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 27 Backshell Grommet Nut

M85049/27-16N
Amphenol PCD
1: $16.10
5In Stock

Mfr. Part No.
M85049/27-16N

Mouser Part No
523-85049/27-16N

Amphenol PCD

Circular MIL Spec Backshells 27 Backshell Grommet Nut

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Datasheet

5In Stock

$16.10

$13.80

$12.38

$11.42

$10.68

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 18

M85049/27-18N
Amphenol PCD
1: $15.23
18In Stock

Mfr. Part No.
M85049/27-18N

Mouser Part No
523-85049/27-18N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 18

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Datasheet

18In Stock

$15.23

$13.97

$12.13

$11.98

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 20

M85049/27-20N
Amphenol PCD
1: $15.46
2In Stock

Mfr. Part No.
M85049/27-20N

Mouser Part No
523-85049/27-20N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 20

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Datasheet

2In Stock

$15.46

$13.75

$13.21

$12.47

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 22

M85049/27-22N
Amphenol PCD
1: $14.50
4In Stock

Mfr. Part No.
M85049/27-22N

Mouser Part No
523-85049/27-22N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 22

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Datasheet

4In Stock

$14.50

$13.64

$13.37

$13.31

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 24

M85049/27-24N
Amphenol PCD
1: $18.41
21In Stock

Mfr. Part No.
M85049/27-24N

Mouser Part No
523-85049/27-24N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 24

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Datasheet

21In Stock

$18.41

$16.14

$15.60

$15.44

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 08

M85049/27-8N
Amphenol PCD
1: $17.04
27In Stock

Mfr. Part No.
M85049/27-8N

Mouser Part No
523-85049/27-8N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NICKEL SZ 08

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Datasheet

27In Stock

$17.04

$16.22

$13.50

$12.43

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 12

M85049/27S12N
Amphenol PCD
1: $27.16
19In Stock

Mfr. Part No.
M85049/27S12N

Mouser Part No
523-85049/27S12N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 12

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Datasheet

19In Stock

$27.16

$23.09

$21.64

$21.34

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 10

M85049/2910A02A
Amphenol PCD
1: $52.43
26In Stock

Mfr. Part No.
M85049/2910A02A

Mouser Part No
523-85049/2910A02A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST BLACK SZ 10

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Datasheet

26In Stock

$52.43

$42.92

$42.91

$42.83

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 10

M85049/2910N03
Amphenol PCD
1: $52.44
15In Stock

Mfr. Part No.
M85049/2910N03

Mouser Part No
523-85049/2910N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 10

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Datasheet

15In Stock

$52.44

$45.60

$42.91

$42.85

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 14

M85049/2914N05
Amphenol PCD
1: $56.49
17In Stock

Mfr. Part No.
M85049/2914N05

Mouser Part No
523-85049/2914N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 14

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Datasheet

17In Stock

$56.49

$48.02

$46.66

$45.55

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 14

M85049/2914N05A
Amphenol PCD
1: $59.53
5In Stock

Mfr. Part No.
M85049/2914N05A

Mouser Part No
523-85049/2914N05A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 14

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Datasheet

5In Stock

$59.53

$51.16

$48.08

$45.78

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 16

M85049/2916N02
Amphenol PCD
1: $53.57
1In Stock

Mfr. Part No.
M85049/2916N02

Mouser Part No
523-85049/2916N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 16

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Datasheet

1In Stock

$53.57

$43.85

$43.83

$43.51

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 16

M85049/2916N04
Amphenol PCD
1: $56.82
17In Stock

Mfr. Part No.
M85049/2916N04

Mouser Part No
523-85049/2916N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 16

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Datasheet

17In Stock

$56.82

$49.41

$46.48

$45.91

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 18

M85049/2918N07B
Amphenol PCD
1: $65.65
18In Stock

Mfr. Part No.
M85049/2918N07B

Mouser Part No
523-85049/2918N07B

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 18

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Datasheet

18In Stock

$65.65

$57.08

$53.72

$53.31

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 20

M85049/2920N05
Amphenol PCD
1: $59.89
17In Stock

Mfr. Part No.
M85049/2920N05

Mouser Part No
523-85049/2920N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 20

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Datasheet

17In Stock

$59.89

$52.07

$47.07

$47.06

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 20

M85049/2920N08A
Amphenol PCD
1: $67.42
29In Stock

Mfr. Part No.
M85049/2920N08A

Mouser Part No
523-85049/2920N08A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 20

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Datasheet

29In Stock

$67.42

$58.62

$56.28

$55.16

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 22

M85049/2922N09
Amphenol PCD
1: $71.10
5In Stock

Mfr. Part No.
M85049/2922N09

Mouser Part No
523-85049/2922N09

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 22

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Datasheet

5In Stock

$71.10

$61.83

$58.18

$58.17

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 24

M85049/2924N06
Amphenol PCD
1: $66.63
16In Stock

Mfr. Part No.
M85049/2924N06

Mouser Part No
523-85049/2924N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV ST NICKEL SZ 24

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Datasheet

16In Stock

$66.63

$57.92

$54.51

$54.10

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 12

M85049/31-12N
Amphenol PCD
1: $16.84
19In Stock

Mfr. Part No.
M85049/31-12N

Mouser Part No
523-85049/31-12N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 12

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Datasheet

19In Stock

$16.84

$15.27

$14.69

$13.98

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-14N
Amphenol PCD
1: $16.54
33In Stock

Mfr. Part No.
M85049/31-14N

Mouser Part No
523-85049/31-14N

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

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Datasheet

33In Stock

$16.54

$15.25

$14.59

$13.41

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-18N
Amphenol PCD
1: $15.80
31In Stock
25Expected 28/10/2026

Mfr. Part No.
M85049/31-18N

Mouser Part No
523-85049/31-18N

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

Learn More

Datasheet

31In Stock

25Expected 28/10/2026

$15.80

$14.84

$14.46

$14.20

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST BLACK SZ 22

M85049/31-22A
Amphenol PCD
1: $22.11
4In Stock

Mfr. Part No.
M85049/31-22A

Mouser Part No
523-85049/31-22A

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST BLACK SZ 22

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Datasheet

4In Stock

$22.11

$19.61

$16.27

$15.86

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 24

M85049/31-24N
Amphenol PCD
1: $21.92
1In Stock

Mfr. Part No.
M85049/31-24N

Mouser Part No
523-85049/31-24N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 24

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Datasheet

1In Stock

$21.92

$20.33

$16.84

$15.38

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 32

M85049/31-32N
Amphenol PCD
1: $34.61
20In Stock

Mfr. Part No.
M85049/31-32N

Mouser Part No
523-85049/31-32N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 32

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Datasheet

20In Stock

$34.61

$29.42

$27.01

$25.16

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 08

M85049/31-8N
Amphenol PCD
1: $17.65
5In Stock
25Expected 18/9/2026

Mfr. Part No.
M85049/31-8N

Mouser Part No
523-85049/31-8N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 08

Learn More

Datasheet

5In Stock

25Expected 18/9/2026

$17.65

$15.00

$14.05

$11.95

View

Min.: 1
Mult.: 1

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