock

428,13 kr.

406,12 kr.

395,45 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N07B
Amphenol PCD
1: 554,28 kr.
23In Stock

Mfr. Part No.
M85049/1825N07B

Mouser Part No
523-85049/1825N07B

Amphenol PCD

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

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Datasheet

23In Stock

554,28 kr.

498,63 kr.

479,45 kr.

463,42 kr.

437,83 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1825N08
Amphenol PCD
1: 543,39 kr.
69In Stock
50Expected 18/05/2026

Mfr. Part No.
M85049/1825N08

Mouser Part No
523-85049/1825N08

Amphenol PCD

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

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Datasheet

69In Stock

50Expected 18/05/2026

543,39 kr.

499,30 kr.

454,16 kr.

454,02 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 NIC SZ 25

M85049/1825N10
Amphenol PCD
1: 536,82 kr.
26In Stock

Mfr. Part No.
M85049/1825N10

Mouser Part No
523-85049/1825N10

Amphenol PCD

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

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Datasheet

26In Stock

536,82 kr.

499,52 kr.

437,01 kr.

436,26 kr.

419,55 kr.

Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells

MIL-DTL-38999 III, IV

Straight

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

M85049/1913N02
Amphenol PCD
1: 398,81 kr.
75In Stock

Mfr. Part No.
M85049/1913N02

Mouser Part No
523-85049/1913N02

Amphenol PCD

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

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Datasheet

75In Stock

398,81 kr.

358,60 kr.

294,82 kr.

289,22 kr.

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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 NIC SZ 13

M85049/1913N04
Amphenol PCD
1: 375,39 kr.
56In Stock
50Expected 23/04/2026

Mfr. Part No.
M85049/1913N04

Mouser Part No
523-85049/1913N04

Amphenol PCD

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

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Datasheet

56In Stock

50Expected 23/04/2026

375,39 kr.

344,95 kr.

296,24 kr.

270,65 kr.

268,56 kr.

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

M85049/1917N05
Amphenol PCD
1: 536,82 kr.
47In Stock
50Expected 16/03/2026

Mfr. Part No.
M85049/1917N05

Mouser Part No
523-85049/1917N05

Amphenol PCD

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

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Datasheet

47In Stock

50Expected 16/03/2026

536,82 kr.

496,99 kr.

417,61 kr.

328,84 kr.

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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 NIC SZ 19

M85049/1919N07
Amphenol PCD
1: 420,52 kr.
63In Stock
100Expected 09/03/2026

Mfr. Part No.
M85049/1919N07

Mouser Part No
523-85049/1919N07

Amphenol PCD

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

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Datasheet

63In Stock

100Expected 09/03/2026

420,52 kr.

388,89 kr.

330,55 kr.

317,57 kr.

305,11 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 NIC SZ 23

M85049/1923N07
Amphenol PCD
1: 463,86 kr.
43In Stock

Mfr. Part No.
M85049/1923N07

Mouser Part No
523-85049/1923N07

Amphenol PCD

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

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Datasheet

43In Stock

463,86 kr.

431,86 kr.

378,30 kr.

362,11 kr.

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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 NIC SZ 23

M85049/1923N08
Amphenol PCD
1: 471,32 kr.
26In Stock

Mfr. Part No.
M85049/1923N08

Mouser Part No
523-85049/1923N08

Amphenol PCD

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

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Datasheet

26In Stock

471,32 kr.

400,75 kr.

400,68 kr.

357,41 kr.

346,74 kr.

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

M85049/1925N04
Amphenol PCD
1: 449,99 kr.
25In Stock
25Expected 10/03/2026

Mfr. Part No.
M85049/1925N04

Mouser Part No
523-85049/1925N04

Amphenol PCD

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

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Datasheet

25In Stock

25Expected 10/03/2026

449,99 kr.

382,40 kr.

371,96 kr.

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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 NIC SZ 25

M85049/1925N05
Amphenol PCD
1: 371,51 kr.
45In Stock

Mfr. Part No.
M85049/1925N05

Mouser Part No
523-85049/1925N05

Amphenol PCD

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

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Datasheet

45In Stock

371,51 kr.

358,08 kr.

344,50 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 NIC SZ 25

M85049/1925N08
Amphenol PCD
1: 498,63 kr.
29In Stock

Mfr. Part No.
M85049/1925N08

Mouser Part No
523-85049/1925N08

Amphenol PCD

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

Learn More

Datasheet

29In Stock

498,63 kr.

443,20 kr.

426,12 kr.

411,94 kr.

