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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 89 Backshell Band Lock

M85049/89-19N03
Amphenol PCD
1: $91.35
11In Stock

Mfr. Part No.
M85049/89-19N03

Mouser Part No
523-85049/89-19N03

Circular MIL Spec Backshells 89 Backshell Band Lock

Datasheet

11In Stock

$91.35

$79.85

$74.84

$71.29

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-10N
Amphenol PCD
1: $46.59
41In Stock

Mfr. Part No.
M85049/9-10N

Mouser Part No
523-85049/9-10N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

41In Stock

$46.59

$41.82

$39.22

$38.76

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-16N
Amphenol PCD
1: $61.30
20In Stock

Mfr. Part No.
M85049/9-16N

Mouser Part No
523-85049/9-16N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

20In Stock

$61.30

$53.30

$50.16

$49.79

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Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-17N
Amphenol PCD
1: $63.89
13In Stock

Mfr. Part No.
M85049/9-17N

Mouser Part No
523-85049/9-17N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

13In Stock

$63.89

$54.32

$54.30

$53.16

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-22N
Amphenol PCD
1: $90.41
19In Stock

Mfr. Part No.
M85049/9-22N

Mouser Part No
523-85049/9-22N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

19In Stock

$90.41

$78.40

$76.62

$69.69

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-4N
Amphenol PCD
1: $52.60
23In Stock

Mfr. Part No.
M85049/9-4N

Mouser Part No
523-85049/9-4N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

23In Stock

$52.60

$45.74

$43.03

$41.62

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-5N
Amphenol PCD
1: $52.59
28In Stock

Mfr. Part No.
M85049/9-5N

Mouser Part No
523-85049/9-5N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

28In Stock

$52.59

$45.72

$43.91

$43.03

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-6N
Amphenol PCD
1: $54.16
5In Stock

Mfr. Part No.
M85049/9-6N

Mouser Part No
523-85049/9-6N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

5In Stock

$54.16

$45.23

$42.94

$42.54

Quote

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

M85049/9-74N
Amphenol PCD
1: $55.83
5In Stock

Mfr. Part No.
M85049/9-74N

Mouser Part No
523-85049/9-74N

Circular MIL Spec Backshells BACKSHELL ENV R/A NICKEL

Datasheet

5In Stock

$55.83

$48.54

$44.15

Min.: 1
Mult.: 1

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

M85049/90-15N02
Amphenol PCD
1: $100.29
6In Stock

Mfr. Part No.
M85049/90-15N02

Mouser Part No
523-85049/90-15N02

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

Datasheet

6In Stock

$100.29

$85.87

$80.50

$76.68

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Backshell Band Lock

M85049/90-19N02
Amphenol PCD
1: $101.31
17In Stock

Mfr. Part No.
M85049/90-19N02

Mouser Part No
523-85049/90-19N02

Circular MIL Spec Backshells 90 Backshell Band Lock

Datasheet

17In Stock

$101.31

$89.86

$85.90

$81.91

$78.01

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 21

M85049/90-21N02
Amphenol PCD
1: $107.22
1In Stock
25Expected 27/8/2026

Mfr. Part No.
M85049/90-21N02

Mouser Part No
523-85049/90-21N02

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 21

Datasheet

1In Stock

25Expected 27/8/2026

$107.22

$94.04

$92.36

$88.78

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 90 Backshell Band Lock

M85049/90-25N02
Amphenol PCD
1: $124.97
10In Stock

Mfr. Part No.
M85049/90-25N02

Mouser Part No
523-85049/90-25N02

Circular MIL Spec Backshells 90 Backshell Band Lock

Datasheet

10In Stock

$124.97

$108.50

$101.70

$96.85

$92.24

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 124 Backshell Strain Relief Clamp

