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Self Locking Circular MIL Spec Connectors

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Types of Circular MIL Spec Connectors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Product	MIL Type	Shell Size	Shell Style
Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 1 M85049/85-12ZP01 Amphenol PCD 1: $56.09 40In Stock	Mfr. Part No. M85049/85-12ZP01 Mouser Part No 523-M85049/85-12ZP01	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 1 Learn More about Amphenol PCD backshells	Datasheet	40In Stock	$56.09 $48.64 $48.43 $48.12 $41.54	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	12	Straight
Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/88-25ZP03 Amphenol PCD 1: $75.42 25In Stock	Mfr. Part No. M85049/88-25ZP03 Mouser Part No 523-M85049/88-25ZP03	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	25In Stock	$75.42 $69.17 $67.49 $66.21 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26FJ35PA Amphenol Aerospace 1: $175.57 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	$175.57 $151.59 $146.15 $145.06	Min.: 1 Mult.: 1		Plugs	MIL-DTL-38999 III	25	Straight
Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/85-18ZP02 Amphenol PCD 1: $62.84 31In Stock	Mfr. Part No. M85049/85-18ZP02 Mouser Part No 523-M85049/85-18ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	31In Stock	$62.84 $54.50 $54.34 $53.26 View $52.53 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	18	Straight
Circular MIL Spec Connector 128P RCPT SZ 25 PIN WL MNT D38999/20FJ35PA Amphenol Aerospace 1: $207.84 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	$207.84 $174.26 $110.34 $109.58	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	25	Wall Mount
Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/88-25ZP02 Amphenol PCD 1: $75.44 47In Stock	Mfr. Part No. M85049/88-25ZP02 Mouser Part No 523-M85049/88-25ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	47In Stock	$75.44 $67.06 $66.86 $64.81 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Backshells Straight Shell size 13 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/88-13ZP02 Amphenol PCD 1: $59.68 41In Stock	Mfr. Part No. M85049/88-13ZP02 Mouser Part No 523-M85049/88-13ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 13 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	41In Stock	$59.68 $51.24 $48.34 $46.03 View $43.28 $43.02 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	13	Straight
Circular MIL Spec Backshells Straight Shell size 15 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/88-15ZP02 Amphenol PCD 1: $62.07 75In Stock	Mfr. Part No. M85049/88-15ZP02 Mouser Part No 523-M85049/88-15ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 15 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	75In Stock	$62.07 $54.52 $48.31 $48.29 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	15	Straight
Circular MIL Spec Connector 55P RCPT SZ 17 PIN PNL MNT D38999/24FE35PN Amphenol Aerospace 1: $95.67 342In Stock	Mfr. Part No. D38999/24FE35PN Mouser Part No 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	$95.67 $88.06 $83.79	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	17	Jam Nut
Circular MIL Spec Connector 8P FM SZ 13 PIN PNL MNT D38999/24WC8PN Amphenol Aerospace 1: $73.20 358In Stock	Mfr. Part No. D38999/24WC8PN Mouser Part No 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	$73.20 $64.66 $59.52 $56.12 Quote Quote	Min.: 1 Mult.: 1	No	Receptacles	MIL-DTL-38999 III	13	Jam Nut
Circular MIL Spec Connector TRI-START ALUMINUM D38999/20WH35SA Amphenol Aerospace 1: $201.86 96In 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	96In Stock	$201.86 $174.29 $169.35	Min.: 1 Mult.: 1	No	Receptacles	MIL-DTL-38999 III	23	Wall Mount
Circular MIL Spec Connector 79P SIZE 21 STRAIGHT PLUG SKT D38999/26WG35SA Amphenol Aerospace 1: $346.92 99In 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	99In Stock	$346.92 $320.50 $303.56 $183.09	Min.: 1 Mult.: 1	No	Plugs	MIL-DTL-38999 III	21	Straight
Circular MIL Spec Connector 4P PLG SZ 21 PIN CBL MNT D38999/26WG75PN Amphenol Aerospace 1: $753.00 35In Stock 80On Order	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	35In Stock 80On Order	$753.00 $523.60	Min.: 1 Mult.: 1	No	Plugs	MIL-DTL-38999 III	21	Straight
