Connectors – Mouser Japan

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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 BND LOCK ADPTR ST CAD SZ 21

M85049/88-21W03
Amphenol PCD
1: ¥8,547.5
599In Stock
500Expected 11/25/2026

Mfr. Part #
M85049/88-21W03

Mouser Part #
523-85049/88-21W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 21

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Datasheet

599In Stock

500Expected 11/25/2026

¥8,547.5

¥7,939.6

¥7,778.5

¥7,584.1

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 25

M85049/88-25W03
Amphenol PCD
1: ¥8,992.7
961In Stock

Mfr. Part #
M85049/88-25W03

Mouser Part #
523-85049/88-25W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST CAD SZ 25

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Datasheet

961In Stock

¥8,992.7

¥8,198.7

¥7,203.8

¥6,893.2

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 88 Backshell Band Lock

M85049/88-9W03
Amphenol PCD
1: ¥6,788.5
2,156In Stock
2,890On Order

Mfr. Part #
M85049/88-9W03

Mouser Part #
523-85049/88-9W03

Amphenol PCD

Circular MIL Spec Backshells 88 Backshell Band Lock

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Datasheet

2,156In Stock

2,890On Order

¥6,788.5

¥6,464.6

¥6,298.5

¥5,672.3

¥5,542.8

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

M85049/90-11W03
Amphenol PCD
1: ¥10,540.7
462In Stock
500Expected 10/21/2026

Mfr. Part #
M85049/90-11W03

Mouser Part #
523-85049/90-11W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 11

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Datasheet

462In Stock

500Expected 10/21/2026

¥10,540.7

¥9,064.1

¥8,497.7

¥8,092.4

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 13

M85049/90-13W03
Amphenol PCD
1: ¥9,922.8
353In Stock

Mfr. Part #
M85049/90-13W03

Mouser Part #
523-85049/90-13W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 13

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Datasheet

353In Stock

¥9,922.8

¥9,258.4

¥8,916.2

¥8,652.1

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 15

M85049/90-15W03
Amphenol PCD
1: ¥10,970.9
311In Stock

Mfr. Part #
M85049/90-15W03

Mouser Part #
523-85049/90-15W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A CAD SZ 15

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Datasheet

311In Stock

¥10,970.9

¥9,992.6

¥9,595.6

¥9,050.8

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Backshell;Env-EMI/RFI;BZN

M85049/1825Z10
Amphenol PCD
1: ¥17,028.6
222In Stock

Mfr. Part #
M85049/1825Z10

Mouser Part #
523-M850491825Z10

Amphenol PCD

Circular MIL Spec Backshells Backshell;Env-EMI/RFI;BZN

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Datasheet

222In Stock

¥17,028.6

¥15,920.7

¥15,847.6

¥15,292.8

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-14ZP02
Amphenol PCD
1: ¥10,240.1
7In Stock

Mfr. Part #
M85049/82-14ZP02

Mouser Part #
523-M85049/82-14ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 2

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Datasheet

7In Stock

¥10,240.1

¥8,790

¥8,280.1

¥7,886.4

¥7,509.4

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 11 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-11ZP03
Amphenol PCD
1: ¥9,587.3
20In Stock
50Expected 12/30/2026

Mfr. Part #
M85049/88-11ZP03

Mouser Part #
523-M85049/88-11ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 11 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

20In Stock

50Expected 12/30/2026

¥9,587.3

¥8,230.3

¥7,932.9

¥7,585.8

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 13 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-13ZP03
Amphenol PCD
1: ¥9,912.8
11In Stock

Mfr. Part #
M85049/88-13ZP03

Mouser Part #
523-M85049/88-13ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 13 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

11In Stock

¥9,912.8

¥8,511

¥8,029.3

¥7,645.6

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 15 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-15ZP03
Amphenol PCD
1: ¥10,240.1
5In Stock
25Expected 11/25/2026

Mfr. Part #
M85049/88-15ZP03

Mouser Part #
523-M85049/88-15ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 15 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

5In Stock

25Expected 11/25/2026

¥10,240.1

¥8,790

¥8,280.1

¥7,886.4

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-17ZP02
Amphenol PCD
1: ¥10,578.9
9In Stock

Mfr. Part #
M85049/88-17ZP02

Mouser Part #
523-M85049/88-17ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

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Datasheet

9In Stock

¥10,578.9

¥9,080.7

¥8,544.2

¥8,135.6

¥7,748.6

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-17ZP03
Amphenol PCD
1: ¥10,432.7
17In Stock

