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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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Part #

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-25ZP02
Amphenol PCD
1: €75.81
53In Stock

Mfr. Part No.
M85049/88-25ZP02

Mouser Part No
523-M85049/88-25ZP02

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

53In Stock

€75.81

€66.00

€56.36

€54.77

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-21ZP02
Amphenol PCD
1: €65.95
29In Stock

Mfr. Part No.
M85049/88-21ZP02

Mouser Part No
523-M85049/88-21ZP02

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

29In Stock

€65.95

€57.11

€45.30

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-18ZP02
Amphenol PCD
1: €61.61
31In Stock

Mfr. Part No.
M85049/85-18ZP02

Mouser Part No
523-M85049/85-18ZP02

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

31In Stock

€61.61

€46.73

€45.80

€45.18

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-16ZP02
Amphenol PCD
1: €52.04
38In Stock

Mfr. Part No.
M85049/85-16ZP02

Mouser Part No
523-M85049/85-16ZP02

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

38In Stock

€52.04

€45.12

€41.40

€41.10

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

M85049/82-10ZP03
Amphenol PCD
1: €49.64
34In Stock

Mfr. Part No.
M85049/82-10ZP03

Mouser Part No
523-M85049/82-10ZP03

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

Datasheet

34In Stock

€49.64

€42.61

€39.39

€38.34

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 1

M85049/85-12ZP01
Amphenol PCD
1: €53.95
40In Stock

Mfr. Part No.
M85049/85-12ZP01

Mouser Part No
523-M85049/85-12ZP01

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 1

Datasheet

40In Stock

€53.95

€53.91

€40.88

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-12ZP02
Amphenol PCD
1: €55.00
15In Stock

Mfr. Part No.
M85049/85-12ZP02

Mouser Part No
523-M85049/85-12ZP02

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

15In Stock

€55.00

€38.35

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-16ZP02
Amphenol PCD
1: €61.62
11In Stock

Mfr. Part No.
M85049/82-16ZP02

Mouser Part No
523-M85049/82-16ZP02

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

11In Stock

€61.62

€61.58

€45.78

€45.11

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-24ZP01
Amphenol PCD
1: €74.64
5In Stock

Mfr. Part No.
M85049/85-24ZP01

Mouser Part No
523-M85049/85-24ZP01

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

5In Stock

€74.64

€64.67

€55.49

€54.05

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/82-12ZP02
Amphenol PCD
1: €57.53
15In Stock

Mfr. Part No.
M85049/82-12ZP02

Mouser Part No
523-M85049/82-12ZP02

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Datasheet

15In Stock

€57.53

€42.78

€41.60

€41.32

Quote

Min.: 1
Mult.: 1

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

M85049/85-14ZP02
Amphenol PCD
1: €52.74
25In Stock

Mfr. Part No.
M85049/85-14ZP02

Mouser Part No
523-M85049/85-14ZP02

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

Datasheet

25In Stock

€52.74

€49.41

€39.70

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-16ZP01
Amphenol PCD
1: €59.31
15In Stock

Mfr. Part No.
M85049/85-16ZP01

Mouser Part No
523-M85049/85-16ZP01

Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 1

Datasheet

15In Stock

€59.31

€41.10

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

M85049/82-12ZP03
Amphenol PCD
1: €57.53
9In Stock

Mfr. Part No.
M85049/82-12ZP03

Mouser Part No
523-M85049/82-12ZP03

Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

Datasheet

9In Stock

€57.53

€50.09

€39.97

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/85-08ZP02
Amphenol PCD
1: €50.98
8In Stock
25Expected 28/07/2026

Mfr. Part No.
M85049/85-08ZP02

Mouser Part No
523-M85049/85-08ZP02

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Datasheet

8In Stock

25Expected 28/07/2026

€50.98

€44.82

€35.78

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-24ZP02
Amphenol PCD
1: €74.64
4In Stock

Mfr. Part No.
M85049/85-24ZP02

Mouser Part No
523-M85049/85-24ZP02

Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

4In Stock

€74.64

€64.67

€50.71

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/85-10ZP02
Amphenol PCD
1: €52.94
6In Stock

Mfr. Part No.
M85049/85-10ZP02

Mouser Part No
523-M85049/85-10ZP02

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Datasheet

6In Stock

€52.94

€46.86

€39.35

€37.50

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-19ZP02
Amphenol PCD
1: €63.73
16In Stock

Mfr. Part No.
M85049/88-19ZP02

Mouser Part No
523-M85049/88-19ZP02

Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

16In Stock

€63.73

€43.89

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/87-08ZP03
Amphenol PCD
1: €81.06
25In Stock

Mfr. Part No.
M85049/87-08ZP03

Mouser Part No
523-M85049/87-08ZP03

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

25In Stock

€81.06

€80.88

€55.78

€55.59

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9

M85049/78-09N02
Amphenol PCD
1: €60.60
27In Stock

Mfr. Part No.
M85049/78-09N02

Mouser Part No
523-85049/78-09N02

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9

Datasheet

27In Stock

€60.60

€52.39

€46.79

€44.57

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/87-10ZP03
Amphenol PCD
1: €73.23
23In Stock

Mfr. Part No.
M85049/87-10ZP03

Mouser Part No
523-M85049/87-10ZP03

Circular MIL Spec Backshells 90 Degrees Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

23In Stock

€73.23

€65.09

€63.62

€61.58

View

Min.: 1
Mult.: 1

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

M85049/1714N02
Amphenol PCD
1: €53.74
53In Stock

Mfr. Part No.
M85049/1714N02

Mouser Part No
523-85049/1714N02

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

Datasheet

53In Stock

€53.74

€46.21

€45.50

€44.07

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-28ZP02
Amphenol PCD
1: €79.40
23In Stock

Mfr. Part No.
M85049/82-28ZP02

Mouser Part No
523-M85049/82-28ZP02

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

23In Stock

€79.40

€79.25

€54.59

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

M85049/82-08ZP03
Amphenol PCD
1: €47.10
28In Stock

Mfr. Part No.
M85049/82-08ZP03

Mouser Part No
523-M85049/82-08ZP03

Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 3

Datasheet

28In Stock

€47.10

€40.84

€37.62

€37.52

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-18ZP02
Amphenol PCD
1: €55.91
15In Stock

Mfr. Part No.
M85049/82-18ZP02

Mouser Part No
523-M85049/82-18ZP02

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2

Datasheet

15In Stock

€55.91

€48.49

€47.39

€45.73

€41.36

Min.: 1
Mult.: 1

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-18ZP03
Amphenol PCD
1: €62.58
32In Stock

Mfr. Part No.
M85049/82-18ZP03

Mouser Part No
523-M85049/82-18ZP03

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

Datasheet

32In Stock

€62.58

€62.46

€44.00

€43.89

Min.: 1
Mult.: 1