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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 PLUG

MS27473E18A53P
Amphenol Aerospace
1: ¥41,767.5
1In Stock
Factory Special Order

Mfr. Part #
MS27473E18A53P

Mouser Part #
654-MS27473E18A53P

Factory Special Order

Amphenol Aerospace

Circular MIL Spec Connector PLUG

Datasheet

1In Stock

¥41,767.5

View

Min.: 1
Mult.: 1

No

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

MS27473E20B41S
Amphenol Aerospace
1: ¥27,167.3
99Expected 10/6/2026

Mfr. Part #
MS27473E20B41S

Mouser Part #
654-MS27473E20B41S

Amphenol Aerospace

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

Datasheet

99Expected 10/6/2026

¥27,167.3

¥24,082.8

¥15,560.2

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 5P SZ 10 PLUG CBL MNT SKT

MS27473T10B5S-LC
Amphenol Aerospace
1: ¥9,682
1In Stock

Mfr. Part #
MS27473T10B5S-LC

Mouser Part #
654-MS27473T10B5SL

Amphenol Aerospace

Circular MIL Spec Connector 5P SZ 10 PLUG CBL MNT SKT

Datasheet

1In Stock

¥9,682

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

MS27473T10F35S
Amphenol Aerospace
1: ¥16,666.5
100Expected 11/9/2026

Mfr. Part #
MS27473T10F35S

Mouser Part #
654-MS27473T10F35S

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG SKT

Datasheet

100Expected 11/9/2026

¥16,666.5

¥11,263.2

¥11,067.2

¥10,858

¥8,366.5

Min.: 1
Mult.: 1

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

MS27473T12B35S-LC
Amphenol Aerospace
1: ¥14,924.1
2In Stock

Mfr. Part #
MS27473T12B35S-LC

Mouser Part #
654-MS27473T12B35SL

Amphenol Aerospace

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

Datasheet

2In Stock

¥14,924.1

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 4P SZ 12 PLUG CBL MNT SKT

MS27473T12B4S
Amphenol Aerospace
1: ¥9,240.1
100Expected 2/22/2027

Mfr. Part #
MS27473T12B4S

Mouser Part #
654-MS27473T12B4S

Amphenol Aerospace

Circular MIL Spec Connector 4P SZ 12 PLUG CBL MNT SKT

Datasheet

100Expected 2/22/2027

¥9,240.1

¥8,263.5

¥8,059.2

¥7,879.8

¥7,580.8

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 18P SZ 14 PLUG CBL MNT SKT

MS27473T14B18S
Amphenol Aerospace
1: ¥14,487.2
102On Order

Mfr. Part #
MS27473T14B18S

Mouser Part #
654-MS27473T14B18S

Amphenol Aerospace

Circular MIL Spec Connector 18P SZ 14 PLUG CBL MNT SKT

Datasheet

102On Order

¥14,487.2

¥12,700

¥12,573.8

¥12,449.2

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 5P SZ 14 PLUG CBL MNT PIN

MS27473T14B5P
Amphenol Aerospace
1: ¥10,688.5
87Expected 11/5/2026

Mfr. Part #
MS27473T14B5P

Mouser Part #
654-MS27473T14B5P

Amphenol Aerospace

Circular MIL Spec Connector 5P SZ 14 PLUG CBL MNT PIN

Datasheet

87Expected 11/5/2026

¥10,688.5

¥9,268.4

¥8,911.3

¥8,613.9

View

Min.: 1
Mult.: 1

No

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

MS27473T16B35S-LC
Amphenol Aerospace
1: ¥15,543.6
3In Stock
Factory Special Order

Mfr. Part #
MS27473T16B35S-LC

Mouser Part #
654-MS27473T16B35SL

Factory Special Order

Amphenol Aerospace

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

Datasheet

3In Stock

¥15,543.6

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 26P SZ 16 PLUG CBL MNT SKT

MS27473T16F26S
Amphenol Aerospace
1: ¥17,563.4
5In Stock
Factory Special Order

Mfr. Part #
MS27473T16F26S

Mouser Part #
654-MS27473T16F26S

Factory Special Order

Amphenol Aerospace

Circular MIL Spec Connector 26P SZ 16 PLUG CBL MNT SKT

Datasheet

5In Stock

¥17,563.4

View

Min.: 1
Mult.: 1

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

MS27473T18B32P
Amphenol Aerospace
1: ¥17,832.5
4In Stock
Factory Special Order

Mfr. Part #
MS27473T18B32P

Mouser Part #
654-MS27473T18B32P

Factory Special Order

Amphenol Aerospace

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

Datasheet

4In Stock

¥17,832.5

View

Min.: 1
Mult.: 1

No

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

MS27473T18B32P-LC
Amphenol Aerospace
1: ¥14,889.2
8In Stock
Factory Special Order

Mfr. Part #
MS27473T18B32P-LC

Mouser Part #
654-MS27473T18B32PL

Factory Special Order

Amphenol Aerospace

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

Datasheet

8In Stock

¥14,889.2

View

Min.: 1
Mult.: 1

No

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

MS27473T18B32S
Amphenol Aerospace
1: ¥13,537.2
99Expected 9/15/2026

Mfr. Part #
MS27473T18B32S

Mouser Part #
654-MS27473T18B32S

Amphenol Aerospace

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

Datasheet

99Expected 9/15/2026

¥13,537.2

¥12,713.3

¥12,107

¥11,530.7

Min.: 1
Mult.: 1

No

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

MS27473T18B35P
Amphenol Aerospace
1: ¥22,267.4
19Expected 9/15/2026

Mfr. Part #
MS27473T18B35P

Mouser Part #
654-MS27473T18B35P

Amphenol Aerospace

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

Datasheet

19Expected 9/15/2026

¥22,267.4

¥15,209.8

¥15,060.3

¥14,910.8

¥13,130.2

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SIZE 8 SOCKET CABLE MOUNT PLUG

