Circular MIL Spec Connectors

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Backshells

Amphenol PCD Backshells offer strain relief, environmental protection, and 360° EMI/RFI shielding at the termination area of virtually any circular connector. These connectors feature a base material constructed of aluminum alloy, stainless steel, brass, or composite and a variety of finishes such as black zinc nickel, cadmium, electroless nickel, anodized black, passivated, and more. Amphenol PCD Backshells have custom designs available and meet or exceed RoHS/REACH compliance standards. Available in both military specifications and commercial types for any application, these backshells meet the Society of Automotive Engineers (SAE) AS85049 standard.

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Types of Circular MIL Spec Connectors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (INR) 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: ₹5,358.84 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	₹5,358.84 ₹4,647.07 ₹4,581.14 ₹4,516.18 ₹3,964.91	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 2 M85049/88-25ZP02 Amphenol PCD 1: ₹7,207.54 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	₹7,207.54 ₹6,406.91 ₹6,345.77 ₹6,132.71 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/85-18ZP02 Amphenol PCD 1: ₹6,003.73 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	₹6,003.73 ₹5,206.93 ₹5,191.64 ₹5,088.46 View ₹5,018.72 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	18	Straight
Circular MIL Spec Backshells Straight Shell size 25 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/88-25ZP03 Amphenol PCD 1: ₹7,205.63 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	₹7,205.63 ₹6,405.00 ₹6,261.69 ₹6,096.41 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Backshells 88 Backshell Band Lock M85049/88-9N03 Amphenol PCD 1: ₹3,307.59 3,521In Stock 275Expected 20-10-2026	Mfr. Part No. M85049/88-9N03 Mouser Part No 523-85049/88-9N03	Amphenol PCD	Circular MIL Spec Backshells 88 Backshell Band Lock Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	3,521In Stock 275Expected 20-10-2026	₹3,307.59 ₹3,104.09 ₹2,863.33 ₹2,837.54 View ₹2,758.24 ₹2,713.34 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	9
Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23 M85049/89-23W03 Amphenol PCD 1: ₹6,985.88 570In Stock	Mfr. Part No. M85049/89-23W03 Mouser Part No 523-85049/89-23W03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPTR CAD SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	570In Stock	₹6,985.88 ₹6,414.56 ₹6,227.30 ₹5,864.25 View ₹5,036.87 Quote	Min.: 1 Mult.: 1	No	Band Lock Adapters	MIL-DTL-38999 III, IV	23
Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 3 M85049/82-08ZP03 Amphenol PCD 1: ₹5,232.73 18In Stock	Mfr. Part No. M85049/82-08ZP03 Mouser Part No 523-M85049/82-08ZP03	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry Size 3 Learn More about Amphenol PCD backshells	Datasheet	18In Stock	₹5,232.73 ₹4,537.19 ₹4,534.33 ₹4,533.37 View ₹3,984.02 ₹3,869.37 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	8	Straight
Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/84-8ZP03 Amphenol PCD 1: ₹7,849.57 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	₹7,849.57 ₹6,977.29 ₹6,548.31 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: ₹5,565.21 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	₹5,565.21 ₹4,826.68 ₹4,760.76 ₹4,694.84 ₹4,117.77	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	14	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 M85049/1913N04 Amphenol PCD 1: ₹5,457.24 180In Stock	Mfr. Part No. M85049/1913N04 Mouser Part No 523-85049/1913N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	180In Stock	₹5,457.24 ₹5,035.91 ₹4,530.51 ₹4,386.24 View ₹3,988.80 Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	13	Straight
Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15 M85049/89-15N02 Amphenol PCD 1: ₹5,547.05 35In Stock	Mfr. Part No. M85049/89-15N02 Mouser Part No 523-85049/89-15N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	35In Stock	₹5,547.05 ₹5,025.40 ₹4,774.13 ₹4,734.01 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	15
Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/82-16ZP03 Amphenol PCD 1: ₹6,000.87 25In Stock	Mfr. Part No. M85049/82-16ZP03 Mouser Part No 523-M85049/82-16ZP03	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 16 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	25In Stock	₹6,000.87 ₹5,204.06 ₹4,874.45 ₹4,838.15 View ₹4,570.63 ₹4,437.83	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	16	Straight
