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Self Locking Circular MIL Spec Connectors

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Types of Circular MIL Spec 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: S/293.65
53In Stock

Mfr. Part #
M85049/88-25ZP02

Mouser Part #
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

S/293.65

S/261.03

S/260.25

S/239.78

View

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: S/261.89
29In Stock

Mfr. Part #
M85049/88-21ZP02

Mouser Part #
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

S/261.89

S/227.13

S/226.43

S/221.95

View

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

M85049/85-18ZP02
Amphenol PCD
1: S/244.60
31In Stock

Mfr. Part #
M85049/85-18ZP02

Mouser Part #
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

S/244.60

S/212.14

S/211.52

S/207.31

View

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 3

M85049/88-25ZP03
Amphenol PCD
1: S/293.57
25In Stock

Mfr. Part #
M85049/88-25ZP03

Mouser Part #
523-M85049/88-25ZP03

Amphenol PCD

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

Learn More

Datasheet

25In Stock

S/293.57

S/260.95

S/255.11

S/248.38

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/82-10ZP03
Amphenol PCD
1: S/220.59
34In Stock

Mfr. Part #
M85049/82-10ZP03

Mouser Part #
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

S/220.59

S/191.32

S/180.30

S/173.53

View

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 Size 1

M85049/85-12ZP01
Amphenol PCD
1: S/218.33
40In Stock

Mfr. Part #
M85049/85-12ZP01

Mouser Part #
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

S/218.33

S/189.33

S/185.05

S/185.01

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

TXR40AB00-1814AI
TE Connectivity / Raychem
1: S/573.01
152In Stock

Mfr. Part #
TXR40AB00-1814AI

Mouser Part #
650-TXR40AB00-1814AI

TE Connectivity / Raychem

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

Datasheet

152In Stock

S/573.01

S/521.01

S/481.31

S/457.45

View

Min.: 1
Mult.: 1

Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/85-12ZP02
Amphenol PCD
1: S/218.33
15In Stock

Mfr. Part #
M85049/85-12ZP02

Mouser Part #
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

S/218.33

S/189.33

S/173.57

Quote

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/82-12ZP02
Amphenol PCD
1: S/228.45
15In Stock

Mfr. Part #
M85049/82-12ZP02

Mouser Part #
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

S/228.45

S/198.13

S/193.61

S/188.98

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Straight

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

M85049/85-16ZP01
Amphenol PCD
1: S/235.46
14In Stock

Mfr. Part #
M85049/85-16ZP01

Mouser Part #
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

S/235.46

S/204.16

S/199.61

S/186.88

View

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: S/244.45
11In Stock

Mfr. Part #
M85049/82-16ZP02

Mouser Part #
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

S/244.45

S/211.99

S/207.20

S/201.63

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Straight

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

M85049/85-24ZP01
Amphenol PCD
1: S/289.10
5In Stock

Mfr. Part #
M85049/85-24ZP01

Mouser Part #
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

S/289.10

S/256.98

S/251.14

S/245.31

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/82-12ZP03
Amphenol PCD
1: S/228.45
9In Stock

Mfr. Part #
M85049/82-12ZP03

Mouser Part #
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

S/228.45

S/198.13

S/193.61

S/188.98

View

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: S/209.65
28In Stock

Mfr. Part #
M85049/85-08ZP02

Mouser Part #
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

28In Stock

S/209.65

S/182.29

S/175.01

S/171.54

View

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: S/289.10
4In Stock

Mfr. Part #
M85049/85-24ZP02

Mouser Part #
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

S/289.10

S/256.98

S/229.54

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

M85049/89-23W03
Amphenol PCD
1: S/287.38
574In Stock

Mfr. Part #
M85049/89-23W03

Mouser Part #
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

S/287.38

S/260.37

S/249.86

S/242.50

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

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

M85049/85-20ZP02
Amphenol PCD
1: S/254.06
4In Stock

Mfr. Part #
M85049/85-20ZP02

Mouser Part #
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

S/254.06

S/220.32

S/215.29

S/202.33

View

Min.: 1
Mult.: 1

Band Lock Adapters

MIL-DTL-38999 III, IV

Straight

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

D38999/26ZE35SA
Amphenol Aerospace
1: S/621.83
15In Stock

Mfr. Part #
D38999/26ZE35SA

Mouser Part #
654-D38999/26ZE35SA

Amphenol Aerospace

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

Datasheet

15In Stock

S/621.83

S/579.67

S/509.22

Min.: 1
Mult.: 1

Plugs

MIL-DTL-38999 III

Straight

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

D38999/26WG75PN
Amphenol Aerospace
1: S/2,910.58
28In Stock
92Expected 10/16/2026

Mfr. Part #
D38999/26WG75PN

Mouser Part #
654-D38999/26WG75PN

Amphenol Aerospace

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

Learn More

Datasheet

28In Stock

92Expected 10/16/2026

S/2,910.58

S/2,177.54

Quote

Min.: 1
Mult.: 1

Plugs

MIL-DTL-38999 III

Straight

Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT

D38999/24FE35PN
Amphenol Aerospace
1: S/496.68
368In Stock

Mfr. Part #
D38999/24FE35PN

Mouser Part #
654-D38999/24FE35PN

Amphenol Aerospace

Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT

Learn More

Datasheet

368In Stock

S/496.68

S/482.05

S/416.34

S/355.35

Quote

Min.: 1
Mult.: 1

Receptacles

MIL-DTL-38999 III

Jam Nut

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

D38999/26FJ19SN
Amphenol Aerospace
1: S/1,470.28
89In Stock
9Expected 10/19/2026

Mfr. Part #
D38999/26FJ19SN

Mouser Part #
654-D38999/26FJ19SN

Amphenol Aerospace

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

Learn More

Datasheet

89In Stock

9Expected 10/19/2026

S/1,470.28

S/1,214.42

S/1,064.01

View

Min.: 1
Mult.: 1

Plugs

MIL-DTL-38999 III

Straight

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

M85049/82-18ZP02
Amphenol PCD
1: S/253.05
11In Stock

Mfr. Part #
M85049/82-18ZP02

Mouser Part #
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

S/253.05

S/219.46

S/214.48

S/208.72

View

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 3

M85049/82-18ZP03
Amphenol PCD
1: S/253.05
24In Stock

Mfr. Part #
M85049/82-18ZP03

Mouser Part #
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

24In Stock

S/253.05

S/219.46

S/204.82

S/198.67

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Straight

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

M85049/82-22ZP03
Amphenol PCD
1: S/280.77
14In Stock

Mfr. Part #
M85049/82-22ZP03

Mouser Part #
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

14In Stock

S/280.77

S/243.48

S/237.95

S/230.94

View

Min.: 1
Mult.: 1

Band Lock Adapters

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

Straight

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

M85049/88-19ZP02
Amphenol PCD
1: S/253.05
15In Stock

Mfr. Part #
M85049/88-19ZP02

Mouser Part #
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

15In Stock

S/253.05

S/219.46

S/198.67

Quote

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
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6
7
7, 12, 12S
8
8, 8S
8, 9
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10, 10S, 10SL
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