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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 (CAD) 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: $88.60 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	$88.60 $83.26	Min.: 1 Mult.: 1
Circular MIL Spec Connector 8P SIZE 16 STRAIGHT PLUG SOCKET MS27473T16B8S Amphenol Aerospace 1: $102.10 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	$102.10 $93.57 $91.58 $89.48 View $88.86 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 37P FM SZ 14 SOC WALL MNT MS27497T14F35S Amphenol Aerospace 1: $255.33 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	$255.33 $241.85 $225.92 $223.83 View $167.46 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 100P FM SZ 22 PIN WALL MNT MS27497T22B35P Amphenol Aerospace 1: $184.67 27In Stock	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	27In Stock	$184.67 $168.41 $161.93 $156.51 View $147.96 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT MS27508E12B35S Amphenol Aerospace 1: $123.02 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	$123.02 $106.69 $97.98 $92.74	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 6P SZ 8 PLUG CBL MNT SKT MS27473T8B35S Amphenol Aerospace 1: $174.69 99In 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	99In Stock	$174.69 $93.59 $81.48 $77.95 $71.97	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 32P SZ 18 PLUG CBL MNT SKT MS27473T18B32S Amphenol Aerospace 1: $123.80 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	$123.80 $109.14	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 6P SIZE 8 SOCKET CABLE MOUNT PLUG MS27473T8A35S Amphenol Aerospace 1: $89.84 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	$89.84 $76.28 $72.56 $68.60 View $68.49 $68.00 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 18P SZ 14 SOC WALL MNT MS27497T14B18S Amphenol Aerospace 1: $120.97 81In Stock 13Expected 2026-11-24	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 2026-11-24	$120.97 $107.54 $103.39 $99.94 $94.42	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 55P SZ 16 SOC WALL MNT MS27497T16B35S Amphenol Aerospace 1: $169.92 99In Stock	Mfr. Part # MS27497T16B35S Mouser Part # 654-MS27497T16B35S	Amphenol Aerospace	Circular MIL Spec Connector 55P SZ 16 SOC WALL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 ii connector	Datasheet	99In Stock	$169.92 $154.94 $148.98 $144.01 $136.07	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 53P SZ 18 SOCKET MS27508E18A53S Amphenol Aerospace 1: $187.04 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	$187.04 $171.65 $165.05 $155.79 View $155.64 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 8P SIZE 12 STRAIGHT PLUG PIN MS27484T12F8P Amphenol Aerospace 1: $178.75 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	$178.75 $150.34 $128.22 $103.85 $103.84	Min.: 1 Mult.: 1
Circular MIL Spec Connector 5P Size 10 Rear Mount Receptacle MS27474T10F5P Amphenol Aerospace 1: $124.93 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	$124.93 $111.05 $106.78 $103.20 View $97.56 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 37P SZ 14 FEM PNL MNT SKT MS27474T14B35S Amphenol Aerospace 1: $132.45 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	$132.45 $114.15 $110.98	Min.: 1 Mult.: 1	No
Circular MIL Spec Tools, Hardware & Accessories PLUG MS27488-22 Amphenol Aerospace 1: $0.23 112,239In Stock	Mfr. Part # MS27488-22 Mouser Part # 654-MS27488-22	Amphenol Aerospace	Circular MIL Spec Tools, Hardware & Accessories PLUG	Datasheet	112,239In Stock	$0.23	Min.: 1 Mult.: 1
Circular MIL Spec Connector 13P SZ 10 PIN BOX MNT MS27508E10F35P Amphenol Aerospace 1: $128.64 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	$128.64 $115.50 $115.37 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 32P SZ 18 SOC WALL MNT MS27497T18B32S Amphenol Aerospace 1: $151.89 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	$151.89 $138.12 $133.13 $128.68 View $121.80 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 66P 18 SIZE WALL MOUNT RECEPTACLE SKT MS27497T18F35S Amphenol Aerospace 1: $142.11 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	$142.11 $133.68	Min.: 1 Mult.: 1
Circular MIL Spec Connector 22P 12 SIZE BOX MOUNT RECEPTACLE SKT MS27508E12F35S Amphenol Aerospace 1: $114.11 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	$114.11 $96.38	Min.: 1 Mult.: 1
Circular MIL Spec Connector 66P SZ 18 PIN MS27508E18F35A Amphenol Aerospace 1: $177.26 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	$177.26 $145.43 $137.39 $126.29 View $126.24 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 41P 20 SIZE WALL MOUNT RECEPTACLE PIN MS27472T20B41P Amphenol Aerospace 1: $134.64 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	$134.64 $122.77 $118.05 $114.12 View $107.87 Quote	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 41P SZ 20 PLUG CBL MNT SKT MS27473E20B41S Amphenol Aerospace 1: $153.26 38In Stock 61Expected 2026-11-23	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 61Expected 2026-11-23	$153.26 $142.00 $139.84	Min.: 1 Mult.: 1	No
Circular MIL Spec Connector 41P PLUG SKT MS27473E20F41S Amphenol Aerospace 1: $160.10 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	$160.10 $131.79	Min.: 1 Mult.: 1
Circular MIL Spec Connector 55P 16 SIZE BOX MOUNT RECEPTACLE PIN MS27508E16F35A Amphenol Aerospace 1: $112.64 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	$112.64 $95.50 $91.18 $90.48 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Connector 66P SZ 18 PLUG CBL MNT PIN MS27473T18B35P Amphenol Aerospace 1: $159.98 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	$159.98 $130.81	Min.: 1 Mult.: 1	No

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MIL-DTL-38999 Series II Circular Connectors

Types of Connectors