MS27473T8A35S
Amphenol Aerospace
1: ¥9,117.2
97Expected 9/1/2026

Mfr. Part #
MS27473T8A35S

Mouser Part #
654-MS27473T8A35S

Amphenol Aerospace

Circular MIL Spec Connector 6P SIZE 8 SOCKET CABLE MOUNT PLUG

Datasheet

97Expected 9/1/2026

¥9,117.2

¥8,125.6

¥7,609

¥7,163.9

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P 8B SIZE STRAIGHT PLUG SKT

MS27473T8B35S-LC
Amphenol Aerospace
1: ¥13,950.7
1In Stock

Mfr. Part #
MS27473T8B35S-LC

Mouser Part #
654-MS27473T8B35S-LC

Amphenol Aerospace

Circular MIL Spec Connector 6P 8B SIZE STRAIGHT PLUG SKT

Datasheet

1In Stock

¥13,950.7

¥13,028.9

¥10,769.9

¥10,535.7

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

MS27473T8F35S
Amphenol Aerospace
1: ¥17,360.8
128On Order

Mfr. Part #
MS27473T8F35S

Mouser Part #
654-MS27473T8F35S

Amphenol Aerospace

Circular MIL Spec Connector 6P SIZE 8 STRAIGHT PLUG SOCKET

Datasheet

128On Order

¥17,360.8

¥14,842.7

¥13,608.6

¥11,040.7

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 5P Size 10 Rear Mount Receptacle

MS27474T10F5P
Amphenol Aerospace
1: ¥14,410.8
90On Order

Mfr. Part #
MS27474T10F5P

Mouser Part #
654-MS27474T10F5P

Amphenol Aerospace

Circular MIL Spec Connector 5P Size 10 Rear Mount Receptacle

Datasheet

90On Order

¥14,410.8

¥12,809.6

¥12,316.3

¥11,904.4

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG PIN

MS27484T10F35P
Amphenol Aerospace
1: ¥38,932.2
98Expected 9/1/2026

Mfr. Part #
MS27484T10F35P

Mouser Part #
654-MS27484T10F35P

Amphenol Aerospace

Circular MIL Spec Connector 13P 10 SIZE STRAIGHT PLUG PIN

Datasheet

98Expected 9/1/2026

¥38,932.2

¥30,276.7

¥21,624.6

¥13,307.9

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 8P SIZE 12 STRAIGHT PLUG PIN

MS27484T12F8P
Amphenol Aerospace
1: ¥13,728.2
98Expected 11/11/2026

Mfr. Part #
MS27484T12F8P

Mouser Part #
654-MS27484T12F8P

Amphenol Aerospace

Circular MIL Spec Connector 8P SIZE 12 STRAIGHT PLUG PIN

Datasheet

98Expected 11/11/2026

¥13,728.2

¥11,062.3

Min.: 1
Mult.: 1

Circular MIL Spec Connector 37P SZ 14 PLUG CBL MNT PIN

MS27484T14B35P-LC
Amphenol Aerospace
1: ¥15,934
8In Stock

Mfr. Part #
MS27484T14B35P-LC

Mouser Part #
654-MS27484T14B35PL

Amphenol Aerospace

Circular MIL Spec Connector 37P SZ 14 PLUG CBL MNT PIN

Datasheet

8In Stock

¥15,934

View

Min.: 1
Mult.: 1

No

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

MS27484T16B35P
Amphenol Aerospace
1: ¥19,682.9
99Expected 1/5/2027

Mfr. Part #
MS27484T16B35P

Mouser Part #
654-MS27484T16B35P

Amphenol Aerospace

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

Datasheet

99Expected 1/5/2027

¥19,682.9

¥17,842.5

¥17,663.1

¥17,487

¥17,312.6

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector Plug 6P SZ 16 SOC

MS27484T16B6S
Amphenol Aerospace
1: ¥21,024.9
92Expected 10/22/2026

Mfr. Part #
MS27484T16B6S

Mouser Part #
654-MS27484T16B6S

Amphenol Aerospace

Circular MIL Spec Connector Plug 6P SZ 16 SOC

Datasheet

92Expected 10/22/2026

¥21,024.9

¥19,174.6

¥18,435.4

¥17,820.9

View

Min.: 1
Mult.: 1

No

Circular MIL Spec Connector 6P SZ 8 CBL MNT SOC

MS27484T8F35S
Amphenol Aerospace
1: ¥17,759.4
89Expected 10/23/2026

Mfr. Part #
MS27484T8F35S

Mouser Part #
654-MS27484T8F35S

Amphenol Aerospace

Circular MIL Spec Connector 6P SZ 8 CBL MNT SOC

Datasheet

89Expected 10/23/2026

¥17,759.4

¥16,322.6

¥14,626.8

¥13,246.5

View

Min.: 1
Mult.: 1

Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT

MS27497T14B18S
Amphenol Aerospace
1: ¥13,954.1
94Expected 9/23/2026

Mfr. Part #
MS27497T14B18S

Mouser Part #
654-MS27497T14B18S

Amphenol Aerospace

Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT

Datasheet

94Expected 9/23/2026

¥13,954.1

¥12,404.3

¥11,926

¥11,527.3

¥10,891.2

Min.: 1
Mult.: 1

No