Mfr. Part #
M85049/88-17ZP03

Mouser Part #
523-M85049/88-17ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

17In Stock

¥10,432.7

¥9,552.4

¥9,344.8

¥8,841.5

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-19ZP03
Amphenol PCD
1: ¥10,932.7
25In Stock

Mfr. Part #
M85049/88-19ZP03

Mouser Part #
523-M85049/88-19ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

25In Stock

¥10,932.7

¥9,386.3

¥8,816.6

¥8,396.4

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-23ZP02
Amphenol PCD
1: ¥12,075.5
9In Stock

Mfr. Part #
M85049/88-23ZP02

Mouser Part #
523-M85049/88-23ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 2

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Datasheet

9In Stock

¥12,075.5

¥10,344.7

¥9,695.3

¥9,233.5

¥8,793.3

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-23ZP03
Amphenol PCD
1: ¥11,980.8
10In Stock

Mfr. Part #
M85049/88-23ZP03

Mouser Part #
523-M85049/88-23ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

10In Stock

¥11,980.8

¥10,894.5

¥10,760

¥10,153.7

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 9 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-9ZP03
Amphenol PCD
1: ¥9,278.3
24In Stock
50Expected 11/10/2026

Mfr. Part #
M85049/88-9ZP03

Mouser Part #
523-M85049/88-9ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 9 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

24In Stock

50Expected 11/10/2026

¥9,278.3

¥7,964.5

¥7,536

¥7,177.2

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Min.: 1
Mult.: 1

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

M85049/10-14N
Amphenol PCD
1: ¥12,759.8
34In Stock

Mfr. Part #
M85049/10-14N

Mouser Part #
523-85049/10-14N

Amphenol PCD

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

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Datasheet

34In Stock

¥12,759.8

¥11,343

¥10,102.2

Min.: 1
Mult.: 1

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

M85049/10-17N
Amphenol PCD
1: ¥15,035.4
67In Stock
75Expected 11/25/2026

Mfr. Part #
M85049/10-17N

Mouser Part #
523-85049/10-17N

Amphenol PCD

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

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Datasheet

67In Stock

75Expected 11/25/2026

¥15,035.4

¥11,763.2

¥11,530.7

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

M85049/11-18N
Amphenol PCD
1: ¥10,946
37In Stock

Mfr. Part #
M85049/11-18N

Mouser Part #
523-85049/11-18N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV ST NIC

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Datasheet

37In Stock

¥10,946

¥9,492.6

¥9,125.5

¥8,584

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

M85049/1710N03
Amphenol PCD
1: ¥10,308.2
30In Stock

Mfr. Part #
M85049/1710N03

Mouser Part #
523-85049/1710N03

Amphenol PCD

Circular MIL Spec Backshells 17 Backshell Env-EMI/RFI

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Datasheet

30In Stock

¥10,308.2

¥8,841.5

¥8,833.2

¥8,612.3

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

M85049/1811N03
Amphenol PCD
1: ¥8,491
144In Stock
175Expected 10/6/2026

Mfr. Part #
M85049/1811N03

Mouser Part #
523-85049/1811N03

Amphenol PCD

Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI

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Datasheet

144In Stock

175Expected 10/6/2026

¥8,491

¥7,683.8

¥6,624.1

¥6,429.7

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Min.: 1
Mult.: 1

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

M85049/1813N02
Amphenol PCD
1: ¥10,110.5
58In Stock

Mfr. Part #
M85049/1813N02

Mouser Part #
523-85049/1813N02

Amphenol PCD

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

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Datasheet

58In Stock

¥10,110.5

¥9,251.8

¥9,130.5

¥9,014.2

¥7,574.2

Min.: 1
Mult.: 1

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

M85049/1813N03
Amphenol PCD
1: ¥10,776.6
166In Stock
475On Order

Mfr. Part #
M85049/1813N03

Mouser Part #
523-85049/1813N03

Amphenol PCD

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

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Datasheet

166In Stock

475On Order

¥10,776.6

¥9,160.4

¥8,587.4

¥8,178.8

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Min.: 1
Mult.: 1

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

M85049/1813N04
Amphenol PCD
1: ¥11,294.8
75In Stock
275Expected 10/21/2026

Mfr. Part #
M85049/1813N04

Mouser Part #
523-85049/1813N04

Amphenol PCD

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

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Datasheet

75In Stock

275Expected 10/21/2026

¥11,294.8

¥9,600.6

¥8,999.3

¥8,399.7

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Min.: 1
Mult.: 1