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MIL-DTL-38999 Series II Circular Connectors

Amphenol Aerospace MIL-DTL-38999 Series II consists of subminiature circular connectors designed to offer high reliability and high contact density with maximum weight and space savings. Amphenol MIL-DTL-38999 Series II Circular Connectors feature a lightweight, space-saving design, 3-point bayonet lock system, and error-proof alternate positioning. Amphenol Aerospace MIL-DTL-38999 Series II Circular Connectors are ideally suited for industrial applications, military and commercial air, military vehicles, missiles and ordnance, and C4ISR.

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Part #

Circular MIL Spec Connector 37P SZ 14 PIN WALL MNT

MS27497T14B35PA
Amphenol Aerospace
1: $94.88
94Expected 7/9/2026

Mfr. Part No.
MS27497T14B35PA

Mouser Part No
654-MS27497T14B35PA

Amphenol Aerospace

Circular MIL Spec Connector 37P SZ 14 PIN WALL MNT

Datasheet

94Expected 7/9/2026

$94.88

$86.49

$85.42

$84.46

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector BOX MOUNT RECEP

MS27508E10B35P
Amphenol Aerospace
1: $238.50
100Expected 14/7/2026

Mfr. Part No.
MS27508E10B35P

Mouser Part No
654-MS27508E10B35P

Amphenol Aerospace

Circular MIL Spec Connector BOX MOUNT RECEP

Datasheet

100Expected 14/7/2026

$238.50

$216.85

$147.70

$136.64

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT

MS27508E12B35S
Amphenol Aerospace
1: $112.62
99Expected 11/8/2026

Mfr. Part No.
MS27508E12B35S

Mouser Part No
654-MS27508E12B35S

Amphenol Aerospace

Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT

Datasheet

99Expected 11/8/2026

$112.62

$95.72

$89.72

$85.46

$81.38

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE PIN

MS27508E12F35A
Amphenol Aerospace
1: $175.35
67Expected 10/7/2026

Mfr. Part No.
MS27508E12F35A

Mouser Part No
654-MS27508E12F35A

Amphenol Aerospace

Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE PIN

Datasheet

67Expected 10/7/2026

$175.35

$156.63

$136.57

$114.34

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

MS27484T10F35S
Amphenol Aerospace
1: $116.05
1Expected 21/12/2026

Mfr. Part No.
MS27484T10F35S

Mouser Part No
654-MS27484T10F35S

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

Datasheet

1Expected 21/12/2026

$116.05

$105.21

$100.39

$98.18

$86.62

Min.: 1
Mult.: 1

Circular MIL Spec Connector 53P 18 SIZE STRAIGHT PLUG SKT

MS27473T18A53S
Amphenol Aerospace
1: $323.62
16Expected 21/9/2026

Mfr. Part No.
MS27473T18A53S

Mouser Part No
654-27473T18A53S

Amphenol Aerospace

Circular MIL Spec Connector 53P 18 SIZE STRAIGHT PLUG SKT

Datasheet

16Expected 21/9/2026

$323.62

$272.97

$242.29

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 55P SZ 16 FEM WALL MNT PIN

MS27472T16B35P
Amphenol Aerospace
1: $128.42
57Expected 21/7/2026

Mfr. Part No.
MS27472T16B35P

Mouser Part No
654-MS27472T16B35P

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 16 FEM WALL MNT PIN

Datasheet

57Expected 21/7/2026

$128.42

$112.70

$109.39

$107.22

$106.08

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 128P SZ 24 PLUG CBL MNT SKT