M85049/124S09N
Amphenol PCD
1: $57.79
22In Stock
400On Order

Mfr. Part No.
M85049/124S09N

Mouser Part No
523-85049124S09N

Circular MIL Spec Backshells 124 Backshell Strain Relief Clamp

Datasheet

22In Stock

400On Order

$57.79

$52.67

$48.81

$48.36

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ13

M85049/124S13N
Amphenol PCD
1: $65.84
29In Stock
50Expected 2/11/2026

Mfr. Part No.
M85049/124S13N

Mouser Part No
523-85049124S13N

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ13

Datasheet

29In Stock

50Expected 2/11/2026

$65.84

$60.25

$51.20

$50.39

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ17

M85049/124S17N
Amphenol PCD
1: $67.06
9In Stock
100On Order

Mfr. Part No.
M85049/124S17N

Mouser Part No
523-85049124S17N

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ17

Datasheet

9In Stock

100On Order

$67.06

$61.49

$56.92

$51.61

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ21

M85049/124S21N
Amphenol PCD
1: $73.62
14In Stock

Mfr. Part No.
M85049/124S21N

Mouser Part No
523-85049124S21N

Circular MIL Spec Backshells BShell SRStrt SL Ni SZ21

Datasheet

14In Stock

$73.62

$66.83

$60.62

$59.02

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BShell SR 90deg SL Ni SZ09

M85049/126S09N
Amphenol PCD
1: $80.06
23In Stock

Mfr. Part No.
M85049/126S09N

Mouser Part No
523-85049126S09N

Circular MIL Spec Backshells BShell SR 90deg SL Ni SZ09

23In Stock

$80.06

$73.56

$72.83

$72.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 128 Backshell Band

A850491282
Amphenol PCD
1: $20.25
23In Stock

Mfr. Part No.
A850491282

Mouser Part No
523-A850491282

Circular MIL Spec Backshells 128 Backshell Band

23In Stock

$20.25

$19.84

$10.98

$10.30

$9.81

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 128 Backshell Band

A850491288
Amphenol PCD
1: $22.86
24In Stock

Mfr. Part No.
A850491288

Mouser Part No
523-A850491288

Circular MIL Spec Backshells 128 Backshell Band

Datasheet

24In Stock

$22.86

$21.00

$20.98

$18.32

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL

A8504947W10
Amphenol PCD
1: $22.85
25In Stock

Mfr. Part No.
A8504947W10

Mouser Part No
523-A8504947W10

Circular MIL Spec Backshells BACKSHELL

Datasheet

25In Stock

$22.85

$22.24

$21.18

$17.42

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells BACKSHELL

A850498813Z03
Amphenol PCD
1: $79.97
7In Stock
50Expected 10/9/2026

Mfr. Part No.
A850498813Z03

Mouser Part No
523-A850498813Z03

Circular MIL Spec Backshells BACKSHELL

Datasheet

7In Stock

50Expected 10/9/2026

$79.97

$66.04

$62.45

$59.47

View

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 95 Backshell Mounting flange

A850499512A
Amphenol PCD
1: $24.71
24In Stock

Mfr. Part No.
A850499512A

Mouser Part No
523-A850499512A

Circular MIL Spec Backshells 95 Backshell Mounting flange

Datasheet

24In Stock

$24.71

$21.15

$17.84

$16.81

$15.94

Min.: 1
Mult.: 1

Circular MIL Spec Backshells M85049/95-14A

A850499514A
Amphenol PCD
1: $25.64
3In Stock
50Expected 5/11/2026

Mfr. Part No.
A850499514A

Mouser Part No
523-A850499514A

Circular MIL Spec Backshells M85049/95-14A

Datasheet

3In Stock

50Expected 5/11/2026

$25.64

$21.98

$18.51

$17.52

$16.54

Min.: 1
Mult.: 1

Circular MIL Spec Backshells 95 Backshell Mounting flange

A850499516A
Amphenol PCD
1: $27.27
19In Stock

Mfr. Part No.
A850499516A

Mouser Part No
523-A850499516A

Circular MIL Spec Backshells 95 Backshell Mounting flange

Datasheet

19In Stock

$27.27

$25.60

$25.15

$25.01

View

Min.: 1
Mult.: 1