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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN MS27473T14F35P Amphenol Aerospace 1: $70.100 24In Stock	Mfr. Part # MS27473T14F35P Mouser Part # 654-MS27473T14F35P	Amphenol Aerospace	Circular MIL Spec Connector 37P 14 SIZE STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	24In Stock	$70.100 $65.873	Min.: 1 Mult.: 1
Circular MIL Spec Connector 37P FM SZ 14 SOC WALL MNT MS27497T14F35S Amphenol Aerospace 1: $202.005 90In Stock	Mfr. Part # MS27497T14F35S Mouser Part # 654-MS27497T14F35S	Amphenol Aerospace	Circular MIL Spec Connector 37P FM SZ 14 SOC WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	90In Stock	$202.005 $191.341 $178.741 $177.089 View $132.486 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT MS27508E12B35S Amphenol Aerospace 1: $97.328 97In Stock	Mfr. Part # MS27508E12B35S Mouser Part # 654-MS27508E12B35S	Amphenol Aerospace	Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	97In Stock	$97.328 $84.409 $77.516 $73.369	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 32P SZ 18 PLUG CBL MNT SKT MS27473T18B32S Amphenol Aerospace 1: $97.944 99In Stock	Mfr. Part # MS27473T18B32S Mouser Part # 654-MS27473T18B32S	Amphenol Aerospace	Circular MIL Spec Connector 32P SZ 18 PLUG CBL MNT SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	99In Stock	$97.944 $86.346	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 6P SIZE 8 SOCKET CABLE MOUNT PLUG MS27473T8A35S Amphenol Aerospace 1: $71.079 97In Stock	Mfr. Part # MS27473T8A35S Mouser Part # 654-MS27473T8A35S	Amphenol Aerospace	Circular MIL Spec Connector 6P SIZE 8 SOCKET CABLE MOUNT PLUG Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	97In Stock	$71.079 $60.347 $57.408 $54.275 View $54.184 $53.797 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT MS27497T14B18S Amphenol Aerospace 1: $95.711 81In Stock 13Expected 11/24/2026	Mfr. Part # MS27497T14B18S Mouser Part # 654-MS27497T14B18S	Amphenol Aerospace	Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	81In Stock 13Expected 11/24/2026	$95.711 $85.081 $81.800 $79.066 $74.702	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 53P SZ 18 SOCKET MS27508E18A53S Amphenol Aerospace 1: $147.981 27In Stock	Mfr. Part # MS27508E18A53S Mouser Part # 654-MS27508E18A53S	Amphenol Aerospace	Circular MIL Spec Connector 53P SZ 18 SOCKET Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	27In Stock	$147.981 $135.802 $130.584 $123.258 View $123.133 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 6P SZ 8 PLUG CBL MNT SKT MS27473T8B35S Amphenol Aerospace 1: $138.206 100In Stock	Mfr. Part # MS27473T8B35S Mouser Part # 654-MS27473T8B35S	Amphenol Aerospace	Circular MIL Spec Connector 6P SZ 8 PLUG CBL MNT SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	100In Stock	$138.206 $74.042 $64.460 $61.669 $56.941	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 5P Size 10 Rear Mount Receptacle MS27474T10F5P Amphenol Aerospace 1: $98.844 89In Stock	Mfr. Part # MS27474T10F5P Mouser Part # 654-MS27474T10F5P	Amphenol Aerospace	Circular MIL Spec Connector 5P Size 10 Rear Mount Receptacle Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	89In Stock	$98.844 $87.861 $84.477 $81.652 View $77.186 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 37P SZ 14 FEM PNL MNT SKT MS27474T14B35S Amphenol Aerospace 1: $104.791 50In Stock	Mfr. Part # MS27474T14B35S Mouser Part # 654-MS27474T14B35S	Amphenol Aerospace	Circular MIL Spec Connector 37P SZ 14 FEM PNL MNT SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	50In Stock	$104.791 $90.310 $87.804	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 8P SIZE 12 STRAIGHT PLUG PIN MS27484T12F8P Amphenol Aerospace 1: $141.418 98In Stock	Mfr. Part # MS27484T12F8P Mouser Part # 654-MS27484T12F8P	Amphenol Aerospace	Circular MIL Spec Connector 8P SIZE 12 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	98In Stock	$141.418 $118.940 $101.441 $82.165 $82.153	Min.: 1 Mult.: 1
Circular MIL Spec Tools, Hardware & Accessories PLUG MS27488-22 Amphenol Aerospace 1: $182 87.761In Stock 24.570On Order	Mfr. Part # MS27488-22 Mouser Part # 654-MS27488-22	Amphenol Aerospace	Circular MIL Spec Tools, Hardware & Accessories PLUG	Datasheet	87.761In Stock 24.570On Order	$182	Min.: 1 Mult.: 1
