Circular MIL Spec Connector

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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 37P SIZE 15 JAM NUT RECEPTACLE SKT D38999/24FD35SA Amphenol Aerospace 1: 91,23 € 97In Stock	Mfr. Part No. D38999/24FD35SA Mouser Part No 654-D38999/24FD35SA	Amphenol Aerospace	Circular MIL Spec Connector 37P SIZE 15 JAM NUT RECEPTACLE SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	97In Stock	91,23 €	Min.: 1 Mult.: 1		37 Position	Socket (Female)	15-35	Receptacles	15	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 12P ST PLUG SOC SZ 15 D38999/26WD97SA Amphenol Aerospace 1: 109,92 € 29In Stock	Mfr. Part No. D38999/26WD97SA Mouser Part No 654-D38999/26WD97SA	Amphenol Aerospace	Circular MIL Spec Connector 12P ST PLUG SOC SZ 15 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	29In Stock	109,92 € 106,54 € 89,72 € 77,16 €	Min.: 1 Mult.: 1	No	12 Position	Socket (Female)	15-97	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A, 13 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 53P SIZE 23 STRAIGHT PLUG SKT D38999/26WH53SN Amphenol Aerospace 1: 179,63 € 98In Stock	Mfr. Part No. D38999/26WH53SN Mouser Part No 654-D38999/26WH53SN	Amphenol Aerospace	Circular MIL Spec Connector 53P SIZE 23 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	98In Stock	179,63 € 138,25 € 132,90 € 114,78 € View Quote	Min.: 1 Mult.: 1		53 Position	Socket (Female)	23-53	Plugs	23	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 22P WALL MOUNT RECEP PIN CRIMP SZ 13 D38999/20WC35PC Amphenol Aerospace 1: 57,88 € 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	57,88 € 48,63 € 45,78 € 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 79P RCPT SZ 21 PIN PNL MNT D38999/24FG35PN Amphenol Aerospace 1: 152,34 € 78In Stock 47Expected 19/10/2026	Mfr. Part No. D38999/24FG35PN Mouser Part No 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	78In Stock 47Expected 19/10/2026	152,34 € 133,79 € 109,66 € 107,54 €	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 61P RCPT SZ 25 PIN PNL MNT D38999/24FJ61PN Amphenol Aerospace 1: 180,53 € 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	180,53 € 149,50 € 121,57 € 103,17 €	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 79P SIZE 21 STRAIGHT PLUG SKT D38999/26FG35SB Amphenol Aerospace 1: 448,09 € 28In Stock	Mfr. Part No. D38999/26FG35SB Mouser Part No 654-D38999/26FG35SB	Amphenol Aerospace	Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	28In Stock	448,09 € 399,46 € 210,41 € View Quote	Min.: 1 Mult.: 1		79 Position	Socket (Female)	21-35	Plugs	21	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 53P PLG SZ 23 PIN CBL MNT D38999/26FH53PN Amphenol Aerospace 1: 186,20 € 85In Stock	Mfr. Part No. D38999/26FH53PN Mouser Part No 654-D38999/26FH53PN	Amphenol Aerospace	Circular MIL Spec Connector 53P PLG SZ 23 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	85In Stock	186,20 € 151,28 € 127,40 € 121,94 €	Min.: 1 Mult.: 1		53 Position	Pin (Male)	23-53	Plugs	23	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 32P PLG SZ 19 PIN CBL MNT D38999/26WF32PA Amphenol Aerospace 1: 126,95 € 15In Stock	Mfr. Part No. D38999/26WF32PA Mouser Part No 654-D38999/26WF32PA	Amphenol Aerospace	Circular MIL Spec Connector 32P PLG SZ 19 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	15In Stock	126,95 € 92,42 € 88,86 € 85,89 € 81,15 €	Min.: 1 Mult.: 1	No	32 Position	Pin (Male)	19-32	Plugs	19	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 11P RCPT PIN D38999/26WG11PA Amphenol Aerospace 1: 223,75 € 96In Stock	Mfr. Part No. D38999/26WG11PA Mouser Part No 654-D38999/26WG11PA	Amphenol Aerospace	Circular MIL Spec Connector 11P RCPT PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	96In Stock	223,75 € 181,80 € 153,10 € 132,22 € 76,87 €	Min.: 1 Mult.: 1	No	11 Position	Pin (Male)	21-11	Plugs	21	Straight	MIL-DTL-38999 III	Crimp	Cable	23 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 24P PLG SZ 25 PIN CBL MNT D38999/26WJ24PN Amphenol Aerospace 1: 300,92 € 94In 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	94In Stock	300,92 € 244,50 € 205,89 € 177,82 € View 112,49 € 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 55P RCPT SZ 17 SKT WL MNT D38999/20WE35SC Amphenol Aerospace 1: 142,14 € 26In Stock	Mfr. Part No. D38999/20WE35SC Mouser Part No 654-D38999/20WE35SC	Amphenol Aerospace	Circular MIL Spec Connector 55P RCPT SZ 17 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	26In Stock	142,14 € 105,81 €	Min.: 1 Mult.: 1	No	55 Position	Socket (Female)	17-35	Receptacles	17	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P PLG SZ 9 SKT CBL MNT D38999/26WA35SD Amphenol Aerospace 1: 69,97 € 76In Stock 15Expected 30/10/2026	Mfr. Part No. D38999/26WA35SD Mouser Part No 654-D38999/26WA35SD	Amphenol Aerospace	Circular MIL Spec Connector 6P PLG SZ 9 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	76In Stock 15Expected 30/10/2026	69,97 € 62,20 € 59,80 € 57,81 € 54,62 €	Min.: 1 Mult.: 1	No	6 Position	Socket (Female)	09-35	Plugs	9	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 61P SIZE 25 STRAIGHT PLUG PIN D38999/26WJ61PA Amphenol Aerospace 1: 120,92 € 83In Stock	Mfr. Part No. D38999/26WJ61PA Mouser Part No 654-D38999/26WJ61PA	Amphenol Aerospace	Circular MIL Spec Connector 61P SIZE 25 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	83In Stock	120,92 € 110,97 € 106,71 € 103,14 € 97,45 €	Min.: 1 Mult.: 1	No	61 Position	Pin (Male)	25-61	Plugs	25	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum	Bulk
