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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 55P 16 SIZE BOX MOUNT RECEPTACLE PIN

MS27508E16A35PA
Amphenol Aerospace
1: $137.26
7In Stock

Mfr. Part No.
MS27508E16A35PA

Mouser Part No
654-MS27508E16A35PA

Amphenol Aerospace

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

Datasheet

7In Stock

$137.26

$125.17

$120.36

$116.33

$109.92

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 26P SZ 16 PIN

MS27508E16B26P-LC
Amphenol Aerospace
1: $118.62
1In Stock

Mfr. Part No.
MS27508E16B26P-LC

Mouser Part No
654-MS27508E16B26PC

Amphenol Aerospace

Circular MIL Spec Connector 26P SZ 16 PIN

Datasheet

1In Stock

$118.62

$117.27

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 66P SZ 18 PIN

MS27508E18F35P
Amphenol Aerospace
1: $141.30
3In Stock

Mfr. Part No.
MS27508E18F35P

Mouser Part No
654-MS27508E18F35P

Amphenol Aerospace

Circular MIL Spec Connector 66P SZ 18 PIN

Datasheet

3In Stock

$141.30

$128.86

$123.90

$119.76

$113.15

Min.: 1
Mult.: 1

Circular MIL Spec Connector 100P 22 SIZE BOX MOUNT RECEPTACLE SKT

MS27508E22B35S
Amphenol Aerospace
1: $244.66
1In Stock

Mfr. Part No.
MS27508E22B35S

Mouser Part No
654-MS27508E22B35S

Amphenol Aerospace

Circular MIL Spec Connector 100P 22 SIZE BOX MOUNT RECEPTACLE SKT

Datasheet

1In Stock

$244.66

$212.08

$203.92

$197.12

Quote

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P 10 SIZE WALL MOUNT RECEPTACLE PIN

MS27497T10A35P
Amphenol Aerospace
1: $72.31
3In Stock
Factory Special Order

Mfr. Part No.
MS27497T10A35P

Mouser Part No
654-MS27497T10A35P

Factory Special Order

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE WALL MOUNT RECEPTACLE PIN

Datasheet

3In Stock

$72.31

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 26P 16 SIZE BOX MOUNT RECEPTACLE PIN

MS27499E16F26P
Amphenol Aerospace
1: $104.77
4In Stock

Mfr. Part No.
MS27499E16F26P

Mouser Part No
654-MS27499E16F26P

Amphenol Aerospace

Circular MIL Spec Connector 26P 16 SIZE BOX MOUNT RECEPTACLE PIN

Datasheet

4In Stock

$104.77

$93.13

$89.56

$86.56

$81.79

Min.: 1
Mult.: 1

Circular MIL Spec Connector 15P 14 SIZE STRAIGHT PLUG PIN

MS27473T14F15PC
Amphenol Aerospace
1: $99.33
4In Stock

Mfr. Part No.
MS27473T14F15PC

Mouser Part No
654-MS27473T14F15PC

Amphenol Aerospace

Circular MIL Spec Connector 15P 14 SIZE STRAIGHT PLUG PIN

Datasheet

4In Stock

$99.33

$88.29

$84.89

$83.93

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 11P Size 18 Plug

MS27473T18A11P
Amphenol Aerospace
1: $98.07
12In Stock

Mfr. Part No.
MS27473T18A11P

Mouser Part No
654-MS27473T18A11P

Amphenol Aerospace

Circular MIL Spec Connector 11P Size 18 Plug

Datasheet

12In Stock

$98.07

$85.04

$81.76

$80.54

$69.21

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 22P JAM NUT RECEPT PIN CRIMP SZ 12

MS27474E12B35P
Amphenol Aerospace
1: $136.60
3In Stock

Mfr. Part No.
MS27474E12B35P

Mouser Part No
654-MS27474E12B35P

Amphenol Aerospace

Circular MIL Spec Connector 22P JAM NUT RECEPT PIN CRIMP SZ 12

Datasheet

3In Stock

$136.60

$124.58

$119.78

$115.78

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 16P 20 SIZE BOX MOUNT RECEPTACLE PIN

MS27499E20B16P
Amphenol Aerospace
1: $227.27
7In Stock

Mfr. Part No.
MS27499E20B16P

Mouser Part No
654-MS27499E20B16P

Amphenol Aerospace

Circular MIL Spec Connector 16P 20 SIZE BOX MOUNT RECEPTACLE PIN

Datasheet

7In Stock

$227.27

$176.56

$140.71

$101.99

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 61P Size 24 Rear Mount Receptacle