Circular MIL Spec Connector 13P SZ 10 PIN BOX MNT MS27508E10F35P Amphenol Aerospace 1: $101.771 13In Stock	Mfr. Part # MS27508E10F35P Mouser Part # 654-MS27508E10F35P	Amphenol Aerospace	Circular MIL Spec Connector 13P SZ 10 PIN BOX MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	13In Stock	$101.771 $91.381 $91.279 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 8P SIZE 16 STRAIGHT PLUG SOCKET MS27473T16B8S Amphenol Aerospace 1: $80.775 55In Stock	Mfr. Part # MS27473T16B8S Mouser Part # 654-MS27473T16B8S	Amphenol Aerospace	Circular MIL Spec Connector 8P SIZE 16 STRAIGHT PLUG SOCKET Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	55In Stock	$80.775 $74.030 $72.458 $70.795 View $70.305 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT MS27497T18B32S Amphenol Aerospace 1: $120.171 99In Stock	Mfr. Part # MS27497T18B32S Mouser Part # 654-MS27497T18B32S	Amphenol Aerospace	Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	99In Stock	$120.171 $109.279 $105.326 $101.806 View $96.360 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 66P 18 SIZE WALL MOUNT RECEPTACLE SKT MS27497T18F35S Amphenol Aerospace 1: $112.435 28In Stock	Mfr. Part # MS27497T18F35S Mouser Part # 654-MS27497T18F35S	Amphenol Aerospace	Circular MIL Spec Connector 66P 18 SIZE WALL MOUNT RECEPTACLE SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	28In Stock	$112.435 $105.759	Min.: 1 Mult.: 1
Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT MS27508E12F35S Amphenol Aerospace 1: $90.276 90In Stock	Mfr. Part # MS27508E12F35S Mouser Part # 654-MS27508E12F35S	Amphenol Aerospace	Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	90In Stock	$90.276 $76.252	Min.: 1 Mult.: 1
Circular MIL Spec Connector 66P SZ 18 PIN MS27508E18F35A Amphenol Aerospace 1: $140.245 23In Stock	Mfr. Part # MS27508E18F35A Mouser Part # 654-MS27508E18F35A	Amphenol Aerospace	Circular MIL Spec Connector 66P SZ 18 PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	23In Stock	$140.245 $115.055 $108.698 $99.914 View $99.880 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 41P 20 SIZE WALL MOUNT RECEPTACLE PIN MS27472T20B41P Amphenol Aerospace 1: $106.522 22In Stock	Mfr. Part # MS27472T20B41P Mouser Part # 654-MS27472T20B41P	Amphenol Aerospace	Circular MIL Spec Connector 41P 20 SIZE WALL MOUNT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	22In Stock	$106.522 $97.135 $93.398 $90.288 View $85.343 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 100P FM SZ 22 PIN WALL MNT MS27497T22B35P Amphenol Aerospace 1: $146.101 26In Stock 1On Order	Mfr. Part # MS27497T22B35P Mouser Part # 654-MS27497T22B35P	Amphenol Aerospace	Circular MIL Spec Connector 100P FM SZ 22 PIN WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	26In Stock 1On Order	$146.101 $133.238 $128.112 $123.828 View $117.061 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 21P FM SZ 22 SOC WALL MNT MS27497T22F21S Amphenol Aerospace 1: $132.862 29In Stock	Mfr. Part # MS27497T22F21S Mouser Part # 654-MS27497T22F21S	Amphenol Aerospace	Circular MIL Spec Connector 21P FM SZ 22 SOC WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	29In Stock	$132.862 $121.162 $116.491 $105.748 View $105.725 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 41P SZ 20 PLUG CBL MNT SKT MS27473E20B41S Amphenol Aerospace 1: $121.253 38In Stock 61On Order	Mfr. Part # MS27473E20B41S Mouser Part # 654-MS27473E20B41S	Amphenol Aerospace	Circular MIL Spec Connector 41P SZ 20 PLUG CBL MNT SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	38In Stock 61On Order	$121.253 $112.344 $110.635	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 41P PLUG SKT MS27473E20F41S Amphenol Aerospace 1: $126.665 17In Stock	Mfr. Part # MS27473E20F41S Mouser Part # 654-MS27473E20F41S	Amphenol Aerospace	Circular MIL Spec Connector 41P PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	17In Stock	$126.665 $104.267	Min.: 1 Mult.: 1
Circular MIL Spec Connector 55P 16 SIZE BOX MOUNT RECEPTACLE PIN MS27508E16F35A Amphenol Aerospace 1: $89.114 31In Stock	Mfr. Part # MS27508E16F35A Mouser Part # 654-MS27508E16F35A	Amphenol Aerospace	Circular MIL Spec Connector 55P 16 SIZE BOX MOUNT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	31In Stock	$89.114 $75.557 $72.139 $71.581 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 66P SZ 18 PLUG CBL MNT PIN MS27473T18B35P Amphenol Aerospace 1: $126.574 16In Stock	Mfr. Part # MS27473T18B35P Mouser Part # 654-MS27473T18B35P	Amphenol Aerospace	Circular MIL Spec Connector 66P SZ 18 PLUG CBL MNT PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	16In Stock	$126.574 $103.492	Min.: 1 Mult.: 1	No

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MIL-DTL-38999 Series II Circular Connectors

Types of Connectors