Circular MIL Spec Backshells Straight Shell size 28 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/82-28ZP02 Amphenol PCD 1: ₹7,691.93 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	₹7,691.93 ₹6,840.66 ₹6,839.71 ₹6,005.64 Quote Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	28	Straight
Circular MIL Spec Backshells 90 Degrees Shell size 8 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/87-08ZP03 Amphenol PCD 1: ₹7,845.74 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	₹7,845.74 ₹6,974.42 ₹6,953.40 ₹6,126.98 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	8	90 Deg
Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/85-14ZP02 Amphenol PCD 1: ₹5,565.21 25In Stock	Mfr. Part No. M85049/85-14ZP02 Mouser Part No 523-M85049/85-14ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 14 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	25In Stock	₹5,565.21 ₹4,826.68 ₹4,760.76 ₹4,693.88 ₹4,117.77	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	14	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21 M85049/1921N05 Amphenol PCD 1: ₹6,495.76 32In Stock	Mfr. Part No. M85049/1921N05 Mouser Part No 523-85049/1921N05	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	32In Stock	₹6,495.76 ₹5,827.94 ₹5,215.53 ₹5,050.24 View ₹4,780.82 Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	21	Straight
Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/82-18ZP02 Amphenol PCD 1: ₹6,211.06 11In Stock	Mfr. Part No. M85049/82-18ZP02 Mouser Part No 523-M85049/82-18ZP02	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	11In Stock	₹6,211.06 ₹5,386.55 ₹5,264.25 ₹5,122.85 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	18	Straight
Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/82-18ZP03 Amphenol PCD 1: ₹6,211.06 24In Stock	Mfr. Part No. M85049/82-18ZP03 Mouser Part No 523-M85049/82-18ZP03	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 18 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	24In Stock	₹6,211.06 ₹5,386.55 ₹4,876.36	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	18	Straight
Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3 M85049/82-22ZP03 Amphenol PCD 1: ₹6,891.30 14In Stock	Mfr. Part No. M85049/82-22ZP03 Mouser Part No 523-M85049/82-22ZP03	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 22 Black Zinc Nickel w/ Exposed Nickel Entry 3 Learn More about Amphenol PCD backshells	Datasheet	14In Stock	₹6,891.30 ₹5,976.03 ₹5,840.36 ₹5,668.39 View Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	22	Straight
Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/88-19ZP02 Amphenol PCD 1: ₹6,211.06 10In Stock	Mfr. Part No. M85049/88-19ZP02 Mouser Part No 523-M85049/88-19ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 19 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	10In Stock	₹6,211.06 ₹5,386.55 ₹4,876.36 Quote Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	19	Straight
Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/85-24ZP02 Amphenol PCD 1: ₹7,095.76 4In Stock	Mfr. Part No. M85049/85-24ZP02 Mouser Part No 523-M85049/85-24ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 24 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	4In Stock	₹7,095.76 ₹6,307.55 ₹5,633.99	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	24	Straight
Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2 M85049/88-21ZP02 Amphenol PCD 1: ₹6,427.93 23In Stock	Mfr. Part No. M85049/88-21ZP02 Mouser Part No 523-M85049/88-21ZP02	Amphenol PCD	Circular MIL Spec Backshells Straight Shell size 21 Black Zinc Nickel w/ Exposed Nickel Entry 2 Learn More about Amphenol PCD backshells	Datasheet	23In Stock	₹6,427.93 ₹5,574.76 ₹5,557.56 ₹5,447.69 View ₹5,308.20 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	21	Straight
Circular MIL Spec Backshells BACKSHELL ENV ST NIC M85049/11-19N Amphenol PCD 1: ₹8,989.36 50In Stock	Mfr. Part No. M85049/11-19N Mouser Part No 523-85049/11-19N	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV ST NIC Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	50In Stock	₹8,989.36 ₹8,224.08	Min.: 1 Mult.: 1		Environmental Backshells	MIL-DTL-5015, MIL-DTL-26482 II	14	Straight
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N07 Amphenol PCD 1: ₹6,984.93 63In Stock	Mfr. Part No. M85049/1825N07 Mouser Part No 523-85049/1825N07	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	63In Stock	₹6,984.93 ₹6,435.57 ₹5,663.61	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13 M85049/2113N03 Amphenol PCD 1: ₹4,101.53 46In Stock	Mfr. Part No. M85049/2113N03 Mouser Part No 523-85049/2113N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	46In Stock	₹4,101.53 ₹3,566.51 ₹3,234.03 ₹3,149.00 View ₹3,079.25 Quote	Min.: 1 Mult.: 1		Non-Environmental Backshells	MIL-DTL-38999 III, IV	13	Straight

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