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Self Locking Circular MIL Spec Connectors

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Types of Circular MIL Spec Connectors

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Part #

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

M85049/82-10ZP03
Amphenol PCD
1: $57.73
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

Learn More

Datasheet

34In Stock

$57.73

$49.56

$46.83

$44.60

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/88-17ZP02
Amphenol PCD
1: $63.70
32In Stock

Mfr. Part No.
M85049/88-17ZP02

Mouser Part No
523-M85049/88-17ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 17 Black Zinc Nickel w/ Exposed Nickel Entry 2

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Datasheet

32In Stock

$63.70

$54.68

$50.85

$48.99

$46.66

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Connector 26P Sz 17 Wall Mount Recpt Durmalon Pin

D38999/20WE26PN
Amphenol Aerospace
1: $238.32
80In Stock

Mfr. Part No.
D38999/20WE26PN

Mouser Part No
654-D38999/20WE26PN

Amphenol Aerospace

Circular MIL Spec Connector 26P Sz 17 Wall Mount Recpt Durmalon Pin

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Datasheet

80In Stock

$238.32

Min.: 1
Mult.: 1

Receptacles

MIL-DTL-38999 III

Wall Mount

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

M85049/82-12ZP03
Amphenol PCD
1: $66.91
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

$66.91

$58.25

$46.49

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

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

M85049/85-08ZP02
Amphenol PCD
1: $59.29
8In Stock
25Expected 2026/07/15

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

Learn More

Datasheet

8In Stock

25Expected 2026/07/15

$59.29

$52.13

$41.61

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/88-21ZP02
Amphenol PCD
1: $76.70
7In Stock
25Expected 2026/08/11

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

Learn More

Datasheet

7In Stock

25Expected 2026/08/11

$76.70

$66.42

$52.68

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/85-16ZP01
Amphenol PCD
1: $68.98
15In 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

15In Stock

$68.98

$47.80

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/88-25ZP02
Amphenol PCD
1: $88.17
3In Stock
50On Order

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

Learn More

Datasheet

3In Stock

50On Order

$88.17

$76.41

$59.82

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/85-16ZP02
Amphenol PCD
1: $68.98
13In Stock
25Expected 2026/05/22

Mfr. Part No.
M85049/85-16ZP02

Mouser Part No
523-M85049/85-16ZP02

Amphenol PCD

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

Learn More

Datasheet

13In Stock

25Expected 2026/05/22

$68.98

$47.80

$47.47

$47.21

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/85-20ZP02
Amphenol PCD
1: $74.41
8In 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

8In Stock

$74.41

$64.42

$51.23

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/82-18ZP02
Amphenol PCD
1: $74.12
15In 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

15In Stock

$74.12

$51.04

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

M85049/85-10ZP02
Amphenol PCD
1: $61.57
6In Stock

Mfr. Part No.
M85049/85-10ZP02

Mouser Part No
523-M85049/85-10ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 10 Black Zinc Nickel w/ Exposed Nickel Entry Size 2

Learn More

Datasheet

6In Stock

$61.57

$54.15

$43.08

$42.95

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/88-19ZP02
Amphenol PCD
1: $74.12
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

$74.12

$51.04

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/82-16ZP02
Amphenol PCD
1: $71.62
13In 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

13In Stock

$71.62

$49.47

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

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

M85049/85-12ZP02
Amphenol PCD
1: $63.97
17In 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

17In Stock

$63.97

$44.60

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/82-18ZP03
Amphenol PCD
1: $74.12
32In Stock

Mfr. Part No.
M85049/82-18ZP03

Mouser Part No
523-M85049/82-18ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3

Learn More

Datasheet

32In Stock

$74.12

$54.21

$51.04

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

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

M85049/85-18ZP02
Amphenol PCD
1: $71.65
39In 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

Learn More

Datasheet

39In Stock

$71.65

$52.40

$49.49

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/88-23ZP03
Amphenol PCD
1: $81.58
16In Stock

Mfr. Part No.
M85049/88-23ZP03

Mouser Part No
523-M85049/88-23ZP03

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 23 Black Zinc Nickel w/ Exposed Nickel Entry 3

Learn More

Datasheet

16In Stock

$81.58

$81.29

$56.14

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

M85049/84-8ZP03
Amphenol PCD
1: $96.01
25In Stock

Mfr. Part No.
M85049/84-8ZP03

Mouser Part No
523-M85049/84-8ZP03

Amphenol PCD

Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3

Learn More

Datasheet

25In Stock

$96.01

$70.22

$64.69

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

90 Deg

Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 1

M85049/85-14ZP01
Amphenol PCD
1: $66.42
47In Stock

Mfr. Part No.
M85049/85-14ZP01

Mouser Part No
523-M85049/85-14ZP01

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 1

Learn More

Datasheet

47In Stock

$66.42

$48.57

$46.17

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/85-24ZP02
Amphenol PCD
1: $86.81
18In 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

18In Stock

$86.81

$58.98

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

M85049/82-28ZP02
Amphenol PCD
1: $94.09
23In Stock

Mfr. Part No.
M85049/82-28ZP02

Mouser Part No
523-M85049/82-28ZP02

Amphenol PCD

Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2

Learn More

Datasheet

23In Stock

$94.09

$63.49

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Straight

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

M85049/82-20N03
Amphenol PCD
1: $51.37
52In Stock

Mfr. Part No.
M85049/82-20N03

Mouser Part No
523-85049/82-20N03

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 20

Learn More

Datasheet

52In Stock

$51.37

$39.61

$39.60

$39.59

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-5015, MIL-DTL-26482 II

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

M85049/89-15N02
Amphenol PCD
1: $64.85
35In Stock

Mfr. Part No.
M85049/89-15N02

Mouser Part No
523-85049/89-15N02

Amphenol PCD

Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15

Learn More

Datasheet

35In Stock

$64.85

$59.34

$52.04

$50.04

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

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

M85049/85-24ZP01
Amphenol PCD
1: $86.81
15In 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

15In Stock

$86.81

$58.98

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

Self Locking Circular MIL Spec Connectors

Types of Circular MIL Spec Connectors

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3
5
6
7
7, 12, 12S
8
8, 8S
8, 9
9
10
10, 10S, 10SL
10, 11
11
12
12, 12S, 7
12, 13
12, 14, 14S
13
14
14, 14S