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 (PEN) 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 22P SZ 13 PLUG CBL MNT PIN D38999/26JC35HN Amphenol Aerospace 1: S/ 1,180.67 2In Stock	Mfr. Part # D38999/26JC35HN Mouser Part # 654-D38999/26JC35HN	Amphenol Aerospace	Circular MIL Spec Connector 22P SZ 13 PLUG CBL MNT PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	2In Stock	S/ 1,180.67	Min.: 1 Mult.: 1	No	22 Position	Pin (Male)	13-35	Plugs	13	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 21P ST PLUG SOC SZ 23 D38999/26FH21SN Amphenol Aerospace 1: S/ 465.70 89In Stock 100Expected 1/28/2027	Mfr. Part # D38999/26FH21SN Mouser Part # 654-D38999/26FH21SN	Amphenol Aerospace	Circular MIL Spec Connector 21P ST PLUG SOC SZ 23 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	89In Stock 100Expected 1/28/2027	S/ 465.70 S/ 427.44 S/ 403.69 S/ 387.42	Min.: 1 Mult.: 1		21 Position	Socket (Female)	23-21	Plugs	23	Straight	MIL-DTL-38999 III	Crimp	Cable	13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 4P SIZE 13 WALL MOUNT RECEPTACLE PIN D38999/20JC4PN Amphenol Aerospace 1: S/ 528.33 35In Stock	Mfr. Part # D38999/20JC4PN Mouser Part # 654-D38999/20JC4PN	Amphenol Aerospace	Circular MIL Spec Connector 4P SIZE 13 WALL MOUNT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	35In Stock	S/ 528.33 View S/ 422.69 S/ 352.27	Min.: 1 Mult.: 1	No	4 Position	Pin (Male)	13-04	Receptacles	13	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	13 A	Gold	Copper Alloy	Composite 38999	Each
Circular MIL Spec Connector 55P SIZE 17 STRAIGHT PLUG PIN D38999/26JE35PA Amphenol Aerospace 1: S/ 522.26 71In Stock	Mfr. Part # D38999/26JE35PA Mouser Part # 654-D38999/26JE35PA	Amphenol Aerospace	Circular MIL Spec Connector 55P SIZE 17 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	71In Stock	S/ 522.26 S/ 368.35 S/ 367.22	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	Composite 38999
Circular MIL Spec Connector 4P jam nut soc sz 13 D38999/24FC4SN Amphenol Aerospace 1: S/ 510.85 64In Stock 42Expected 1/27/2027	Mfr. Part # D38999/24FC4SN Mouser Part # 654-D38999/24FC4SN	Amphenol Aerospace	Circular MIL Spec Connector 4P jam nut soc sz 13 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	64In Stock 42Expected 1/27/2027	S/ 510.85 S/ 510.81 S/ 98.21 S/ 96.57 Quote Quote	Min.: 1 Mult.: 1		4 Position	Socket (Female)	13-04	Receptacles	13	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	13 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P PLG SZ 17 PIN CBL MNT D38999/26JE6PN Amphenol Aerospace 1: S/ 607.04 50In Stock	Mfr. Part # D38999/26JE6PN Mouser Part # 654-D38999/26JE6PN	Amphenol Aerospace	Circular MIL Spec Connector 6P PLG SZ 17 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	50In Stock	S/ 607.04 S/ 545.81 S/ 438.72	Min.: 1 Mult.: 1	No	6 Position	Pin (Male)	17-06	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	23 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26KA98PN Amphenol Aerospace 1: S/ 586.64 50In Stock	Mfr. Part # D38999/26KA98PN Mouser Part # 654-D38999/26KA98PN	Amphenol Aerospace	Circular MIL Spec Connector TRI-START ALUMINUM Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	50In Stock	S/ 586.64 S/ 317.94 S/ 309.92	Min.: 1 Mult.: 1		3 Position	Pin (Male)	09-98	Plugs	9	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	Stainless 38999
