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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 13P 10 SIZE STRAIGHT PLUG SKT

MS27473E10F35S
Amphenol Aerospace
1: $82.41
98In Stock

Mfr. Part #
MS27473E10F35S

Mouser Part #
654-MS27473E10F35S

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

Datasheet

98In Stock

$82.41

$75.41

$70.80

Min.: 1
Mult.: 1

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

MS27508E12F35A
Amphenol Aerospace
1: $103.54
67In Stock

Mfr. Part #
MS27508E12F35A

Mouser Part #
654-MS27508E12F35A

Amphenol Aerospace

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

Datasheet

67In Stock

$103.54

$82.38

$81.12

$71.02

Min.: 1
Mult.: 1

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

MS27472T16B35P
Amphenol Aerospace
1: $141.71
57In Stock

Mfr. Part #
MS27472T16B35P

Mouser Part #
654-MS27472T16B35P

Amphenol Aerospace

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

Datasheet

57In Stock

$141.71

$129.23

$124.24

$120.10

$113.47

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 8P SIZE 16 STRAIGHT PLUG SOCKET

MS27473T16B8S
Amphenol Aerospace
1: $100.31
57In Stock

Mfr. Part #
MS27473T16B8S

Mouser Part #
654-MS27473T16B8S

Amphenol Aerospace

Circular MIL Spec Connector 8P SIZE 16 STRAIGHT PLUG SOCKET

Datasheet

57In Stock

$100.31

$80.11

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT

MS27497T18B32S
Amphenol Aerospace
1: $400.45
71In Stock
28Expected 2026-08-07

Mfr. Part #
MS27497T18B32S

Mouser Part #
654-MS27497T18B32S

Amphenol Aerospace

Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT

Datasheet

71In Stock

28Expected 2026-08-07

$400.45

$332.52

$285.11

$171.07

$135.39

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 66P 18 SIZE WALL MOUNT RECEPTACLE SKT

MS27497T18F35S
Amphenol Aerospace
1: $191.20
28In Stock

Mfr. Part #
MS27497T18F35S

Mouser Part #
654-MS27497T18F35S

Amphenol Aerospace

Circular MIL Spec Connector 66P 18 SIZE WALL MOUNT RECEPTACLE SKT

Datasheet

28In Stock

$191.20

$175.48

$168.72

$163.09

$154.09

Min.: 1
Mult.: 1

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

MS27508E12F35S
Amphenol Aerospace
1: $113.76
91In Stock

Mfr. Part #
MS27508E12F35S

Mouser Part #
654-MS27508E12F35S

Amphenol Aerospace

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

Datasheet

91In Stock

$113.76

$94.87

$90.78

$85.35

$84.64

Min.: 1
Mult.: 1

Circular MIL Spec Connector 66P SZ 18 PIN

MS27508E18F35A
Amphenol Aerospace
1: $161.06
23In Stock

Mfr. Part #
MS27508E18F35A

Mouser Part #
654-MS27508E18F35A

Amphenol Aerospace

Circular MIL Spec Connector 66P SZ 18 PIN

Datasheet

23In Stock

$161.06

$130.42

$100.32

$87.16

Min.: 1
Mult.: 1

Circular MIL Spec Connector 8P SZ 12 PLUG CBL MNT PIN

MS27484T12B8P
Amphenol Aerospace
1: $116.84
20In Stock

Mfr. Part #
MS27484T12B8P

Mouser Part #
654-MS27484T12B8P

Amphenol Aerospace

Circular MIL Spec Connector 8P SZ 12 PLUG CBL MNT PIN

Datasheet

20In Stock

$116.84

$97.11

$95.77

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector BOX MOUNT RECEP

MS27508E10B35P
Amphenol Aerospace
1: $146.09
95In Stock

Mfr. Part #
MS27508E10B35P

Mouser Part #
654-MS27508E10B35P

Amphenol Aerospace

Circular MIL Spec Connector BOX MOUNT RECEP

Datasheet

95In Stock

$146.09

$133.13

$103.54

$60.39

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 37P SZ 14 FEM PNL MNT SKT

MS27474T14B35S
Amphenol Aerospace
1: $134.45
50In Stock

Mfr. Part #
MS27474T14B35S

Mouser Part #
654-MS27474T14B35S

Amphenol Aerospace

Circular MIL Spec Connector 37P SZ 14 FEM PNL MNT SKT

Datasheet

50In Stock

$134.45

$120.10

$119.06

$116.27

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 55P 16 SIZE BOX MOUNT RECEPTACLE PIN

