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 NON ENV ST NICKEL SZ 20

M85049/2920N08A
Amphenol PCD
1: $64.97
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

$64.97

$59.16

$50.28

$48.71

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-10N
Amphenol PCD
1: $19.61
12In Stock

Mfr. Part No.
M85049/31-10N

Mouser Part No
523-85049/31-10N

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

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Datasheet

12In Stock

$19.61

$18.46

$15.67

$15.15

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 12

M85049/31-12N
Amphenol PCD
1: $20.02
11In 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

11In Stock

$20.02

$17.78

$17.08

$15.89

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-14N
Amphenol PCD
1: $16.19
78In 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

78In Stock

$16.19

$14.82

$14.25

$13.11

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 16

M85049/31-16N
Amphenol PCD
1: $20.84
17In Stock

Mfr. Part No.
M85049/31-16N

Mouser Part No
523-85049/31-16N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 16

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Datasheet

17In Stock

$20.84

$18.47

$17.76

$16.89

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 31 Backshell Grommet Nut

M85049/31-18N
Amphenol PCD
1: $13.52
17In Stock
25Expected 28/5/2026

Mfr. Part No.
M85049/31-18N

Mouser Part No
523-85049/31-18N

Amphenol PCD

Circular MIL Spec Backshells 31 Backshell Grommet Nut

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Datasheet

17In Stock

25Expected 28/5/2026

$13.52

$13.16

$12.40

$11.66

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 20

M85049/31-20N
Amphenol PCD
1: $19.35
26In Stock

Mfr. Part No.
M85049/31-20N

Mouser Part No
523-85049/31-20N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 20

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Datasheet

26In Stock

$19.35

$18.83

$16.00

$15.46

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST BLACK SZ 22

M85049/31-22A
Amphenol PCD
1: $21.59
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

$21.59

$18.71

$16.62

$16.49

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 22

M85049/31-22N
Amphenol PCD
1: $24.16
10In Stock

Mfr. Part No.
M85049/31-22N

Mouser Part No
523-85049/31-22N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 22

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Datasheet

10In Stock

$24.16

$20.07

$18.50

$16.51

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 24

M85049/31-24N
Amphenol PCD
1: $22.41
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

$22.41

$19.49

$19.47

$19.15

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST NIC SZ 32

M85049/31-32N
Amphenol PCD
1: $34.35
22In 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

22In Stock

$34.35

$31.19

$31.18

$29.09

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 16

M85049/31S16N
Amphenol PCD
1: $29.93
23In Stock

Mfr. Part No.
M85049/31S16N

Mouser Part No
523-85049/31S16N

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL GRMT NUT ST SL NIC SZ 16

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Datasheet

23In Stock

$29.93

$25.44

$23.46

$22.91

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

M85049/3614N04
Amphenol PCD
1: $84.26
11In Stock

Mfr. Part No.
M85049/3614N04

Mouser Part No
523-85049/3614N04

Amphenol PCD

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

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Datasheet

11In Stock

$84.26

$73.07

$70.26

$67.92

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

M85049/3614N05
Amphenol PCD
1: $86.78
11In Stock

Mfr. Part No.
M85049/3614N05

Mouser Part No
523-85049/3614N05

Amphenol PCD

Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI

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Datasheet

11In Stock

$86.78

$80.38

$80.37

$80.20

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

M85049/3616N04
Amphenol PCD
1: $99.09
25In Stock

Mfr. Part No.
M85049/3616N04

Mouser Part No
523-85049/3616N04

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

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Datasheet

25In Stock

$99.09

$88.60

$79.58

$71.89

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

M85049/3616N05
Amphenol PCD
1: $88.74
12In Stock

Mfr. Part No.
M85049/3616N05

Mouser Part No
523-85049/3616N05

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

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Datasheet

12In Stock

$88.74

$78.02

$75.02

$72.52

$68.51

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

M85049/3616N06
Amphenol PCD
1: $104.40
20In Stock

Mfr. Part No.
M85049/3616N06

Mouser Part No
523-85049/3616N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 16

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Datasheet

20In Stock

$104.40

$94.06

$77.31

$71.65

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 22

M85049/3622N06
Amphenol PCD
1: $98.51
5In Stock

Mfr. Part No.
M85049/3622N06

Mouser Part No
523-85049/3622N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 22

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Datasheet

5In Stock

$98.51

$83.73

$78.48

$74.74

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Min.: 1
Mult.: 1

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

M85049/6-12N
Amphenol PCD
1: $78.88
12In Stock

Mfr. Part No.
M85049/6-12N

Mouser Part No
523-85049/6-12N

Amphenol PCD

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

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Datasheet

12In Stock

$78.88

$68.42

$65.77

$63.58

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Min.: 1
Mult.: 1

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

M85049/6-17N
Amphenol PCD
1: $89.15
19In Stock

Mfr. Part No.
M85049/6-17N

Mouser Part No
523-85049/6-17N

Amphenol PCD

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

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Datasheet

19In Stock

$89.15

$78.40

$75.38

$72.86

$68.83

Min.: 1
Mult.: 1

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

M85049/78-09N02
Amphenol PCD
1: $102.47
5In Stock
25Expected 16/3/2026

Mfr. Part No.
M85049/78-09N02

Mouser Part No
523-85049/78-09N02

Amphenol PCD

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

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Datasheet

5In Stock

25Expected 16/3/2026

$102.47

$83.53

$77.17

$70.86

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 19

M85049/78-19N03
Amphenol PCD
1: $109.49
3In Stock
5Expected 26/3/2026

Mfr. Part No.
M85049/78-19N03

Mouser Part No
523-85049/78-19N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 19

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Datasheet

3In Stock

5Expected 26/3/2026

$109.49

$95.22

$86.50

$81.51

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

M85049/78-21N06
Amphenol PCD
1: $118.73
16In Stock

Mfr. Part No.
M85049/78-21N06

Mouser Part No
523-85049/78-21N06

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

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Datasheet

16In Stock

$118.73

$106.79

$102.69

$99.26

$93.78

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

M85049/78-21N07
Amphenol PCD
1: $116.32
5In Stock

Mfr. Part No.
M85049/78-21N07

Mouser Part No
523-85049/78-21N07

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

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Datasheet

5In Stock

$116.32

$101.96

$94.90

$91.30

$86.94

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

M85049/78-21N08
Amphenol PCD
1: $107.49
11In Stock

Mfr. Part No.
M85049/78-21N08

Mouser Part No
523-85049/78-21N08

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 21

Learn More

Datasheet

11In Stock

$107.49

$104.14

$97.61

$92.95

$88.53

Min.: 1
Mult.: 1

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