MS27508E24B61P
Amphenol Aerospace
1: $151.45
6In Stock

Mfr. Part No.
MS27508E24B61P

Mouser Part No
654-MS27508E24B61P

Amphenol Aerospace

Circular MIL Spec Connector 61P Size 24 Rear Mount Receptacle

Datasheet

6In Stock

$151.45

$138.11

$132.80

$128.37

$121.28

Min.: 1
Mult.: 1

No

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

MS27508E24B61PA
Amphenol Aerospace
1: $153.29
2In Stock

Mfr. Part No.
MS27508E24B61PA

Mouser Part No
654-MS27508E24B61PA

Amphenol Aerospace

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

Datasheet

2In Stock

$153.29

$139.78

$134.41

$129.92

$122.75

Min.: 1
Mult.: 1

No

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

MS27484T16F35S
Amphenol Aerospace
1: $263.32
192On Order

Mfr. Part No.
MS27484T16F35S

Mouser Part No
654-MS27484T16F35S

Amphenol Aerospace

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

Datasheet

192On Order

$263.32

$253.19

$223.71

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 32P SZ 18 PLUG CBL MNT SKT

MS27473T18A32S
Amphenol Aerospace
1: $162.68
68In Stock

Mfr. Part No.
MS27473T18A32S

Mouser Part No
654-MS27473T18A32S

Amphenol Aerospace

Circular MIL Spec Connector 32P SZ 18 PLUG CBL MNT SKT

Datasheet

68In Stock

$162.68

$148.35

$142.64

$137.88

$130.26

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector Plug 5P3 SZ 18 SOC

MS27473T18F53S
Amphenol Aerospace
1: $357.19
92Expected 18/11/2026

Mfr. Part No.
MS27473T18F53S

Mouser Part No
654-MS27473T18F53S

Amphenol Aerospace

Circular MIL Spec Connector Plug 5P3 SZ 18 SOC

Datasheet

92Expected 18/11/2026

$357.19

$288.21

$277.60

$271.06

Min.: 1
Mult.: 1

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN

MS27473T14F35P
Amphenol Aerospace
1: $99.99
24Expected 15/9/2026

Mfr. Part No.
MS27473T14F35P

Mouser Part No
654-MS27473T14F35P

Amphenol Aerospace

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN

Datasheet

24Expected 15/9/2026

$99.99

$86.88

Min.: 1
Mult.: 1

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG SKT

MS27473T14F35S
Amphenol Aerospace
1: $194.36
119On Order

Mfr. Part No.
MS27473T14F35S

Mouser Part No
654-MS27473T14F35S

Amphenol Aerospace

Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG SKT

Datasheet

119On Order

$194.36

$146.98

$127.26

$107.02

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 53P 18 SIZE STRAIGHT PLUG SKT

MS27473T18A53S
Amphenol Aerospace
1: $344.75
15Expected 28/9/2026

Mfr. Part No.
MS27473T18A53S

Mouser Part No
654-27473T18A53S

Amphenol Aerospace

Circular MIL Spec Connector 53P 18 SIZE STRAIGHT PLUG SKT

Datasheet

15Expected 28/9/2026

$344.75

$301.88

$260.93

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 5P SZ 10 RCPT WALL MNT PIN

MS27472T10B5P
Amphenol Aerospace
1: $84.63
98Expected 23/10/2026

Mfr. Part No.
MS27472T10B5P

Mouser Part No
654-MS27472T10B5P

Amphenol Aerospace

Circular MIL Spec Connector 5P SZ 10 RCPT WALL MNT PIN

Datasheet

98Expected 23/10/2026

$84.63

$69.01

$67.43

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 5P SZ 14 FEM WALL MNT PIN

MS27472T14B5P
Amphenol Aerospace
1: $137.39
6In Stock

Mfr. Part No.
MS27472T14B5P

Mouser Part No
654-MS27472T14B5P

Amphenol Aerospace

Circular MIL Spec Connector 5P SZ 14 FEM WALL MNT PIN

Datasheet

6In Stock

$137.39

$105.67

$93.76

$86.99

View

Min.: 1
Mult.: 1

No

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

MS27473E12B3P
Amphenol Aerospace
1: $149.80
60On Order

Mfr. Part No.
MS27473E12B3P

Mouser Part No
654-MS27473E12B3P

Amphenol Aerospace

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

Datasheet

60On Order

$149.80

$144.35

$142.66

$141.26

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector PLUG

MS27473E18A53P
Amphenol Aerospace
1: $341.99
1In Stock
Factory Special Order

Mfr. Part No.
MS27473E18A53P

Mouser Part No
654-MS27473E18A53P

Factory Special Order

Amphenol Aerospace

Circular MIL Spec Connector PLUG

Datasheet

1In Stock

$341.99

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 41P SZ 20 PLUG CBL MNT SKT

MS27473E20B41S
Amphenol Aerospace
1: $222.44
99Expected 6/10/2026

Mfr. Part No.
MS27473E20B41S

Mouser Part No
654-MS27473E20B41S

Amphenol Aerospace

Circular MIL Spec Connector 41P SZ 20 PLUG CBL MNT SKT

Datasheet

99Expected 6/10/2026

$222.44

$197.19

$127.40

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

MS27473T10F35S
Amphenol Aerospace
1: $136.46
100Expected 9/11/2026

Mfr. Part No.
MS27473T10F35S

Mouser Part No
654-MS27473T10F35S

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

Datasheet

100Expected 9/11/2026

$136.46

$92.22

$90.62

$88.92

$68.50

Min.: 1
Mult.: 1

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

MS27473T12A35S
Amphenol Aerospace
1: $161.12
99Expected 1/12/2026

Mfr. Part No.
MS27473T12A35S

Mouser Part No
654-MS27473T12A35S

Amphenol Aerospace

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

Datasheet

99Expected 1/12/2026

$161.12

$138.95

$101.62

$98.82

View

Min.: 1
Mult.: 1

No