Circular MIL Spec Connector – Mouser Korea, Republic of

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MIL-DTL-38999 Series III Connectors

Amphenol MIL-DTL-38999 Series III Circular Connectors deliver high-performance capabilities for demanding general duty and harsh environment applications. Developed to operate under severe high temperature and vibration, the connectors feature rapid coupling via a Tri-Start™ thread, shell-to-shell, or metal-to-metal bottoming. Amphenol designed these connectors to provide an EMI shielding capability of 65dB minimum at 10GHz and corrosion resistance of up to 500-hour salt spray exposure. Amphenol MIL-DTL-38999 Series III Circular Connectors offer a rated current range of 1.5A to 5A, a temperature range of -65°C to +175°C, minimum insulation resistance of 5000MΩ, and a dielectric withstanding voltage of 1000V_RMS. These rugged and highly reliable circular connectors are ideally suited for industrial, commercial air, military, C4ISR, and space applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Number of Positions	Contact Gender	Insert Arrangement	Product	Shell Size	Shell Style	MIL Type	Termination Style	Mounting Style	Current Rating	Contact Plating	Contact Material	Series	Packaging
Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT D38999/20FJ35PA Amphenol Aerospace 1: ₩293,437.7 117In Stock	Mfr. Part # D38999/20FJ35PA Mouser Part # 654-D38999/20FJ35PA	Amphenol Aerospace	Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	117In Stock	₩293,437.7 ₩247,272.3 ₩154,532.9 ₩154,420.1	Min.: 1 Mult.: 1		128 Position	Pin (Male)	25-35	Receptacles	25	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 8P FM SZ 13 PIN PNL MNT D38999/24WC8PN Amphenol Aerospace 1: ₩95,670.6 358In Stock	Mfr. Part # D38999/24WC8PN Mouser Part # 654-D38999/24WC8PN	Amphenol Aerospace	Circular MIL Spec Connector 8P FM SZ 13 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	358In Stock	₩95,670.6 ₩83,072.3 ₩74,800.3 ₩62,695.3	Min.: 1 Mult.: 1	No	8 Position	Pin (Male)	13-08	Receptacles	13	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT D38999/24FE35PN Amphenol Aerospace 1: ₩135,198.6 342In Stock	Mfr. Part # D38999/24FE35PN Mouser Part # 654-D38999/24FE35PN	Amphenol Aerospace	Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	342In Stock	₩135,198.6 ₩124,066 ₩118,076.9	Min.: 1 Mult.: 1		55 Position	Pin (Male)	17-35	Receptacles	17	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT D38999/26WG35SA Amphenol Aerospace 1: ₩502,675.7 101In Stock	Mfr. Part # D38999/26WG35SA Mouser Part # 654-D38999/26WG35SA	Amphenol Aerospace	Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	101In Stock	₩502,675.7 ₩451,662.7 ₩427,776.8 ₩264,239.1	Min.: 1 Mult.: 1	No	79 Position	Socket (Female)	21-35	Plugs	21	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 79P RCPT SZ 21 PIN PNL MNT D38999/24FG35PN Amphenol Aerospace 1: ₩151,094.4 122In Stock	Mfr. Part # D38999/24FG35PN Mouser Part # 654-D38999/24FG35PN	Amphenol Aerospace	Circular MIL Spec Connector 79P RCPT SZ 21 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	122In Stock	₩151,094.4 ₩148,261.9	Min.: 1 Mult.: 1		79 Position	Pin (Male)	21-35	Receptacles	21	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 53P RCPT SZ 23 SKT WL MNT D38999/20FH53SN Amphenol Aerospace 1: ₩260,194.7 30In Stock	Mfr. Part # D38999/20FH53SN Mouser Part # 654-D38999/20FH53SN	Amphenol Aerospace	Circular MIL Spec Connector 53P RCPT SZ 23 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	30In Stock	₩260,194.7 ₩214,409.8 ₩139,355.8	Min.: 1 Mult.: 1		53 Position	Socket (Female)	23-53	Receptacles	23	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	7.5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26FJ35PA Amphenol Aerospace 1: ₩247,413.2 98In Stock	Mfr. Part # D38999/26FJ35PA Mouser Part # 654-D38999/26FJ35PA	Amphenol Aerospace	Circular MIL Spec Connector TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	98In Stock	₩247,413.2 ₩213,620.6 ₩205,954.6 ₩204,418.6	Min.: 1 Mult.: 1		128 Position	Pin (Male)	25-35	Plugs	25	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector 11P SZ 21 WALL MOUNT SOCKET D38999/20FG11SA Amphenol Aerospace 1: ₩151,883.6 89In Stock	Mfr. Part # D38999/20FG11SA Mouser Part # 654-D38999/20FG11SA	Amphenol Aerospace	Circular MIL Spec Connector 11P SZ 21 WALL MOUNT SOCKET Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	89In Stock	₩151,883.6 ₩143,287.5	Min.: 1 Mult.: 1		11 Position	Socket (Female)	21-11	Receptacles	21	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	23 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 19P RCPT SZ 25 PIN WL MNT D38999/20FJ19PN Amphenol Aerospace 1: ₩131,027.4 108In Stock	Mfr. Part # D38999/20FJ19PN Mouser Part # 654-D38999/20FJ19PN	Amphenol Aerospace	Circular MIL Spec Connector 19P RCPT SZ 25 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	108In Stock	₩131,027.4	Min.: 1 Mult.: 1		19 Position	Pin (Male)	25-19	Receptacles	25	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	23 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 55P SIZE 23 STRAIGHT PLUG SKT D38999/26FH55SN Amphenol Aerospace 1: ₩594,442.8 78In Stock	Mfr. Part # D38999/26FH55SN Mouser Part # 654-D38999/26FH55SN	Amphenol Aerospace	Circular MIL Spec Connector 55P SIZE 23 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	78In Stock	₩594,442.8 ₩269,213.6 ₩231,587.9	Min.: 1 Mult.: 1		55 Position	Socket (Female)	23-55	Plugs	23	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26FB35SB Amphenol Aerospace 1: ₩174,698.5 96In Stock 3Expected 11/9/2026	Mfr. Part # D38999/26FB35SB Mouser Part # 654-D38999/26FB35SB	Amphenol Aerospace	Circular MIL Spec Connector TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	96In Stock 3Expected 11/9/2026	₩174,698.5 ₩162,748.5	Min.: 1 Mult.: 1		13 Position	Socket (Female)	11-35	Plugs	11	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 100P SIZE 23 STRAIGHT PLUG PIN D38999/26JH35PA Amphenol Aerospace 1: ₩391,969 60In Stock	Mfr. Part # D38999/26JH35PA Mouser Part # 654-D38999/26JH35PA	Amphenol Aerospace	Circular MIL Spec Connector 100P SIZE 23 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	60In Stock	₩391,969 ₩342,731.5 ₩303,598	Min.: 1 Mult.: 1	No	100 Position	Pin (Male)	23-35	Plugs	23	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 41P FM SZ 21 PIN PNL MNT D38999/24FG41PN Amphenol Aerospace 1: ₩291,309.8 90In Stock	Mfr. Part # D38999/24FG41PN Mouser Part # 654-D38999/24FG41PN	Amphenol Aerospace	Circular MIL Spec Connector 41P FM SZ 21 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	90In Stock	₩291,309.8 ₩255,304.8 ₩142,752	Min.: 1 Mult.: 1		41 Position	Pin (Male)	21-41	Receptacles	21	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 55P SIZE 17 JAM NUT RECEPTACLE PIN D38999/24WE35PA Amphenol Aerospace 1: ₩140,610 96In Stock	Mfr. Part # D38999/24WE35PA Mouser Part # 654-D38999/24WE35PA	Amphenol Aerospace	Circular MIL Spec Connector 55P SIZE 17 JAM NUT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	96In Stock	₩140,610 ₩123,079.5	Min.: 1 Mult.: 1	No	55 Position	Pin (Male)	17-35	Receptacles	17	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 11P FM SZ 21 PIN PNL MNT D38999/24WG11PA Amphenol Aerospace 1: ₩172,584.7 88In Stock	Mfr. Part # D38999/24WG11PA Mouser Part # 654-D38999/24WG11PA	Amphenol Aerospace	Circular MIL Spec Connector 11P FM SZ 21 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	88In Stock	₩172,584.7 ₩156,562.1 ₩152,982.8 ₩152,574.1 Quote Quote	Min.: 1 Mult.: 1	No	11 Position	Pin (Male)	21-11	Receptacles	21	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	23 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26WB98SB Amphenol Aerospace 1: ₩140,271.8 87In Stock	Mfr. Part # D38999/26WB98SB Mouser Part # 654-D38999/26WB98SB	Amphenol Aerospace	Circular MIL Spec Connector TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	87In Stock	₩140,271.8 ₩133,098.9 ₩127,983.5 ₩123,713.7 ₩112,327.3	Min.: 1 Mult.: 1	No	6 Position	Socket (Female)	11-98	Plugs	11	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 4P PLG SZ 21 PIN CBL MNT D38999/26WG75PN Amphenol Aerospace 1: ₩1,062,071.8 35In Stock 80Expected 11/17/2026	Mfr. Part # D38999/26WG75PN Mouser Part # 654-D38999/26WG75PN	Amphenol Aerospace	Circular MIL Spec Connector 4P PLG SZ 21 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	35In Stock 80Expected 11/17/2026	₩1,062,071.8 ₩737,857.1	Min.: 1 Mult.: 1	No	4 Position	Pin (Male)	21-75	Plugs	21	Straight	MIL-DTL-38999 III	Crimp	Cable	46 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13 D38999/20WC35PC Amphenol Aerospace 1: ₩91,330.3 110In Stock	Mfr. Part # D38999/20WC35PC Mouser Part # 654-D38999/20WC35PC	Amphenol Aerospace	Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	110In Stock	₩91,330.3 ₩74,842.6 ₩70,615 ₩67,796.6	Min.: 1 Mult.: 1	No	22 Position	Pin (Male)	13-35	Receptacles	13	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 61P RCPT SZ 25 PIN PNL MNT D38999/24FJ61PN Amphenol Aerospace 1: ₩320,621.2 90In Stock	Mfr. Part # D38999/24FJ61PN Mouser Part # 654-D38999/24FJ61PN	Amphenol Aerospace	Circular MIL Spec Connector 61P RCPT SZ 25 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	90In Stock	₩320,621.2 ₩253,923.7 ₩210,872.7 ₩146,965.5 View ₩142,160.1 Quote	Min.: 1 Mult.: 1		61 Position	Pin (Male)	25-61	Receptacles	25	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector 3P JAM NUT RECPT SZ 9 D38999/24WA98SB Amphenol Aerospace 1: ₩185,394.4 100In Stock	Mfr. Part # D38999/24WA98SB Mouser Part # 654-D38999/24WA98SB	Amphenol Aerospace	Circular MIL Spec Connector 3P JAM NUT RECPT SZ 9 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	100In Stock	₩185,394.4 ₩118,062.8	Min.: 1 Mult.: 1	No	3 Position	Socket (Female)	09-98	Receptacles	9	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 37P SIZE 15 PIN PANEL MOUNT D38999/24WD35PA Amphenol Aerospace 1: ₩153,701.4 125In Stock	Mfr. Part # D38999/24WD35PA Mouser Part # 654-D38999/24WD35PA	Amphenol Aerospace	Circular MIL Spec Connector 37P SIZE 15 PIN PANEL MOUNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	125In Stock	₩153,701.4 ₩108,832.5	Min.: 1 Mult.: 1	No	37 Position	Pin (Male)	15-35	Receptacles	15	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 22P RCPT SZ 13 PIN WL MNT D38999/20WC35PB Amphenol Aerospace 1: ₩110,171.3 126In Stock	Mfr. Part # D38999/20WC35PB Mouser Part # 654-D38999/20WC35PB	Amphenol Aerospace	Circular MIL Spec Connector 22P RCPT SZ 13 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	126In Stock	₩110,171.3 ₩92,795.8 ₩75,716.3	Min.: 1 Mult.: 1	No	22 Position	Pin (Male)	13-35	Receptacles	13	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 37P FM SZ 15 SKT WL MNT D38999/20WD35SB Amphenol Aerospace 1: ₩266,324.7 99In Stock	Mfr. Part # D38999/20WD35SB Mouser Part # 654-D38999/20WD35SB	Amphenol Aerospace	Circular MIL Spec Connector 37P FM SZ 15 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	99In Stock	₩266,324.7 ₩192,905.4	Min.: 1 Mult.: 1	No	37 Position	Socket (Female)	15-35	Receptacles	15	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector MS/TRI-START ALUMINUM D38999/26FD35PC Amphenol Aerospace 1: ₩356,739 88In Stock	Mfr. Part # D38999/26FD35PC Mouser Part # 654-D38999/26FD35PC	Amphenol Aerospace	Circular MIL Spec Connector MS/TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	88In Stock	₩356,739 ₩299,370.4 ₩196,823 ₩189,171	Min.: 1 Mult.: 1		37 Position	Pin (Male)	15-35	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 19P PLG SZ 15 PIN CBL MNT D38999/26WD19PA Amphenol Aerospace 1: ₩233,687.6 93In Stock	Mfr. Part # D38999/26WD19PA Mouser Part # 654-D38999/26WD19PA	Amphenol Aerospace	Circular MIL Spec Connector 19P PLG SZ 15 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	93In Stock	₩233,687.6 ₩171,217.8 ₩126,997.1	Min.: 1 Mult.: 1	No	19 Position	Pin (Male)	15-19	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum