Circular MIL Spec Connector – Mouser Luxembourg

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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 (EUR) 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 TRI-START ALUMINUM D38999/26FJ35PA Amphenol Aerospace 1: 150,99 € 98In Stock	Mfr. Part No. D38999/26FJ35PA Mouser Part No 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	150,99 € 130,37 € 127,50 € 121,80 € Quote Quote	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 128P RCPT SZ 25 PIN WL MNT D38999/20FJ35PA Amphenol Aerospace 1: 177,81 € 117In Stock	Mfr. Part No. D38999/20FJ35PA Mouser Part No 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	177,81 € 104,17 € 102,09 €	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 TRI-START ALUMINUM D38999/20WH35SA Amphenol Aerospace 1: 173,60 € 98In Stock	Mfr. Part No. D38999/20WH35SA Mouser Part No 654-D38999/20WH35SA	Amphenol Aerospace	Circular MIL Spec Connector TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	98In Stock	173,60 € 149,89 € 145,25 €	Min.: 1 Mult.: 1	No	100 Position	Socket (Female)	23-35	Receptacles	23	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 22P RCPT SZ 13 SKT PNL MNT D38999/24FC35SA Amphenol Aerospace 1: 78,30 € 188In Stock	Mfr. Part No. D38999/24FC35SA Mouser Part No 654-D38999/24FC35SA	Amphenol Aerospace	Circular MIL Spec Connector 22P RCPT SZ 13 SKT PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	188In Stock	78,30 €	Min.: 1 Mult.: 1		22 Position	Socket (Female)	13-35	Receptacles	13	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT D38999/26WG35SA Amphenol Aerospace 1: 240,33 € 101In Stock	Mfr. Part No. D38999/26WG35SA Mouser Part No 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	240,33 € 135,38 € Quote Quote	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 4P PLG SZ 21 PIN CBL MNT D38999/26WG75PN Amphenol Aerospace 1: 710,40 € 37In Stock 80Expected 10/16/2026	Mfr. Part No. D38999/26WG75PN Mouser Part No 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	37In Stock 80Expected 10/16/2026	710,40 € 487,80 €	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 5P RCPT SZ 15 SKT PNL MNT D38999/24FD5SN Amphenol Aerospace 1: 129,51 € 96In Stock	Mfr. Part No. D38999/24FD5SN Mouser Part No 654-D38999/24FD5SN	Amphenol Aerospace	Circular MIL Spec Connector 5P RCPT SZ 15 SKT PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	96In Stock	129,51 € 80,17 €	Min.: 1 Mult.: 1		5 Position	Socket (Female)	15-05	Receptacles	15	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	13 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 10P; SZ 13 ST PLUG STRT PLUG D38999/26FC98PA Amphenol Aerospace 1: 138,77 € 101In Stock	Mfr. Part No. D38999/26FC98PA Mouser Part No 654-D38999/26FC98PA	Amphenol Aerospace	Circular MIL Spec Connector 10P; SZ 13 ST PLUG STRT PLUG Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	101In Stock	138,77 € 89,47 € 79,72 € View Quote	Min.: 1 Mult.: 1		10 Position	Pin (Male)	13-98	Plugs	13	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 5P SIZE 15 WALL MOUNT RECEPTACLE SKT D38999/20FD5SN Amphenol Aerospace 1: 108,51 € 102In Stock	Mfr. Part No. D38999/20FD5SN Mouser Part No 654-D38999/20FD5SN	Amphenol Aerospace	Circular MIL Spec Connector 5P SIZE 15 WALL MOUNT RECEPTACLE SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	102In Stock	108,51 € 64,78 € 53,42 €	Min.: 1 Mult.: 1		5 Position	Socket (Female)	15-05	Receptacles	15	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 21P RCPT SZ 23 SKT WL MNT D38999/20FH21SN Amphenol Aerospace 1: 117,07 € 96In Stock	Mfr. Part No. D38999/20FH21SN Mouser Part No 654-D38999/20FH21SN	Amphenol Aerospace	Circular MIL Spec Connector 21P RCPT SZ 23 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	96In Stock	117,07 € 110,63 € 107,85 €	Min.: 1 Mult.: 1		21 Position	Socket (Female)	23-21	Receptacles	23	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector MS/TRI-START ALUMINUM D38999/26FD18SN Amphenol Aerospace 1: 96,16 € 109In Stock	Mfr. Part No. D38999/26FD18SN Mouser Part No 654-D38999/26FD18SN	Amphenol Aerospace	Circular MIL Spec Connector MS/TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	109In Stock	96,16 € 84,37 € 74,70 € 70,06 € 69,81 €	Min.: 1 Mult.: 1		18 Position	Socket (Female)	15-18	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 16P FM SZ 21 PIN WL MNT D38999/20FG16PN Amphenol Aerospace 1: 149,45 € 28In Stock	Mfr. Part No. D38999/20FG16PN Mouser Part No 654-D38999/20FG16PN	Amphenol Aerospace	Circular MIL Spec Connector 16P FM SZ 21 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	28In Stock	149,45 € 114,24 € 94,49 € 74,73 €	Min.: 1 Mult.: 1		16 Position	Pin (Male)	21-16	Receptacles	21	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	13 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 37P SIZE 15 JAM NUT RECEPTACLE PIN D38999/24FD35PB Amphenol Aerospace 1: 77,95 € 23In Stock	Mfr. Part No. D38999/24FD35PB