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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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RoHS Compliant

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Part #

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N02
Amphenol PCD
1: ¥7,112.4
10In Stock

Mfr. Part #
M85049/2115N02

Mouser Part #
523-85049/2115N02

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Datasheet

10In Stock

¥7,112.4

¥6,183.9

¥5,605.9

¥5,595.9

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N03
Amphenol PCD
1: ¥7,373.2
15In Stock
25Expected 9/18/2026

Mfr. Part #
M85049/2115N03

Mouser Part #
523-85049/2115N03

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Datasheet

15In Stock

25Expected 9/18/2026

¥7,373.2

¥6,526.1

¥5,996.2

¥5,708.9

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N05
Amphenol PCD
1: ¥7,707
7In Stock
25Expected 10/15/2026

Mfr. Part #
M85049/2115N05

Mouser Part #
523-85049/2115N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Datasheet

7In Stock

25Expected 10/15/2026

¥7,707

¥6,750.3

¥6,326.7

¥6,024.4

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

M85049/2115N05B
Amphenol PCD
1: ¥9,226.9
23In Stock

Mfr. Part #
M85049/2115N05B

Mouser Part #
523-85049/2115N05B

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 15

Datasheet

23In Stock

¥9,226.9

¥7,183.8

¥6,871.6

¥6,760.3

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A02
Amphenol PCD
1: ¥7,330
16In Stock

Mfr. Part #
M85049/2117A02

Mouser Part #
523-85049/2117A02

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

16In Stock

¥7,330

¥6,373.3

¥5,997.9

¥5,953

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A03A
Amphenol PCD
1: ¥7,771.8
40In Stock

Mfr. Part #
M85049/2117A03A

Mouser Part #
523-85049/2117A03A

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

40In Stock

¥7,771.8

¥6,756.9

¥6,358.3

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A04
Amphenol PCD
1: ¥7,771.8
14In Stock

Mfr. Part #
M85049/2117A04

Mouser Part #
523-85049/2117A04

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

14In Stock

¥7,771.8

¥6,756.9

¥6,358.3

¥6,295.2

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

M85049/2117A06
Amphenol PCD
1: ¥8,241.9
7In Stock

Mfr. Part #
M85049/2117A06

Mouser Part #
523-85049/2117A06

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 17

Datasheet

7In Stock

¥8,241.9

¥7,165.6

¥6,743.7

¥6,728.7

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N02A
Amphenol PCD
1: ¥7,545.9
3In Stock

Mfr. Part #
M85049/2117N02A

Mouser Part #
523-85049/2117N02A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

Datasheet

3In Stock

¥7,545.9

¥6,561

¥6,173.9

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N05
Amphenol PCD
1: ¥8,072.5
12In Stock

Mfr. Part #
M85049/2117N05

Mouser Part #
523-85049/2117N05

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

12In Stock

¥8,072.5

¥6,923

¥6,489.5

¥6,178.9

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

M85049/2117N05A
Amphenol PCD
1: ¥8,308.3
3In Stock
25Expected 9/29/2026

Mfr. Part #
M85049/2117N05A

Mouser Part #
523-85049/2117N05A

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 17

Datasheet

3In Stock

25Expected 9/29/2026

¥8,308.3

¥7,115.7

¥6,668.9

¥6,351.7

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06
Amphenol PCD
1: ¥7,713.7
9In Stock
50Expected 8/17/2026

Mfr. Part #
M85049/2117N06

Mouser Part #
523-85049/2117N06

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

9In Stock

50Expected 8/17/2026

¥7,713.7

¥7,167.2

¥6,743.7

¥6,717.1

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2117N06A
Amphenol PCD
1: ¥8,492.7
14In Stock

Mfr. Part #
M85049/2117N06A

Mouser Part #
523-85049/2117N06A

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

14In Stock

¥8,492.7

¥7,384.8

¥6,949.6

¥6,898.1

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

M85049/2119A07B
Amphenol PCD
1: ¥8,996
4In Stock

Mfr. Part #
M85049/2119A07B

Mouser Part #
523-85049/2119A07B

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 19

Datasheet

4In Stock

¥8,996

¥7,821.6

¥7,361.6

¥7,340

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N05
Amphenol PCD
1: ¥7,823.3
22In Stock

Mfr. Part #
M85049/2119N05

Mouser Part #
523-85049/2119N05

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

22In Stock

¥7,823.3

¥6,650.6

¥6,649

¥5,904.9

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N06
Amphenol PCD
1: ¥8,231.9
15In Stock

Mfr. Part #
M85049/2119N06

Mouser Part #
523-85049/2119N06

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

15In Stock

¥8,231.9

¥7,157.2

¥6,406.5

¥6,187.2

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

M85049/2119N07
Amphenol PCD
1: ¥8,481.1
6In Stock

Mfr. Part #
M85049/2119N07

Mouser Part #
523-85049/2119N07

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 19

Datasheet

6In Stock

¥8,481.1

¥7,303.4

¥6,845

¥6,519.4

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

M85049/2121A03
Amphenol PCD
1: ¥7,755.2
4In Stock

Mfr. Part #
M85049/2121A03

Mouser Part #
523-85049/2121A03

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

Datasheet

4In Stock

¥7,755.2

¥6,477.9

¥6,345

¥5,949.7

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

M85049/2121A08B
Amphenol PCD
1: ¥9,201.9
3In Stock

Mfr. Part #
M85049/2121A08B

Mouser Part #
523-85049/2121A08B

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 21

Datasheet

3In Stock

¥9,201.9

¥7,979.4

¥7,798.4

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

M85049/2121N03
Amphenol PCD
1: ¥7,751.9
17In Stock

Mfr. Part #
M85049/2121N03

Mouser Part #
523-85049/2121N03

Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 21

Datasheet

17In Stock

¥7,751.9

¥6,740.3

¥6,345

¥6,213.8

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 21 Backshell Non Env

M85049/2121N05
Amphenol PCD
1: ¥8,027.6
18In Stock

Mfr. Part #
M85049/2121N05

Mouser Part #
523-85049/2121N05

Circular MIL Spec Backshells 21 Backshell Non Env

Datasheet

18In Stock

¥8,027.6

¥6,823.4

¥6,722.1

¥6,552.6

View

Min.: 1
Mult.: 1

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 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

¥7,997.7

¥7,964.5

View

Min.: 1
Mult.: 1