MS27508E16F35A
Amphenol Aerospace
1: $118.86
31In Stock

Mfr. Part #
MS27508E16F35A

Mouser Part #
654-MS27508E16F35A

Amphenol Aerospace

Circular MIL Spec Connector 55P 16 SIZE BOX MOUNT RECEPTACLE PIN

Datasheet

31In Stock

$118.86

$105.65

$101.58

$98.19

$92.76

Min.: 1
Mult.: 1

Circular MIL Spec Connector 3P SZ 8 WALL MNT SOCKET

MS27497T8F98S
Amphenol Aerospace
1: $108.88
33In Stock

Mfr. Part #
MS27497T8F98S

Mouser Part #
654-MS27497T8F98S

Amphenol Aerospace

Circular MIL Spec Connector 3P SZ 8 WALL MNT SOCKET

Datasheet

33In Stock

$108.88

$96.78

$93.05

$89.94

$84.99

Min.: 1
Mult.: 1

Circular MIL Spec Connector 13P SZ 10 PIN BOX MNT

MS27508E10F35P
Amphenol Aerospace
1: $151.33
14In Stock

Mfr. Part #
MS27508E10F35P

Mouser Part #
654-MS27508E10F35P

Amphenol Aerospace

Circular MIL Spec Connector 13P SZ 10 PIN BOX MNT

Datasheet

14In Stock

$151.33

$72.24

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories PLUG

MS27488-22
Amphenol Aerospace
1: $0.23
84,937In Stock
61,800On Order

Mfr. Part #
MS27488-22

Mouser Part #
654-MS27488-22

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories PLUG

Datasheet

84,937In Stock

61,800On Order

$0.23

Min.: 1
Mult.: 1

Circular MIL Spec Connector HERMETIC SOLDER MNT REC 6P SZ 22D PIN

MS27471Y9D35P
Amphenol Aerospace
1: $690.62
4In Stock

Mfr. Part #
MS27471Y9D35P

Mouser Part #
654-MS27471Y9D35P

Amphenol Aerospace

Circular MIL Spec Connector HERMETIC SOLDER MNT REC 6P SZ 22D PIN

Datasheet

4In Stock

$690.62

$583.33

$426.86

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P SZ 10 RCPT WALL MNT SKT

MS27472E10B35S
Amphenol Aerospace
1: $111.99
1In Stock

Mfr. Part #
MS27472E10B35S

Mouser Part #
654-MS27472E10B35S

Amphenol Aerospace

Circular MIL Spec Connector 13P SZ 10 RCPT WALL MNT SKT

Datasheet

1In Stock

$111.99

$99.55

$95.72

$92.52

$87.41

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 22P SZ 12 PIN BOX MNT

MS27508E12B3P
Amphenol Aerospace
1: $96.71
9In Stock

Mfr. Part #
MS27508E12B3P

Mouser Part #
654-MS27508E12B3P

Amphenol Aerospace

Circular MIL Spec Connector 22P SZ 12 PIN BOX MNT

Datasheet

9In Stock

$96.71

$83.87

$80.64

$77.95

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 41P 20 SIZE WALL MOUNT RECEPTACLE PIN

MS27472T20B41P
Amphenol Aerospace
1: $126.43
23In Stock

Mfr. Part #
MS27472T20B41P

Mouser Part #
654-MS27472T20B41P

Amphenol Aerospace

Circular MIL Spec Connector 41P 20 SIZE WALL MOUNT RECEPTACLE PIN

Datasheet

23In Stock

$126.43

$115.29

$110.85

$107.15

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector Plug 5P3 SZ 18 SOC

MS27473T18F53S
Amphenol Aerospace
1: $433.74
4In Stock

Mfr. Part #
MS27473T18F53S

Mouser Part #
654-MS27473T18F53S

Amphenol Aerospace

Circular MIL Spec Connector Plug 5P3 SZ 18 SOC

Datasheet

4In Stock

$433.74

$305.12

$270.76

Min.: 1
Mult.: 1

Circular MIL Spec Connector 39P 20 SIZE WALL MOUNT RECEPTACLE SKT

MS27497E20F39S
Amphenol Aerospace
1: $190.92
11In Stock

Mfr. Part #
MS27497E20F39S

Mouser Part #
654-MS27497E20F39S

Amphenol Aerospace

Circular MIL Spec Connector 39P 20 SIZE WALL MOUNT RECEPTACLE SKT

Datasheet

11In Stock

$190.92

$175.20

$168.47

$162.85

$153.85

Min.: 1
Mult.: 1

Circular MIL Spec Connector 53P SZ 18 PLUG CBL MNT PIN

MS27473T18F53P
Amphenol Aerospace
1: $375.24
6In Stock

Mfr. Part #
MS27473T18F53P

Mouser Part #
654-MS27473T18F53P

Amphenol Aerospace

Circular MIL Spec Connector 53P SZ 18 PLUG CBL MNT PIN

Datasheet

6In Stock

$375.24

$234.23

Min.: 1
Mult.: 1

Circular MIL Spec Connector 55P SZ 16 PLUG CBL MNT PIN

MS27484E16F35P
Amphenol Aerospace
1: $168.05
9In Stock

Mfr. Part #
MS27484E16F35P

Mouser Part #
654-MS27484E16F35P

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 16 PLUG CBL MNT PIN

Datasheet

9In Stock

$168.05

$153.24

$147.36

$142.43

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 21P FM SZ 22 SOC WALL MNT

MS27497T22F21S
Amphenol Aerospace
1: $167.93
29In Stock

Mfr. Part #
MS27497T22F21S

Mouser Part #
654-MS27497T22F21S

Amphenol Aerospace

Circular MIL Spec Connector 21P FM SZ 22 SOC WALL MNT

Datasheet

29In Stock

$167.93

$153.13

$147.24

$142.33

$134.47

Min.: 1
Mult.: 1

Circular MIL Spec Connector 55P SZ 16 PLUG CBL MNT SKT

MS27473E16B35S
Amphenol Aerospace
1: $118.24
70In Stock

Mfr. Part #
MS27473E16B35S

Mouser Part #
654-MS27473E16B35S

Amphenol Aerospace

Circular MIL Spec Connector 55P SZ 16 PLUG CBL MNT SKT

Datasheet

70In Stock

$118.24

Min.: 1
Mult.: 1

No