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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 RECPT 37P SZ 14 PIN

MS27474E14B35P
Amphenol Aerospace
1: S/392.25
30In Stock

Mfr. Part #
MS27474E14B35P

Mouser Part #
654-MS27474E14B35P

Amphenol Aerospace

Circular MIL Spec Connector RECPT 37P SZ 14 PIN

Datasheet

30In Stock

S/392.25

S/357.72

S/343.94

S/329.03

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 61P 24 SIZE BOX MOUNT RECEPTACLE PIN

MS27508E24B61PA
Amphenol Aerospace
1: S/438.72
2In Stock

Mfr. Part #
MS27508E24B61PA

Mouser Part #
654-MS27508E24B61PA

Amphenol Aerospace

Circular MIL Spec Connector 61P 24 SIZE BOX MOUNT RECEPTACLE PIN

Datasheet

2In Stock

S/438.72

S/400.07

S/384.70

S/371.85

S/351.34

Min.: 1
Mult.: 1

No

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

MS27473T18F53P
Amphenol Aerospace
1: S/848.14
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

S/848.14

S/798.16

S/796.44

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 26P 16 SIZE STRAIGHT PLUG PIN

MS27484T16F26PA
Amphenol Aerospace
1: S/378.12
9In Stock

Mfr. Part #
MS27484T16F26PA

Mouser Part #
654-MS27484T16F26PA

Amphenol Aerospace

Circular MIL Spec Connector 26P 16 SIZE STRAIGHT PLUG PIN

Datasheet

9In Stock

S/378.12

S/344.84

S/331.56

S/307.27

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 128P SZ 24 PIN

MS27497E24F35P
Amphenol Aerospace
1: S/429.69
9In Stock

Mfr. Part #
MS27497E24F35P

Mouser Part #
654-MS27497E24F35P

Amphenol Aerospace

Circular MIL Spec Connector 128P SZ 24 PIN

Datasheet

9In Stock

S/429.69

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 10C 10#20 SOC

MS27497T12A98S
Amphenol Aerospace
1: S/340.40
13In Stock

Mfr. Part #
MS27497T12A98S

Mouser Part #
654-MS27497T12A98S

Amphenol Aerospace

Circular MIL Spec Connector 10C 10#20 SOC

Datasheet

13In Stock

S/340.40

S/229.15

S/221.29

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector PLG STR CRP ENI 2235SN

MS27473E22F35S
Amphenol Aerospace
1: S/622.18
5In Stock

Mfr. Part #
MS27473E22F35S

Mouser Part #
654-MS27473E22F35S

Amphenol Aerospace

Circular MIL Spec Connector PLG STR CRP ENI 2235SN

Datasheet

5In Stock

S/622.18

S/550.91

S/541.06

Min.: 1
Mult.: 1

Circular MIL Spec Connector 15P SZ 14 PLUG CBL MNT PIN

MS27473T14B15P
Amphenol Aerospace
1: S/357.57
30In Stock
Factory Special Order

Mfr. Part #
MS27473T14B15P

Mouser Part #
654-MS27473T14B15P

Factory Special Order

Amphenol Aerospace

Circular MIL Spec Connector 15P SZ 14 PLUG CBL MNT PIN

Datasheet

30In Stock

S/357.57

S/310.70

S/282.60

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 12P 14 SIZE JAM NUT RECEPTACLE SKT

MS27474E14F97S
Amphenol Aerospace
1: S/2,621.29
5In Stock

Mfr. Part #
MS27474E14F97S

Mouser Part #
654-MS27474E14F97S

Amphenol Aerospace

Circular MIL Spec Connector 12P 14 SIZE JAM NUT RECEPTACLE SKT

Datasheet

5In Stock

S/2,621.29

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 8P SIZE 12 SOCKET PANEL MOUNT RECPT