Circular MIL Spec Connector 22P ST PLUG PIN SZ 13 D38999/26MC35PB Amphenol Aerospace 1: S/ 508.98 15In Stock	Mfr. Part # D38999/26MC35PB Mouser Part # 654-D38999/26MC35PB	Amphenol Aerospace	Circular MIL Spec Connector 22P ST PLUG PIN SZ 13 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	15In Stock	S/ 508.98 View S/ 407.27 S/ 345.89 Quote	Min.: 1 Mult.: 1		22 Position	Pin (Male)	13-35	Plugs	13	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 12P PLG SZ 15 SKT CBL MNT D38999/26MD97SN Amphenol Aerospace 1: S/ 588.47 137In Stock	Mfr. Part # D38999/26MD97SN Mouser Part # 654-D38999/26MD97SN	Amphenol Aerospace	Circular MIL Spec Connector 12P PLG SZ 15 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	137In Stock	S/ 588.47 S/ 366.21	Min.: 1 Mult.: 1		12 Position	Socket (Female)	15-97	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A, 13 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 8P PLG SZ 13 PIN CBL MNT D38999/26WC8PA Amphenol Aerospace 1: S/ 252.04 100In Stock	Mfr. Part # D38999/26WC8PA Mouser Part # 654-D38999/26WC8PA	Amphenol Aerospace	Circular MIL Spec Connector 8P PLG SZ 13 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	100In Stock	S/ 252.04 S/ 166.25 Quote Quote	Min.: 1 Mult.: 1	No	8 Position	Pin (Male)	13-08	Plugs	13	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 10P; SZ 13 ST PLUG STRT PLUG D38999/26FC98PA Amphenol Aerospace 1: S/ 246.16 94In Stock	Mfr. Part # D38999/26FC98PA Mouser Part # 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	94In Stock	S/ 246.16 S/ 230.71 S/ 225.57 S/ 222.85 View S/ 150.09 S/ 144.29 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 STRAIGHT PLUG; TV-R D38999/20JD35PN Amphenol Aerospace 1: S/ 216.42 55In Stock	Mfr. Part # D38999/20JD35PN Mouser Part # 654-D38999/20JD35PN	Amphenol Aerospace	Circular MIL Spec Connector STRAIGHT PLUG; TV-R Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	55In Stock	S/ 216.42 S/ 189.18 S/ 181.00 S/ 175.16 View S/ 168.39 S/ 159.94	Min.: 1 Mult.: 1	No	37 Position	Pin (Male)	15-35	Receptacles	15	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	Composite 38999
Circular MIL Spec Connector 13P SIZE 11 STRAIGHT PLUG PIN D38999/26FB35PD Amphenol Aerospace 1: S/ 262.04 89In Stock	Mfr. Part # D38999/26FB35PD Mouser Part # 654-D38999/26FB35PD	Amphenol Aerospace	Circular MIL Spec Connector 13P SIZE 11 STRAIGHT PLUG PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	89In Stock	S/ 262.04 S/ 262.00 S/ 261.97 S/ 261.93 View S/ 238.26 Quote	Min.: 1 Mult.: 1		13 Position	Pin (Male)	11-35	Plugs	11	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P PLG SZ 9 SKT CBL MNT D38999/26JA35SN Amphenol Aerospace 1: S/ 337.25 81In Stock	Mfr. Part # D38999/26JA35SN Mouser Part # 654-D38999/26JA35SN	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	81In Stock	S/ 337.25 S/ 297.89 S/ 279.75 S/ 274.15	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	Composite 38999
Circular MIL Spec Connector 55P PLG SZ 17 PIN CBL MNT D38999/26ME35PN Amphenol Aerospace 1: S/ 590.92 70In Stock	Mfr. Part # D38999/26ME35PN Mouser Part # 654-D38999/26ME35PN	Amphenol Aerospace	Circular MIL Spec Connector 55P PLG SZ 17 PIN CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	70In Stock	S/ 590.92 S/ 466.91 S/ 458.26 View S/ 279.64 Quote	Min.: 1 Mult.: 1		55 Position	Pin (Male)	17-35	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999	Bulk
Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT D38999/24FE35PA Amphenol Aerospace 1: S/ 248.11 48In Stock	Mfr. Part # D38999/24FE35PA Mouser Part # 654-D38999/24FE35PA	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	48In Stock	S/ 248.11 S/ 221.25 S/ 215.88 Quote Quote	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 32P RCPT SZ 19 SKT PNL MNT D38999/24FF32SN Amphenol Aerospace 1: S/ 305.41 95In Stock	Mfr. Part # D38999/24FF32SN Mouser Part # 654-D38999/24FF32SN	Amphenol Aerospace	Circular MIL Spec Connector 32P RCPT SZ 19 SKT PNL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	95In Stock	S/ 305.41 S/ 270.88 S/ 232.77 S/ 222.26 View S/ 203.19 Quote	Min.: 1 Mult.: 1		32 Position	Socket (Female)	19-32	Receptacles	19	Jam Nut	MIL-DTL-38999 III	Crimp	Panel	7.5 A	Gold	Copper Alloy	38999 Aluminum
