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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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Results: 11,079

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RoHS Compliant

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Part #

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2121N07A
Amphenol PCD
1: ¥8,974.4
1In Stock

Mfr. Part #
M85049/2121N07A

Mouser Part #
523-85049/2121N07A

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

1In Stock

¥8,974.4

¥7,497.8

¥7,344.9

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 23

M85049/2123A09A
Amphenol PCD
1: ¥9,745.1
7In Stock

Mfr. Part #
M85049/2123A09A

Mouser Part #
523-85049/2123A09A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 23

Datasheet

7In Stock

¥9,745.1

¥7,946.2

¥7,720.3

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

M85049/2123N05
Amphenol PCD
1: ¥8,705.3
2In Stock

Mfr. Part #
M85049/2123N05

Mouser Part #
523-85049/2123N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 23

Datasheet

2In Stock

¥8,705.3

¥7,124

¥7,122.4

¥6,472.9

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A06A
Amphenol PCD
1: ¥9,175.4
13In Stock

Mfr. Part #
M85049/2125A06A

Mouser Part #
523-85049/2125A06A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

13In Stock

¥9,175.4

¥7,956.2

¥7,775.1

¥7,464.5

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

M85049/2125A08
Amphenol PCD
1: ¥9,437.8
19In Stock

Mfr. Part #
M85049/2125A08

Mouser Part #
523-85049/2125A08

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 25

Datasheet

19In Stock

¥9,437.8

¥8,183.7

¥7,876.5

¥7,673.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N06A
Amphenol PCD
1: ¥9,295
14In Stock

Mfr. Part #
M85049/2125N06A

Mouser Part #
523-85049/2125N06A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

14In Stock

¥9,295

¥7,971.1

¥7,595.8

¥7,233.7

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N08A
Amphenol PCD
1: ¥9,721.8
9In Stock

Mfr. Part #
M85049/2125N08A

Mouser Part #
523-85049/2125N08A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

9In Stock

¥9,721.8

¥8,429.6

¥8,238.6

¥7,869.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

M85049/2125N10
Amphenol PCD
1: ¥10,172
11In Stock

Mfr. Part #
M85049/2125N10

Mouser Part #
523-85049/2125N10

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 25

Datasheet

11In Stock

¥10,172

¥8,731.9

¥8,228.6

¥7,836.6

¥7,462.9

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/219N01
Amphenol PCD
1: ¥6,607.5
21In Stock

Mfr. Part #
M85049/219N01

Mouser Part #
523-85049/219N01

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

21In Stock

¥6,607.5

¥5,693.9

¥5,403.2

¥5,145.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 09

M85049/219N01A
Amphenol PCD
1: ¥6,738.7
1In Stock

Mfr. Part #
M85049/219N01A

Mouser Part #
523-85049/219N01A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 09

Datasheet

1In Stock

¥6,738.7

¥5,516.2

¥5,514.5

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-12N
Amphenol PCD
1: ¥7,308.4
12In Stock

Mfr. Part #
M85049/24-12N

Mouser Part #
523-85049/24-12N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

12In Stock

¥7,308.4

¥6,355

¥5,745.4

¥5,659

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-19N
Amphenol PCD
1: ¥8,884.7
9In Stock

Mfr. Part #
M85049/24-19N

Mouser Part #
523-85049/24-19N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

9In Stock

¥8,884.7

¥7,723.7

¥7,268.5

¥7,039.3

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-4N
Amphenol PCD
1: ¥6,639
23In Stock

Mfr. Part #
M85049/24-4N

Mouser Part #
523-85049/24-4N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

23In Stock

¥6,639

¥5,773.6

¥5,431.5

¥5,421.5

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-56N
Amphenol PCD
1: ¥8,331.6
17In Stock

Mfr. Part #
M85049/24-56N

Mouser Part #
523-85049/24-56N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

17In Stock

¥8,331.6

¥7,243.6

¥6,816.7

¥6,703.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-5N
Amphenol PCD
1: ¥6,416.4
4In Stock

Mfr. Part #
M85049/24-5N

Mouser Part #
523-85049/24-5N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

4In Stock

¥6,416.4

¥5,670.7

¥5,408.2

¥5,210.6

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

M85049/24-6N
Amphenol PCD
1: ¥6,464.6
6In Stock

Mfr. Part #
M85049/24-6N

Mouser Part #
523-85049/24-6N

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI R/A NIC

Datasheet

6In Stock

¥6,464.6

¥5,685.6

¥5,516.2

¥5,358.4

View

Min.: 1
Mult.: 1

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

M85049/25-11N
Amphenol PCD
1: ¥14,608.5
17In Stock

Mfr. Part #
M85049/25-11N

Mouser Part #
523-85049/25-11N

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

Datasheet

17In Stock

¥14,608.5

¥13,321.2

¥13,018.9

View

Min.: 1
Mult.: 1

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

M85049/25-13N
Amphenol PCD
1: ¥10,372.9
25Expected 8/14/2026

Mfr. Part #
M85049/25-13N

Mouser Part #
523-85049/25-13N

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

Datasheet

25Expected 8/14/2026

¥10,372.9

¥9,107.3

¥8,677.1

¥8,303.3

¥7,908

Min.: 1
Mult.: 1

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

M85049/25-18N
Amphenol PCD
1: ¥11,108.8
15In Stock

Mfr. Part #
M85049/25-18N

Mouser Part #
523-85049/25-18N

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

Datasheet

15In Stock

¥11,108.8

¥9,633.8

¥9,414.5

¥9,027.5

View

Min.: 1
Mult.: 1

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

M85049/25-25N
Amphenol PCD
1: ¥12,053.9
9In Stock

Mfr. Part #
M85049/25-25N

Mouser Part #
523-85049/25-25N

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

Datasheet

9In Stock

¥12,053.9

¥10,230.1

¥10,218.5

¥9,397.9

View

Min.: 1
Mult.: 1

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

M85049/25-29N
Amphenol PCD
1: ¥15,030.4
24In Stock

Mfr. Part #
M85049/25-29N

Mouser Part #
523-85049/25-29N

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

Datasheet

24In Stock

¥15,030.4

¥15,028.7

¥14,789.5

¥14,170

View

Min.: 1
Mult.: 1

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

M85049/25-33N
Amphenol PCD
1: ¥12,244.9
9In Stock
25Expected 8/17/2026

Mfr. Part #
M85049/25-33N

Mouser Part #
523-85049/25-33N

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

Datasheet

9In Stock

25Expected 8/17/2026

¥12,244.9

¥10,884.5

¥10,642

¥10,235.1

View

Min.: 1
Mult.: 1

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

M85049/25-43N
Amphenol PCD
1: ¥13,319.6
17In Stock

Mfr. Part #
M85049/25-43N

Mouser Part #
523-85049/25-43N

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

Datasheet

17In Stock

¥13,319.6

¥11,839.6

¥10,505.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 10

M85049/27-10N
Amphenol PCD
1: ¥2,121.1
27In Stock

Mfr. Part #
M85049/27-10N

Mouser Part #
523-85049/27-10N

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 10

Datasheet

27In Stock

¥2,121.1

¥1,803.8

¥1,664.3

¥1,592.9

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 27 Backshell Grommet Nut

M85049/27-12N
Amphenol PCD
1: ¥1,875.3
19In Stock

Mfr. Part #
M85049/27-12N

Mouser Part #
523-85049/27-12N

Circular MIL Spec Backshells 27 Backshell Grommet Nut

Datasheet

19In Stock

¥1,875.3

¥1,657.7

¥1,589.6

¥1,443.4

View

Min.: 1
Mult.: 1