Connectors – Mouser Singapore

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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 BACKSHELL GRMT NUT ST CAD SZ 16

M85049/27-16W
Amphenol PCD
1: $17.90
1In Stock

Mfr. Part No.
M85049/27-16W

Mouser Part No
523-85049/27-16W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 16

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Datasheet

1In Stock

$17.90

$16.28

$15.74

$15.23

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 20

M85049/27-20W
Amphenol PCD
1: $18.44
11In Stock

Mfr. Part No.
M85049/27-20W

Mouser Part No
523-85049/27-20W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 20

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Datasheet

11In Stock

$18.44

$16.62

$16.61

$16.10

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 22

M85049/27-22W
Amphenol PCD
1: $16.89
8In Stock

Mfr. Part No.
M85049/27-22W

Mouser Part No
523-85049/27-22W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 22

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Datasheet

8In Stock

$16.89

$15.11

$14.58

$14.39

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 24

M85049/27-24W
Amphenol PCD
1: $18.26
11In Stock

Mfr. Part No.
M85049/27-24W

Mouser Part No
523-85049/27-24W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 24

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Datasheet

11In Stock

$18.26

$16.73

$16.35

$16.02

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 10

M85049/2910W02
Amphenol PCD
1: $56.09
2In Stock

Mfr. Part No.
M85049/2910W02

Mouser Part No
523-85049/2910W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 10

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Datasheet

2In Stock

$56.09

$48.76

$45.89

$44.43

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 10

M85049/2910W03
Amphenol PCD
1: $57.17
18In Stock

Mfr. Part No.
M85049/2910W03

Mouser Part No
523-85049/2910W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 10

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Datasheet

18In Stock

$57.17

$48.59

$48.58

$46.09

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 12

M85049/2912W03
Amphenol PCD
1: $57.57
26In Stock

Mfr. Part No.
M85049/2912W03

Mouser Part No
523-85049/2912W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 12

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Datasheet

26In Stock

$57.57

$50.05

$48.05

$47.10

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 12

M85049/2912W04A
Amphenol PCD
1: $61.05
2In Stock

Mfr. Part No.
M85049/2912W04A

Mouser Part No
523-85049/2912W04A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 12

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Datasheet

2In Stock

$61.05

$49.03

$47.90

$47.64

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

M85049/2914W02
Amphenol PCD
1: $53.75
24In Stock

Mfr. Part No.
M85049/2914W02

Mouser Part No
523-85049/2914W02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

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Datasheet

24In Stock

$53.75

$47.49

$47.10

$44.85

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

M85049/2914W03
Amphenol PCD
1: $59.11
3In Stock
25Expected 13/10/2026

Mfr. Part No.
M85049/2914W03

Mouser Part No
523-85049/2914W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 14

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Datasheet

3In Stock

25Expected 13/10/2026

$59.11

$51.38

$48.35

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 16

M85049/2916W06
Amphenol PCD
1: $66.29
2In Stock

Mfr. Part No.
M85049/2916W06

Mouser Part No
523-85049/2916W06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 16

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Datasheet

2In Stock

$66.29

$54.25

$54.24

$53.83

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 29 Backshell Non Env

M85049/2916W06B
Amphenol PCD
1: $70.34
3In Stock

Mfr. Part No.
M85049/2916W06B

Mouser Part No
523-85049/2916W06B

Amphenol PCD

Circular MIL Spec Backshells 29 Backshell Non Env

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Datasheet

3In Stock

$70.34

$57.56

$57.54

$57.12

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 20

M85049/2920W04
Amphenol PCD
1: $64.04
9In Stock

Mfr. Part No.
M85049/2920W04

Mouser Part No
523-85049/2920W04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 20

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Datasheet

9In Stock

$64.04

$52.41

$52.40

$52.18

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 20

M85049/2920W05
Amphenol PCD
1: $65.88
14In Stock

Mfr. Part No.
M85049/2920W05

Mouser Part No
523-85049/2920W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 20

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Datasheet

14In Stock

$65.88

$57.28

$53.90

$53.18

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 22

M85049/2922W05
Amphenol PCD
1: $69.52
22In Stock

Mfr. Part No.
M85049/2922W05

Mouser Part No
523-85049/2922W05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST OD CAD SZ 22

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Datasheet

22In Stock

$69.52

$60.44

$53.95

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 10

M85049/31-10W
Amphenol PCD
1: $18.31
6In Stock
100Expected 28/10/2026

Mfr. Part No.
M85049/31-10W

Mouser Part No
523-85049/31-10W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 10

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Datasheet

6In Stock

100Expected 28/10/2026

$18.31

$16.37

$14.47

$13.68

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 12

M85049/31-12W
Amphenol PCD
1: $17.98
3In Stock
75On Order

Mfr. Part No.
M85049/31-12W

Mouser Part No
523-85049/31-12W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 12

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Datasheet

3In Stock

75On Order

$17.98

$15.57

$15.48

$14.97

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-16W
Amphenol PCD
1: $18.26
33In Stock

Mfr. Part No.
M85049/31-16W

Mouser Part No
523-85049/31-16W

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

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Datasheet

33In Stock

$18.26

$17.11

$16.29

$14.10

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 18

M85049/31-18W
Amphenol PCD
1: $21.52
49In Stock

Mfr. Part No.
M85049/31-18W

Mouser Part No
523-85049/31-18W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 18

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Datasheet

49In Stock

$21.52

$18.59

$17.42

$16.50

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 20

M85049/31-20W
Amphenol PCD
1: $20.71
45In Stock
200Expected 5/11/2026

Mfr. Part No.
M85049/31-20W

Mouser Part No
523-85049/31-20W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 20

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Datasheet

45In Stock

200Expected 5/11/2026

$20.71

$18.66

$16.99

$16.84

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 22

M85049/31-22W
Amphenol PCD
1: $19.52
18In Stock

Mfr. Part No.
M85049/31-22W

Mouser Part No
523-85049/31-22W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 22

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Datasheet

18In Stock

$19.52

$18.60

$17.69

$15.72

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 24

M85049/31-24W
Amphenol PCD
1: $21.75
35In Stock

Mfr. Part No.
M85049/31-24W

Mouser Part No
523-85049/31-24W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST CAD SZ 24

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Datasheet

35In Stock

$21.75

$18.29

$17.61

$17.10

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-8W
Amphenol PCD
1: $17.84
2In Stock

Mfr. Part No.
M85049/31-8W

Mouser Part No
523-85049/31-8W

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

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Datasheet

2In Stock

$17.84

$16.61

$15.83

$15.16

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 12

M85049/31S12W
Amphenol PCD
1: $37.39
23In Stock

Mfr. Part No.
M85049/31S12W

Mouser Part No
523-85049/31S12W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 12

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Datasheet

23In Stock

$37.39

$36.50

$36.49

$23.35

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 14

M85049/31S14W
Amphenol PCD
1: $32.48
46In Stock

Mfr. Part No.
M85049/31S14W

Mouser Part No
523-85049/31S14W

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL OD CAD SZ 14

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Datasheet

46In Stock

$32.48

$27.61

$26.40

$24.63

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Min.: 1
Mult.: 1

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