Mouser Part No 654-D38999/24FD35PB	Amphenol Aerospace	Circular MIL Spec Connector 37P SIZE 15 JAM NUT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	23In Stock	77,95 € 77,75 € 77,74 € 74,27 € 72,32 €	Min.: 1 Mult.: 1		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 19P RCPT SZ 25 PIN WL MNT D38999/20FJ19PN Amphenol Aerospace 1: 114,39 € 115In Stock	Mfr. Part No. D38999/20FJ19PN Mouser Part No 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	115In Stock	114,39 € 104,98 € 100,94 € 97,57 € 92,18 €	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 37P RCPT SZ 15 PIN WL MNT D38999/20FD35PA Amphenol Aerospace 1: 59,59 € 102In Stock	Mfr. Part No. D38999/20FD35PA Mouser Part No 654-D38999/20FD35PA	Amphenol Aerospace	Circular MIL Spec Connector 37P RCPT SZ 15 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	102In Stock	59,59 €	Min.: 1 Mult.: 1		37 Position	Pin (Male)	15-35	Receptacles	15	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 66P PLG SZ 19 SKT CBL MNT D38999/26JF35SN Amphenol Aerospace 1: 161,77 € 73In Stock	Mfr. Part No. D38999/26JF35SN Mouser Part No 654-D38999/26JF35SN	Amphenol Aerospace	Circular MIL Spec Connector 66P PLG SZ 19 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	73In Stock	161,77 €	Min.: 1 Mult.: 1	No	66 Position	Socket (Female)	19-35	Plugs	19	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13 D38999/20WC35PC Amphenol Aerospace 1: 62,35 € 115In Stock	Mfr. Part No. D38999/20WC35PC Mouser Part No 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	115In Stock	62,35 € 47,39 € 44,82 €	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: 256,08 € 90In Stock	Mfr. Part No. D38999/24FJ61PN Mouser Part No 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	256,08 € 200,90 € 148,86 € 103,02 € View 94,87 € 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 24P PLG SZ 25 PIN CBL MNT D38999/26WJ24PN Amphenol Aerospace 1: 262,64 € 97In Stock	Mfr. Part No. D38999/26WJ24PN Mouser Part No 654-D38999/26WJ24PN	Amphenol Aerospace	Circular MIL Spec Connector 24P PLG SZ 25 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	97In Stock	262,64 € 205,88 € 177,82 € 103,42 € View Quote	Min.: 1 Mult.: 1	No	24 Position	Pin (Male)	25-24	Plugs	25	Straight	MIL-DTL-38999 III	Crimp	Cable	13 A, 23 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector 23P RCPT SZ 17 SCKT WL MNT D38999/20WE99SN Amphenol Aerospace 1: 96,25 € 97In Stock	Mfr. Part No. D38999/20WE99SN Mouser Part No 654-D38999/20WE99SN	Amphenol Aerospace	Circular MIL Spec Connector 23P RCPT SZ 17 SCKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	97In Stock	96,25 € 73,27 €	Min.: 1 Mult.: 1	No	23 Position	Socket (Female)	17-99	Receptacles	17	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	7.5 A, 13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 3P FM SZ 9 SKT PNL MNT D38999/24WA98SA Amphenol Aerospace 1: 57,38 € 98In Stock	Mfr. Part No. D38999/24WA98SA Mouser Part No 654-D38999/24WA98SA	Amphenol Aerospace	Circular MIL Spec Connector 3P FM SZ 9 SKT PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	98In Stock	57,38 € 48,62 € 43,23 € 41,19 € 29,97 €	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
Circular MIL Spec Connector 55P SIZE 17 STRAIGHT PLUG PIN D38999/26WE35PC Amphenol Aerospace 1: 90,95 € 35In Stock	Mfr. Part No. D38999/26WE35PC Mouser Part No 654-D38999/26WE35PC	Amphenol Aerospace	Circular MIL Spec Connector 55P SIZE 17 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	35In Stock	90,95 € 83,98 € 80,35 €	Min.: 1 Mult.: 1	No	55 Position	Pin (Male)	17-35	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P ST PLUG SOC SZ 17 D38999/26WE6BN Amphenol Aerospace 1: 68,21 € 93In Stock	Mfr. Part No. D38999/26WE6BN Mouser Part No 654-D38999/26WE6BN	Amphenol Aerospace	Circular MIL Spec Connector 6P ST PLUG SOC SZ 17 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	93In Stock	68,21 €	Min.: 1 Mult.: 1	No	6 Position	Without Socket Contacts	17-06	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	23 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P ST PLUG PIN SZ 11 D38999/26WB98PA Amphenol Aerospace 1: 113,61 € 90In Stock	Mfr. Part No. D38999/26WB98PA Mouser Part No 654-D38999/26WB98PA	Amphenol Aerospace	Circular MIL Spec Connector 6P ST PLUG PIN SZ 11 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	90In Stock	113,61 € 95,96 € 69,06 € 66,76 € 59,24 €	Min.: 1 Mult.: 1	No	6 Position	Pin (Male)	11-98	Plugs	11	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector 22P SIZE 13 STRAIGHT PLUG SKT D38999/26WC35SB Amphenol Aerospace 1: 76,62 € 110In Stock	Mfr. Part No. D38999/26WC35SB Mouser Part No 654-D38999/26WC35SB	Amphenol Aerospace	Circular MIL Spec Connector 22P SIZE 13 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	110In Stock	76,62 € 69,87 € 67,17 € 64,94 € 64,19 €	Min.: 1 Mult.: 1	No	22 Position	Socket (Female)	13-35	Plugs	13	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum	Each