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Self Locking Circular Connectors

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Types of Circular Connectors

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Mating Style = Self Locking

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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: $75.46
53In Stock

Mfr. Part No.
M85049/88-25ZP02

Mouser Part No
523-M85049/88-25ZP02

Amphenol PCD

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

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Datasheet

53In Stock

$75.46

$67.07

$66.87

$61.62

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/88-21ZP02
Amphenol PCD
1: $67.29
29In Stock

Mfr. Part No.
M85049/88-21ZP02

Mouser Part No
523-M85049/88-21ZP02

Amphenol PCD

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

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Datasheet

29In Stock

$67.29

$58.36

$58.18

$57.03

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-18ZP02
Amphenol PCD
1: $62.85
31In Stock

Mfr. Part No.
M85049/85-18ZP02

Mouser Part No
523-M85049/85-18ZP02

Amphenol PCD

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

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Datasheet

31In Stock

$62.85

$54.51

$54.35

$53.27

View

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-25ZP03
Amphenol PCD
1: $75.43
25In Stock

Mfr. Part No.
M85049/88-25ZP03

Mouser Part No
523-M85049/88-25ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 3

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Datasheet

25In Stock

$75.43

$67.05

$65.55

$63.83

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/82-10ZP03
Amphenol PCD
1: $56.68
34In Stock

Mfr. Part No.
M85049/82-10ZP03

Mouser Part No
523-M85049/82-10ZP03

Amphenol PCD

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

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Datasheet

34In Stock

$56.68

$49.16

$46.33

$44.59

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-12ZP01
Amphenol PCD
1: $56.10
40In Stock

Mfr. Part No.
M85049/85-12ZP01

Mouser Part No
523-M85049/85-12ZP01

Amphenol PCD

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

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Datasheet

40In Stock

$56.10

$48.65

$47.54

$42.73

$41.50

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Strain Reliefs & Adapters ADPTR RING SZ18 CAD STR TINEL-LOCK

TXR40AB00-1814AI
TE Connectivity / Raychem
1: $148.13
152In Stock

Mfr. Part No.
TXR40AB00-1814AI

Mouser Part No
650-TXR40AB00-1814AI

TE Connectivity / Raychem

Circular MIL Spec Strain Reliefs & Adapters ADPTR RING SZ18 CAD STR TINEL-LOCK

Datasheet

152In Stock

$148.13

$145.94

Min.: 1
Mult.: 1

Adapters

Circular MIL Spec Connector 19P PLG SZ 25 SKT CBL MNT

D38999/26FJ19SN
Amphenol Aerospace
1: $435.83
89In Stock
9Expected 2026/10/19

Mfr. Part No.
D38999/26FJ19SN

Mouser Part No
654-D38999/26FJ19SN

Amphenol Aerospace

Circular MIL Spec Connector 19P PLG SZ 25 SKT CBL MNT

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Datasheet

89In Stock

9Expected 2026/10/19

$435.83

$350.54

$297.80

$262.81

View

Min.: 1
Mult.: 1

Plugs

Socket (Female)

Crimp

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

M85049/82-16ZP02
Amphenol PCD
1: $62.81
11In Stock

Mfr. Part No.
M85049/82-16ZP02

Mouser Part No
523-M85049/82-16ZP02

Amphenol PCD

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

Learn More

Datasheet

11In Stock

$62.81

$54.47

$53.24

$51.81

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-24ZP01
Amphenol PCD
1: $74.28
5In Stock

Mfr. Part No.
M85049/85-24ZP01

Mouser Part No
523-M85049/85-24ZP01

Amphenol PCD

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

Learn More

Datasheet

5In Stock

$74.28

$66.04

$64.53

$63.03

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/82-12ZP02
Amphenol PCD
1: $58.70
15In Stock

Mfr. Part No.
M85049/82-12ZP02

Mouser Part No
523-M85049/82-12ZP02

Amphenol PCD

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

Learn More

Datasheet

15In Stock

$58.70

$50.90

$49.75

$48.56

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-16ZP01
Amphenol PCD
1: $60.50
14In Stock

Mfr. Part No.
M85049/85-16ZP01

Mouser Part No
523-M85049/85-16ZP01

Amphenol PCD

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

Learn More

Datasheet

14In Stock

$60.50

$52.46

$51.29

$48.02

View

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23

M85049/89-23W03
Amphenol PCD
1: $74.64
574In Stock

Mfr. Part No.
M85049/89-23W03

Mouser Part No
523-85049/89-23W03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23

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Datasheet

574In Stock

$74.64

$66.91

$64.47

$62.80

$58.62

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/82-12ZP03
Amphenol PCD
1: $58.70
9In Stock

Mfr. Part No.
M85049/82-12ZP03

Mouser Part No
523-M85049/82-12ZP03

Amphenol PCD

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

Learn More

Datasheet

9In Stock

$58.70

$50.90

$49.75

$48.56

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-08ZP02
Amphenol PCD
1: $53.87
28In Stock

Mfr. Part No.
M85049/85-08ZP02

Mouser Part No
523-M85049/85-08ZP02

Amphenol PCD

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

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Datasheet

28In Stock

$53.87

$46.83

$44.97

$44.08

View

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Connector TV 55C 55#22D SKT PLUG ZNI

D38999/26ZE35SA
Amphenol Aerospace
1: $159.78
15In Stock

Mfr. Part No.
D38999/26ZE35SA

Mouser Part No
654-D38999/26ZE35SA

Amphenol Aerospace

Circular MIL Spec Connector TV 55C 55#22D SKT PLUG ZNI

Datasheet

15In Stock

$159.78

$148.95

$141.75

Min.: 1
Mult.: 1

Plugs

Socket (Female)

Crimp

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

M85049/85-24ZP02
Amphenol PCD
1: $74.28
4In Stock

Mfr. Part No.
M85049/85-24ZP02

Mouser Part No
523-M85049/85-24ZP02

Amphenol PCD

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

Learn More

Datasheet

4In Stock

$74.28

$66.04

$58.98

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Connector 4P PLG SZ 21 PIN CBL MNT

D38999/26WG75PN
Amphenol Aerospace
1: $865.17
28In Stock
92Expected 2026/10/16

Mfr. Part No.
D38999/26WG75PN

Mouser Part No
654-D38999/26WG75PN

Amphenol Aerospace

Circular MIL Spec Connector 4P PLG SZ 21 PIN CBL MNT

Learn More

Datasheet

28In Stock

92Expected 2026/10/16

$865.17

$641.30

Quote

Min.: 1
Mult.: 1

Plugs

Pin (Male)

Crimp

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

M85049/82-18ZP02
Amphenol PCD
1: $65.02
11In Stock

Mfr. Part No.
M85049/82-18ZP02

Mouser Part No
523-M85049/82-18ZP02

Amphenol PCD

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

Learn More

Datasheet

11In Stock

$65.02

$56.39

$55.11

$53.63

View

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-22ZP03
Amphenol PCD
1: $72.14
15In Stock

Mfr. Part No.
M85049/82-22ZP03

Mouser Part No
523-M85049/82-22ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3

Learn More

Datasheet

15In Stock

$72.14

$62.56

$61.14

$59.34

$53.35

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/88-19ZP02
Amphenol PCD
1: $65.02
16In Stock

Mfr. Part No.
M85049/88-19ZP02

Mouser Part No
523-M85049/88-19ZP02

Amphenol PCD

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

Learn More

Datasheet

16In Stock

$65.02

$56.39

$51.04

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/85-12ZP02
Amphenol PCD
1: $56.10
15In Stock

Mfr. Part No.
M85049/85-12ZP02

Mouser Part No
523-M85049/85-12ZP02

Amphenol PCD

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

Learn More

Datasheet

15In Stock

$56.10

$48.65

$44.60

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/85-20ZP02
Amphenol PCD
1: $65.28
4In Stock

Mfr. Part No.
M85049/85-20ZP02

Mouser Part No
523-M85049/85-20ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 20 Black Zinc Nickel w/ Exposed Nickel Entry 2

Learn More

Datasheet

4In Stock

$65.28

$56.61

$55.32

$51.99

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

M85049/87-10ZP03
Amphenol PCD
1: $85.17
23In Stock

Mfr. Part No.
M85049/87-10ZP03

Mouser Part No
523-M85049/87-10ZP03

Amphenol PCD

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

Learn More

Datasheet

23In Stock

$85.17

$75.70

$73.99

$73.98

View

Min.: 1
Mult.: 1

Band Lock Adapters

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-21ZP03
Amphenol PCD
1: $67.29
16In Stock

Mfr. Part No.
M85049/88-21ZP03

Mouser Part No
523-M85049/88-21ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 3

Learn More

Datasheet

16In Stock

$67.29

$58.36

$54.78

$52.17

$49.68

Min.: 1
Mult.: 1

Band Lock Adapters

Self Locking Circular Connectors

Types of Circular Connectors

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