MS27473T24B35S
Amphenol Aerospace
1: $235.35
10Expected 29/6/2026

Mfr. Part No.
MS27473T24B35S

Mouser Part No
654-MS27473T24B35S

Amphenol Aerospace

Circular MIL Spec Connector 128P SZ 24 PLUG CBL MNT SKT

Datasheet

10Expected 29/6/2026

$235.35

$191.79

$185.37

$185.36

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG PIN

MS27484T10F35P
Amphenol Aerospace
1: $230.77
98Expected 4/8/2026

Mfr. Part No.
MS27484T10F35P

Mouser Part No
654-MS27484T10F35P

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG PIN

Datasheet

98Expected 4/8/2026

$230.77

$171.54

$118.44

$118.21

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT

MS27497T14B18S
Amphenol Aerospace
1: $93.80
94Expected 23/9/2026

Mfr. Part No.
MS27497T14B18S

Mouser Part No
654-MS27497T14B18S

Amphenol Aerospace

Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT

Datasheet

94Expected 23/9/2026

$93.80

$88.29

$83.43

$76.46

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT

MS27497T18B32S
Amphenol Aerospace
1: $137.65
99Expected 17/8/2026

Mfr. Part No.
MS27497T18B32S

Mouser Part No
654-MS27497T18B32S

Amphenol Aerospace

Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT

Datasheet

99Expected 17/8/2026

$137.65

$116.76

$109.41

$103.47

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 3P SZ 18 PIN

MS27497T18F32P
Amphenol Aerospace
1: $109.78
93On Order

Mfr. Part No.
MS27497T18F32P

Mouser Part No
654-MS27497T18F32P

Amphenol Aerospace

Circular MIL Spec Connector 3P SZ 18 PIN

Datasheet

93On Order

$109.78

$104.21

$103.17

$102.12

Min.: 1
Mult.: 1

Circular MIL Spec Connector 100P FM SZ 22 PIN WALL MNT

MS27497T22B35P
Amphenol Aerospace
1: $167.37
27Expected 18/9/2026

Mfr. Part No.
MS27497T22B35P

Mouser Part No
654-MS27497T22B35P

Amphenol Aerospace

Circular MIL Spec Connector 100P FM SZ 22 PIN WALL MNT

Datasheet

27Expected 18/9/2026

$167.37

$152.62

$146.76

$141.85

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SZ 8 PIN WALL MNT

MS27497T8F35P
Amphenol Aerospace
1: $95.10
100Expected 4/8/2026

Mfr. Part No.
MS27497T8F35P

Mouser Part No
654-MS27497T8F35P

Amphenol Aerospace

Circular MIL Spec Connector 6P SZ 8 PIN WALL MNT

Datasheet

100Expected 4/8/2026

$95.10

$82.47

$69.44

$67.54

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 55P SZ 16 PIN

MS27508E16F35P
Amphenol Aerospace
1: $119.55
100Expected 11/8/2026

Mfr. Part No.
MS27508E16F35P

Mouser Part No
654-MS27508E16F35P

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 16 PIN

Datasheet

100Expected 11/8/2026

$119.55

$108.85

$100.39

$95.62

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 53P SZ 18 SOCKET

MS27508E18A53S
Amphenol Aerospace
1: $170.55
27Expected 11/12/2026

Mfr. Part No.
MS27508E18A53S

Mouser Part No
654-MS27508E18A53S

Amphenol Aerospace

Circular MIL Spec Connector 53P SZ 18 SOCKET

Datasheet

27Expected 11/12/2026

$170.55

$142.77

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector RECPT 3P SZ 8 PIN

MS27508E8B98P
Amphenol Aerospace
1: $113.56
50Expected 10/8/2026

Mfr. Part No.
MS27508E8B98P

Mouser Part No
654-MS27508E8B98P

Amphenol Aerospace

Circular MIL Spec Connector RECPT 3P SZ 8 PIN

Datasheet

50Expected 10/8/2026

$113.56

$104.56

$77.81

$71.25

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector RECPT 3P SZ 14 SOC

MS27472T14A35S
Amphenol Aerospace
1: $131.61
2Expected 10/8/2026

Mfr. Part No.
MS27472T14A35S

Mouser Part No
654-MS27472T14A35S

Amphenol Aerospace

Circular MIL Spec Connector RECPT 3P SZ 14 SOC

Datasheet

2Expected 10/8/2026

$131.61

$120.01

$115.40

$111.53

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 55P SZ 16 RCPT WALL MNT SKT

MS27472T16B35S
Amphenol Aerospace
1: $296.04
1Expected 28/12/2026

Mfr. Part No.
MS27472T16B35S

Mouser Part No
654-MS27472T16B35S

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 16 RCPT WALL MNT SKT

Datasheet

1Expected 28/12/2026

$296.04

$256.52

$197.77

$195.91

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 7P 10 SIZE STRAIGHT PLUG SKT

MS27473E10F99S
Amphenol Aerospace
1: $100.07
14Expected 23/11/2026

Mfr. Part No.
MS27473E10F99S

Mouser Part No
654-MS27473E10F99S

Amphenol Aerospace

Circular MIL Spec Connector 7P 10 SIZE STRAIGHT PLUG SKT

Datasheet

14Expected 23/11/2026

$100.07

$92.75

$80.31

Min.: 1
Mult.: 1

Circular MIL Spec Connector 26P 16 SIZE STRAIGHT PLUG PIN

MS27484T16A26PA
Amphenol Aerospace
1: $432.47
5In Stock

Mfr. Part No.
MS27484T16A26PA

Mouser Part No
654-MS27484T16A26PA

Amphenol Aerospace

Circular MIL Spec Connector 26P 16 SIZE STRAIGHT PLUG PIN

Datasheet

5In Stock

$432.47

$340.15

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 66P SZ 18 PLUG CBL MNT SKT

MS27484T18B35S
Amphenol Aerospace
1: $153.94
1Expected 14/12/2026

Mfr. Part No.
MS27484T18B35S

Mouser Part No
654-MS27484T18B35S

Amphenol Aerospace

Circular MIL Spec Connector 66P SZ 18 PLUG CBL MNT SKT

Datasheet

1Expected 14/12/2026

$153.94

$143.34

$139.88

$133.48

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 39P 20 SIZE STRAIGHT PLUG PIN

MS27484T20F39P
Amphenol Aerospace
1: $526.81
4Expected 29/6/2026

Mfr. Part No.
MS27484T20F39P

Mouser Part No
654-MS27484T20F39P

Amphenol Aerospace

Circular MIL Spec Connector 39P 20 SIZE STRAIGHT PLUG PIN

Datasheet

4Expected 29/6/2026

$526.81

$413.51

Min.: 1
Mult.: 1

Circular MIL Spec Connector 128P SZ 24 CBL MNT SOC

MS27484T24B35S
Amphenol Aerospace
1: $241.46
2On Order

Mfr. Part No.
MS27484T24B35S

Mouser Part No
654-MS27484T24B35S

Amphenol Aerospace

Circular MIL Spec Connector 128P SZ 24 CBL MNT SOC

Datasheet

2On Order

$241.46

$227.35

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 4P Sz 12 Skt Wall Mount Rcpt

MS27497T12B4S
Amphenol Aerospace
1: $80.95
25On Order

Mfr. Part No.
MS27497T12B4S

Mouser Part No
654-MS27497T12B4S

Amphenol Aerospace

Circular MIL Spec Connector 4P Sz 12 Skt Wall Mount Rcpt

Datasheet

25On Order

$80.95

$73.89

$70.60

$68.19

$65.57

Min.: 1
Mult.: 1

No