389,19 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 NIC SZ 25

M85049/1925N10
Amphenol PCD
1: 500,57 kr.
49In Stock
50Expected 28/04/2026

Mfr. Part No.
M85049/1925N10

Mouser Part No
523-85049/1925N10

Amphenol PCD

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

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Datasheet

49In Stock

50Expected 28/04/2026

500,57 kr.

436,26 kr.

393,44 kr.

386,06 kr.

380,46 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 NICKEL

M85049/25-29N
Amphenol PCD
1: 664,24 kr.
24In Stock

Mfr. Part No.
M85049/25-29N

Mouser Part No
523-85049/25-29N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NICKEL

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Datasheet

24In Stock

664,24 kr.

605,75 kr.

582,40 kr.

563,01 kr.

531,90 kr.

Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells

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

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 11 STRAIN RELIEF NIC

M85049/38-11N
Amphenol PCD
1: 68,33 kr.
692In Stock
1.000On Order

Mfr. Part No.
M85049/38-11N

Mouser Part No
523-85049/38-11N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 11 STRAIN RELIEF NIC

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Datasheet

692In Stock

1.000On Order

68,33 kr.

63,93 kr.

56,47 kr.

56,10 kr.

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 13 STRAIN RELIEF NIC

M85049/38-13N
Amphenol PCD
1: 71,91 kr.
436In Stock
500Expected 20/04/2026

Mfr. Part No.
M85049/38-13N

Mouser Part No
523-85049/38-13N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 13 STRAIN RELIEF NIC

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Datasheet

436In Stock

500Expected 20/04/2026

71,91 kr.

67,81 kr.

57,52 kr.

55,35 kr.

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 15 STRAIN RELIEF NIC

M85049/38-15N
Amphenol PCD
1: 78,26 kr.
856In Stock

Mfr. Part No.
M85049/38-15N

Mouser Part No
523-85049/38-15N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 15 STRAIN RELIEF NIC

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Datasheet

856In Stock

78,26 kr.

66,54 kr.

62,29 kr.

59,38 kr.

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Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters 38 Backshell Strain Relief Clamp

M85049/38-17N
Amphenol PCD
1: 73,63 kr.
601In Stock

Mfr. Part No.
M85049/38-17N

Mouser Part No
523-85049/38-17N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters 38 Backshell Strain Relief Clamp

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Datasheet

601In Stock

73,63 kr.

66,24 kr.

63,63 kr.

61,32 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 19 STRAIN RELIEF NIC

M85049/38-19N
Amphenol PCD
1: 84,45 kr.
240In Stock
200Expected 06/05/2026

Mfr. Part No.
M85049/38-19N

Mouser Part No
523-85049/38-19N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 19 STRAIN RELIEF NIC

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Datasheet

240In Stock

200Expected 06/05/2026

84,45 kr.

75,64 kr.

72,51 kr.

71,02 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 23 STRAIN RELIEF NICKEL

M85049/38-23N
Amphenol PCD
1: 116,45 kr.
175In Stock

Mfr. Part No.
M85049/38-23N

Mouser Part No
523-85049/38-23N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 23 STRAIN RELIEF NICKEL

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Datasheet

175In Stock

116,45 kr.

101,01 kr.

93,47 kr.

87,43 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 9 STRAIN RELIEF NICKEL

M85049/38-9N
Amphenol PCD
1: 85,86 kr.
676In Stock

Mfr. Part No.
M85049/38-9N

Mouser Part No
523-85049/38-9N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 9 STRAIN RELIEF NICKEL

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Datasheet

676In Stock

85,86 kr.

78,93 kr.

75,87 kr.

67,51 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 11 STRAIN RELIEF NIC

M85049/38S11N
Amphenol PCD
1: 97,95 kr.
485In Stock
500Expected 16/03/2026

Mfr. Part No.
M85049/38S11N

Mouser Part No
523-85049/38S11N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 11 STRAIN RELIEF NIC

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Datasheet

485In Stock

500Expected 16/03/2026

97,95 kr.

87,21 kr.

82,88 kr.

79,97 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 13 STRAIN RELIEF NIC

M85049/38S13N
Amphenol PCD
1: 110,18 kr.
1.084In Stock

Mfr. Part No.
M85049/38S13N

Mouser Part No
523-85049/38S13N

Amphenol PCD

Circular MIL Spec Strain Reliefs & Adapters ST BACKSHELL SZ 13 STRAIN RELIEF NIC

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Datasheet

1.084In Stock

110,18 kr.

98,92 kr.

93,32 kr.

89,82 kr.

View

Min.: 1
Mult.: 1

Strain Reliefs

MIL-DTL-38999 III, IV

Straight

Backshell Clamps

Types of Circular MIL Spec Connectors

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