Circular MIL Spec Connector 6P PLG SZ 11 SKT CBL MNT D38999/26KB98SA Amphenol Aerospace 1: S/ 299.33 34In Stock	Mfr. Part # D38999/26KB98SA Mouser Part # 654-D38999/26KB98SA	Amphenol Aerospace	Circular MIL Spec Connector 6P PLG SZ 11 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	34In Stock	S/ 299.33 S/ 294.20	Min.: 1 Mult.: 1		6 Position	Socket (Female)	11-98	Plugs	11	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	Stainless 38999
Circular MIL Spec Connector 61P PLG SZ 25 SKT CBL MNT D38999/26FJ61SA Amphenol Aerospace 1: S/ 1,443.14 37In Stock	Mfr. Part # D38999/26FJ61SA Mouser Part # 654-D38999/26FJ61SA	Amphenol Aerospace	Circular MIL Spec Connector 61P PLG SZ 25 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	37In Stock	S/ 1,443.14 S/ 888.07 S/ 693.06 S/ 666.01 View Quote	Min.: 1 Mult.: 1		61 Position	Socket (Female)	25-61	Plugs	25	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	38999 Aluminum	Each
Circular MIL Spec Connector 26P PLG SZ 17 SKT CBL MNT D38999/26JE26SA Amphenol Aerospace 1: S/ 533.54 20In Stock	Mfr. Part # D38999/26JE26SA Mouser Part # 654-D38999/26JE26SA	Amphenol Aerospace	Circular MIL Spec Connector 26P PLG SZ 17 SKT CBL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	20In Stock	S/ 533.54 S/ 495.01 S/ 478.54	Min.: 1 Mult.: 1	No	26 Position	Socket (Female)	17-26	Plugs	17	Straight	MIL-DTL-38999 III	Crimp	Cable	7.5 A	Gold	Copper Alloy	Composite 38999	Each
Circular MIL Spec Connector 37P SIZE 15 STRAIGHT PLUG SKT D38999/26JD35JN Amphenol Aerospace 1: S/ 1,249.88 6In Stock	Mfr. Part # D38999/26JD35JN Mouser Part # 654-D38999/26JD35JN	Amphenol Aerospace	Circular MIL Spec Connector 37P SIZE 15 STRAIGHT PLUG SKT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	6In Stock	S/ 1,249.88 View S/ 1,154.40 S/ 1,113.18	Min.: 1 Mult.: 1	No	37 Position	Socket (Female)	15-35	Plugs	15	Straight	MIL-DTL-38999 III	Crimp	Cable	5 A	Gold	Copper Alloy	Composite 38999	Each
Circular MIL Spec Connector 61P RCPT SZ 25 SCKT WL MNT D38999/20JJ61SN Amphenol Aerospace 1: S/ 660.71 22In Stock	Mfr. Part # D38999/20JJ61SN Mouser Part # 654-D38999/20JJ61SN	Amphenol Aerospace	Circular MIL Spec Connector 61P RCPT SZ 25 SCKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	22In Stock	S/ 660.71 S/ 582.28 S/ 471.30	Min.: 1 Mult.: 1	No	61 Position	Socket (Female)	25-61	Receptacles	25	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	7.5 A	Gold	Copper Alloy	Composite 38999	Each
Circular MIL Spec Connector 53P ST PLUG SOC SZ 23 D38999/26FH53SA Amphenol Aerospace 1: S/ 968.88 9In Stock	Mfr. Part # D38999/26FH53SA Mouser Part # 654-D38999/26FH53SA	Amphenol Aerospace	Circular MIL Spec Connector 53P ST PLUG SOC SZ 23 Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	9In Stock	S/ 968.88 S/ 546.86 S/ 527.28 S/ 523.31	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	Each
Circular MIL Spec Connector 6P RCPT SZ 9 SKT WL MNT D38999/20JA35SN Amphenol Aerospace 1: S/ 479.05 42In Stock	Mfr. Part # D38999/20JA35SN Mouser Part # 654-D38999/20JA35SN	Amphenol Aerospace	Circular MIL Spec Connector 6P RCPT SZ 9 SKT WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	42In Stock	S/ 479.05 S/ 399.21 View S/ 340.87 Quote	Min.: 1 Mult.: 1	No	6 Position	Socket (Female)	09-35	Receptacles	9	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	Composite 38999	Bulk
Circular MIL Spec Connector 22P FM SZ 13 PIN WL MNT D38999/20MC35PA Amphenol Aerospace 1: S/ 521.63 13In Stock	Mfr. Part # D38999/20MC35PA Mouser Part # 654-D38999/20MC35PA	Amphenol Aerospace	Circular MIL Spec Connector 22P FM SZ 13 PIN WL MNT Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	13In Stock	S/ 521.63 S/ 461.30 View S/ 369.05 S/ 356.59	Min.: 1 Mult.: 1		22 Position	Pin (Male)	13-35	Receptacles	13	Wall Mount	MIL-DTL-38999 III	Crimp	Wall Mount	5 A	Gold	Copper Alloy	Composite 38999