Circular MIL Spec Connector 39P FM SZ 21 PIN WL MNT D38999/20FG39PN Amphenol Aerospace 1: 89,13 € 93In Stock	Mfr. Part No. D38999/20FG39PN Mouser Part No 654-D38999/20FG39PN	Amphenol Aerospace	Circular MIL Spec Connector 39P FM SZ 21 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	93In Stock	89,13 € 80,26 € 78,09 € 75,53 €	Min.: 1 Mult.: 1		39 Position	Pin (Male)	21-39	Receptacles	21	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	7.5 A, 13 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 19P RCPT SZ 15 PIN PNL MNT D38999/24WD19PA Amphenol Aerospace 1: 112,49 € 82In Stock	Mfr. Part No. D38999/24WD19PA Mouser Part No 654-D38999/24WD19PA	Amphenol Aerospace	Circular MIL Spec Connector 19P RCPT SZ 15 PIN PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	82In Stock	112,49 € 67,16 €	Min.: 1 Mult.: 1	No	19 Position	Pin (Male)	15-19	Receptacles	15	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P ST PLUG PIN SZ 11 D38999/26WB98PA Amphenol Aerospace 1: 97,07 € 88In 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	88In Stock	97,07 € 73,24 € 69,04 € 66,74 € 63,06 €	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 6P ST PLUG PIN SZ 17 D38999/26WE6AN Amphenol Aerospace 1: 96,57 € 100In Stock	Mfr. Part No. D38999/26WE6AN Mouser Part No 654-D38999/26WE6AN	Amphenol Aerospace	Circular MIL Spec Connector 6P ST PLUG PIN SZ 17 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	100In Stock	96,57 € 88,06 € 84,68 € 81,85 € 77,33 €	Min.: 1 Mult.: 1	No	6 Position	Without Pin Contacts	17-06	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	23 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 22P RCPT SZ 13 PIN WL MNT D38999/20WC35PB Amphenol Aerospace 1: 61,76 € 126In Stock	Mfr. Part No. D38999/20WC35PB Mouser Part No 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	61,76 € 53,54 € 50,69 € 49,18 € 49,17 €	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 MS/TRI-START ALUMINUM D38999/26FD35PC Amphenol Aerospace 1: 139,83 € 88In Stock	Mfr. Part No. D38999/26FD35PC Mouser Part No 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	139,83 € 122,72 € 104,30 €	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: 122,49 € 95In Stock	Mfr. Part No. D38999/26WD19PA Mouser Part No 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	95In Stock	122,49 € 86,78 € 77,23 €	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
Circular MIL Spec Connector 11P RCPT SZ 19 SKT WL MNT D38999/20WF11SN Amphenol Aerospace 1: 81,68 € 83In Stock	Mfr. Part No. D38999/20WF11SN Mouser Part No 654-D38999/20WF11SN	Amphenol Aerospace	Circular MIL Spec Connector 11P RCPT SZ 19 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	83In Stock	81,68 € 74,36 € 68,54 € 68,28 €	Min.: 1 Mult.: 1	No	11 Position	Socket (Female)	19-11	Receptacles	19	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 12P SZ 15 PANEL MOUNT PIN D38999/24WD97PA Amphenol Aerospace 1: 119,41 € 17In Stock	Mfr. Part No. D38999/24WD97PA Mouser Part No 654-D38999/24WD97PA	Amphenol Aerospace	Circular MIL Spec Connector 12P SZ 15 PANEL MOUNT PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	17In Stock	119,41 € 101,84 € 99,43 € View Quote	Min.: 1 Mult.: 1	No	12 Position	Pin (Male)	15-97	Receptacles	15	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A, 13 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 11P FM SZ 21 PIN PNL MNT D38999/24WG11PA Amphenol Aerospace 1: 122,61 € 88In Stock	Mfr. Part No. D38999/24WG11PA Mouser Part No 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	122,61 € 112,16 € 102,28 € 96,44 € View 95,68 € 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 23P SZ 17 PLUG CBL MNT PIN D38999/26FE99PN Amphenol Aerospace 1: 105,79 € 86In Stock	Mfr. Part No. D38999/26FE99PN Mouser Part No 654-D38999/26FE99PN	Amphenol Aerospace	Circular MIL Spec Connector 23P SZ 17 PLUG CBL MNT PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	86In Stock	105,79 € 94,90 € 88,24 € 82,31 € View 78,66 € Quote	Min.: 1 Mult.: 1		23 Position	Pin (Male)	17-99	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A, 13 A	Gold	Copper Alloy	38999 Aluminum