MS27474T12B8S
Amphenol Aerospace
1: S/345.11
68In Stock

Mfr. Part #
MS27474T12B8S

Mouser Part #
654-MS27474T12B8S

Amphenol Aerospace

Circular MIL Spec Connector 8P SIZE 12 SOCKET PANEL MOUNT RECPT

Datasheet

68In Stock

S/345.11

S/314.71

S/302.60

S/292.52

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 18P SZ 14 FEM PNL MNT SKT

MS27474T14F18S
Amphenol Aerospace
1: S/641.02
34In Stock

Mfr. Part #
MS27474T14F18S

Mouser Part #
654-MS27474T14F18S

Amphenol Aerospace

Circular MIL Spec Connector 18P SZ 14 FEM PNL MNT SKT

Datasheet

34In Stock

S/641.02

S/638.29

S/635.61

S/387.11

S/354.68

Min.: 1
Mult.: 1

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

MS27472T16B35P
Amphenol Aerospace
1: S/381.23
56In Stock

Mfr. Part #
MS27472T16B35P

Mouser Part #
654-MS27472T16B35P

Amphenol Aerospace

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

Datasheet

56In Stock

S/381.23

S/343.24

S/334.79

S/324.63

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 61P SZ 24 PLUG CBL MNT PIN

MS27473E24B61P
Amphenol Aerospace
1: S/453.79
29In Stock

Mfr. Part #
MS27473E24B61P

Mouser Part #
654-MS27473E24B61P

Amphenol Aerospace

Circular MIL Spec Connector 61P SZ 24 PLUG CBL MNT PIN

Datasheet

29In Stock

S/453.79

S/413.81

S/397.89

S/369.05

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

MS27473E8F35S
Amphenol Aerospace
1: S/435.84
100In Stock
317On Order

Mfr. Part #
MS27473E8F35S

Mouser Part #
654-MS27473E8F35S

Amphenol Aerospace

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

100In Stock

317On Order

S/435.84

S/398.75

S/393.06

S/256.75

Min.: 1
Mult.: 1

Circular MIL Spec Connector 22P SZ 12 PLUG CBL MNT PIN

MS27473T12B35P
Amphenol Aerospace
1: S/261.46
109In Stock

Mfr. Part #
MS27473T12B35P

Mouser Part #
654-MS27473T12B35P

Amphenol Aerospace

Circular MIL Spec Connector 22P SZ 12 PLUG CBL MNT PIN

Datasheet

109In Stock

S/261.46

S/224.36

S/219.15

S/214.59

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 22P SZ 12 PLUG CBL MNT SKT

MS27473T12B35S
Amphenol Aerospace
1: S/312.72
60In Stock
100Expected 10/26/2026

Mfr. Part #
MS27473T12B35S

Mouser Part #
654-MS27473T12B35S

Amphenol Aerospace

Circular MIL Spec Connector 22P SZ 12 PLUG CBL MNT SKT

Datasheet

60In Stock

100Expected 10/26/2026

S/312.72

S/269.32

S/266.29

S/263.76

S/221.52

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 3P SZ 12 PLUG CBL MNT SKT

MS27473T12F3S
Amphenol Aerospace
1: S/389.79
28In Stock
100Expected 11/20/2026

Mfr. Part #
MS27473T12F3S

Mouser Part #
654-MS27473T12F3S

Amphenol Aerospace

Circular MIL Spec Connector 3P SZ 12 PLUG CBL MNT SKT

Datasheet

28In Stock

100Expected 11/20/2026

S/389.79

S/251.42

S/251.26

S/200.11

S/190.58

Min.: 1
Mult.: 1

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

MS27473T18B35PB
Amphenol Aerospace
1: S/398.44
45In Stock

Mfr. Part #
MS27473T18B35PB

Mouser Part #
654-MS27473T18B35PB

Amphenol Aerospace

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

Datasheet

45In Stock

S/398.44

S/363.36

S/349.35

S/337.71

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 79P SZ 20 PLUG CBL MNT PIN

MS27473T20B35P
Amphenol Aerospace
1: S/624.79
39In Stock

Mfr. Part #
MS27473T20B35P

Mouser Part #
654-MS27473T20B35P

Amphenol Aerospace

Circular MIL Spec Connector 79P SZ 20 PLUG CBL MNT PIN

Datasheet

39In Stock

S/624.79

S/580.02

S/574.26

S/568.54

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 79P SZ 20 PLUG CBL MNT SKT

MS27473T20B35S
Amphenol Aerospace
1: S/454.76
29In Stock

Mfr. Part #
MS27473T20B35S

Mouser Part #
654-MS27473T20B35S

Amphenol Aerospace

Circular MIL Spec Connector 79P SZ 20 PLUG CBL MNT SKT

Datasheet

29In Stock

S/454.76

S/405.87

S/395.95

S/387.42

S/387.03

Min.: 1
Mult.: 1

No

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

MS27473T24B35S
Amphenol Aerospace
1: S/772.35
10In Stock

Mfr. Part #
MS27473T24B35S

Mouser Part #
654-MS27473T24B35S

Amphenol Aerospace

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

Datasheet

10In Stock

S/772.35

S/644.68

S/603.42

S/574.65

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 3P SZ 8 PLUG CBL MNT SKT

MS27473T8B98S
Amphenol Aerospace
1: S/322.65
102In Stock

Mfr. Part #
MS27473T8B98S

Mouser Part #
654-MS27473T8B98S

Amphenol Aerospace

Circular MIL Spec Connector 3P SZ 8 PLUG CBL MNT SKT

Datasheet

102In Stock

S/322.65

S/242.97

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

MS27484E8F35S
Amphenol Aerospace
1: S/787.22
91In Stock

Mfr. Part #
MS27484E8F35S

Mouser Part #
654-MS27484E8F35S

Amphenol Aerospace

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

Datasheet

91In Stock

S/787.22

S/420.27

S/348.61

Min.: 1
Mult.: 1

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN

MS27484T14B35PB
Amphenol Aerospace
1: S/396.02
36In Stock

Mfr. Part #
MS27484T14B35PB

Mouser Part #
654-MS27484T14B35PB

Amphenol Aerospace

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN

Datasheet

36In Stock

S/396.02

S/361.15

S/347.25

S/324.32

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 37P FM SZ 14 SOC WALL MNT

MS27497T14B35S
Amphenol Aerospace
1: S/356.71
29In Stock

Mfr. Part #
MS27497T14B35S

Mouser Part #
654-MS27497T14B35S

Amphenol Aerospace

Circular MIL Spec Connector 37P FM SZ 14 SOC WALL MNT

Datasheet

29In Stock

S/356.71

S/306.61

S/268.04

S/264.38

View

Min.: 1
Mult.: 1

No