Circular MIL Spec Connector 79P RCPT SZ 21 PIN PNL MNT D38999/24FG35PN Amphenol Aerospace 1: $129.65 122In Stock	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	122In Stock	$129.65 $116.11 $111.32	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	21	Jam Nut
Circular MIL Spec Connector 11P SZ 21 WALL MOUNT SOCKET D38999/20FG11SA Amphenol Aerospace 1: $101.66 89In Stock	Mfr. Part No. D38999/20FG11SA Mouser Part No 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	$101.66	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	21	Wall Mount
Circular MIL Spec Connector 19P RCPT SZ 25 PIN WL MNT D38999/20FJ19PN Amphenol Aerospace 1: $100.15 108In 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	108In Stock	$100.15 $92.98	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	25	Wall Mount
Circular MIL Spec Strain Reliefs & Adapters 124 Backshell Strain Relief Clamp M85049/124S17Z Amphenol PCD 1: $40.43 39In Stock	Mfr. Part No. M85049/124S17Z Mouser Part No 523-M85049/124S17Z	Amphenol PCD	Circular MIL Spec Strain Reliefs & Adapters 124 Backshell Strain Relief Clamp Learn More about Amphenol PCD amphenol black zinc nickel backshells	Datasheet	39In Stock	$40.43 $40.42	Min.: 1 Mult.: 1		Strain Reliefs	MIL-DTL-38999 III, IV	17	Straight
Circular MIL Spec Connector 53P RCPT SZ 23 SKT WL MNT D38999/20FH53SN Amphenol Aerospace 1: $183.08 30In Stock	Mfr. Part No. D38999/20FH53SN Mouser Part No 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	$183.08 $151.08 $99.41	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	23	Wall Mount
Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/84-8ZP03 Amphenol PCD 1: $82.16 23In Stock	Mfr. Part No. M85049/84-8ZP03 Mouser Part No 523-M85049/84-8ZP03	Amphenol PCD	Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	23In Stock	$82.16 $73.05 $73.04 $69.21 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	8	90 Deg
Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 1 M85049/85-14ZP01 Amphenol PCD 1: $58.25 47In Stock	Mfr. Part No. M85049/85-14ZP01 Mouser Part No 523-M85049/85-14ZP01	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 1 Learn More about Amphenol PCD backshells	Datasheet	47In Stock	$58.25 $50.52 $50.35 $43.13 Quote Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	14	Straight
Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/87-08ZP03 Amphenol PCD 1: $82.12 25In Stock	Mfr. Part No. M85049/87-08ZP03 Mouser Part No 523-M85049/87-08ZP03	Amphenol PCD	Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	25In Stock	$82.12 $73.00 $72.99 $72.98 View $69.15 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	8	90 Deg
Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/82-28ZP02 Amphenol PCD 1: $80.51 23In Stock	Mfr. Part No. M85049/82-28ZP02 Mouser Part No 523-M85049/82-28ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	23In Stock	$80.51 $71.64 $71.63 $62.88 Quote Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	28	Straight
Circular MIL Spec Connector TRI-START ALUMINUM D38999/26FB35SB Amphenol Aerospace 1: $123.73 96In Stock 3Expected 09/11/2026	Mfr. Part No. D38999/26FB35SB Mouser Part No 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 09/11/2026	$123.73 $115.49	Min.: 1 Mult.: 1		Plugs	MIL-DTL-38999 III	11	Straight
Circular MIL Spec Connector 55P SIZE 23 WALL MOUNT RECEPTACLE PIN D38999/20FH55PN Amphenol Aerospace 1: $169.41 16In Stock	Mfr. Part No. D38999/20FH55PN Mouser Part No 654-D38999/20FH55PN	Amphenol Aerospace	Circular MIL Spec Connector 55P SIZE 23 WALL MOUNT RECEPTACLE PIN Learn More about Amphenol Aerospace amphenol mil dtl 38999 iii connectors	Datasheet	16In Stock	$169.41 $161.75 $161.71	Min.: 1 Mult.: 1		Receptacles	MIL-DTL-38999 III	23	Wall Mount
Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 2 M85049/82-12ZP02 Amphenol PCD 1: $58.69 15In Stock	Mfr. Part No. M85049/82-12ZP02 Mouser Part No 523-M85049/82-12ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 12 Black Zinc Nickel w/ Exposed Nickel Entry Size 2 Learn More about Amphenol PCD backshells	Datasheet	15In Stock	$58.69 $50.90 $49.74 $48.55 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	12	Straight