Circular MIL Spec Connectors

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Backshell Clamps

Amphenol PCD Backshell Clamps help to tidy up the cable after termination and provide strain relief at the termination area. The clamps are offered in environmental and non-environmental options, as well as EMI/RFI. The components are available in black zinc nickel, adding to the existing finishes in olive drab gray cadmium, tin, or nickel with a variety of shell sizes 11 through 48. Amphenol PCD Backshell Clamps meet MIL-DTL-38999, MIL-DTL-26482 Series II, MIL-DTL-83723 Series I and II, MIL-DTL-24308, and MIL-DTL-83513.

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Types of Circular MIL Spec Connectors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 88 Backshell Band Lock M85049/88-9N03 Amphenol PCD 1: ¥5,687.3 3,557In Stock 275Expected 10/15/2026	Mfr. Part # M85049/88-9N03 Mouser Part # 523-85049/88-9N03	Amphenol PCD	Circular MIL Spec Backshells 88 Backshell Band Lock Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	3,557In Stock 275Expected 10/15/2026	¥5,687.3 ¥5,253.7 ¥4,871.7 ¥4,793.6 View ¥4,639.2 ¥4,537.9 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: ¥12,113.7 570In Stock	Mfr. Part # M85049/89-23W03 Mouser Part # 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	¥12,113.7 ¥10,989.2 ¥10,509.1 ¥10,133.8 View ¥8,756.8 Quote	Min.: 1 Mult.: 1	No	Band Lock Adapters	MIL-DTL-38999 III, IV	23
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 M85049/1923N07 Amphenol PCD 1: ¥12,009 28In Stock	Mfr. Part # M85049/1923N07 Mouser Part # 523-85049/1923N07	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	28In Stock	¥12,009 ¥10,675.2 ¥10,276.6 ¥10,260 View Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	23	Straight
Circular MIL Spec Backshells BACKSHELL BND LCK 45 DEG ADPT NIC SZ 15 M85049/89-15N02 Amphenol PCD 1: ¥9,549.1 35In Stock	Mfr. Part # M85049/89-15N02 Mouser Part # 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	¥9,549.1 ¥8,570.8 ¥8,212 ¥7,820	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	15
Circular MIL Spec Backshells BACKSHELL ENV ST NIC M85049/11-13N Amphenol PCD 1: ¥9,655.4 31In Stock	Mfr. Part # M85049/11-13N Mouser Part # 523-85049/11-13N	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV ST NIC Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	31In Stock	¥9,655.4 ¥8,618.9 ¥8,341.5 ¥8,190.4 ¥7,800.1	Min.: 1 Mult.: 1		Environmental Backshells	MIL-DTL-5015, MIL-DTL-26482 II	12	Straight
Circular MIL Spec Backshells BACKSHELL ENV ST NIC M85049/11-19N Amphenol PCD 1: ¥15,623.4 50In Stock	Mfr. Part # M85049/11-19N Mouser Part # 523-85049/11-19N	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV ST NIC Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	50In Stock	¥15,623.4 ¥13,791.3 ¥13,125.2 ¥12,548.9 ¥11,733.3	Min.: 1 Mult.: 1		Environmental Backshells	MIL-DTL-5015, MIL-DTL-26482 II	14	Straight
Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI M85049/1819N07 Amphenol PCD 1: ¥11,588.8 48In Stock	Mfr. Part # M85049/1819N07 Mouser Part # 523-85049/1819N07	Amphenol PCD	Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	48In Stock	¥11,588.8 ¥10,326.4 ¥9,858 ¥9,409.6 View ¥8,954.5 Quote	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	19	Straight
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N07 Amphenol PCD 1: ¥12,004 63In Stock	Mfr. Part # M85049/1825N07 Mouser Part # 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	¥12,004 ¥10,979.2 ¥9,743.4 Quote Quote	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	25	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 M85049/1915N04 Amphenol PCD 1: ¥10,072.3 33In Stock	Mfr. Part # M85049/1915N04 Mouser Part # 523-85049/1915N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	33In Stock	¥10,072.3 ¥8,733.5 ¥8,030.9 ¥7,735.3 View ¥7,648.9 Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	15	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 M85049/1923N08 Amphenol PCD 1: ¥12,238.2 5In Stock	Mfr. Part # M85049/1923N08 Mouser Part # 523-85049/1923N08	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	5In Stock	¥12,238.2 ¥10,788.2 ¥9,630.5 ¥9,172 View Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	23	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 13 M85049/2113N03 Amphenol PCD 1: ¥7,130.7 46In Stock	Mfr. Part # M85049/2113N03 Mouser Part # 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	¥7,130.7 ¥6,200.5 ¥5,566 ¥5,562.7 View ¥5,296.9 ¥4,966.4	Min.: 1 Mult.: 1		Non-Environmental Backshells	MIL-DTL-38999 III, IV	13	Straight
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21 M85049/1921N05 Amphenol PCD 1: ¥11,000.8 32In Stock	Mfr. Part # M85049/1921N05 Mouser Part # 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	¥11,000.8 ¥9,542.4 ¥9,494.3 ¥8,525.9 View ¥8,120.6 Quote	Min.: 1 Mult.: 1		Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	21	Straight
Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 25 M85049/88-25N02 Amphenol PCD 1: ¥9,755.1 234In Stock	Mfr. Part # M85049/88-25N02 Mouser Part # 523-85049/88-25N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	234In Stock	¥9,755.1 ¥8,461.1 ¥7,335 ¥7,271.9 ¥7,127.4	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	25
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14 M85049/1714N02 Amphenol PCD 1: ¥10,391.2 53In Stock	Mfr. Part # M85049/1714N02 Mouser Part # 523-85049/1714N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 14 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	53In Stock	¥10,391.2 ¥8,934.5 ¥8,788.4 ¥8,496	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 I, II	14	Straight
Circular MIL Spec Strain Reliefs & Adapters 51 Backshell Strain Relief Clamp M85049/51S12N Amphenol PCD 1: ¥4,571.1 75In Stock	Mfr. Part # M85049/51S12N Mouser Part # 523-85049/51S12N	Amphenol PCD	Circular MIL Spec Strain Reliefs & Adapters 51 Backshell Strain Relief Clamp Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	75In Stock	¥4,571.1 ¥3,888.4 ¥3,567.8 ¥3,277.2 View ¥3,132.6 ¥2,983.2	Min.: 1 Mult.: 1		Strain Reliefs	MIL-DTL-5015, MIL-DTL-26482 II	12	Right Angle
Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14 M85049/84-14N03 Amphenol PCD 1: ¥11,867.8 34In Stock	Mfr. Part # M85049/84-14N03 Mouser Part # 523-85049/84-14N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 14 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	34In Stock	¥11,867.8 ¥10,627.1 ¥9,813.2 ¥9,582.3 View ¥9,095.6 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	14
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18 M85049/10-25N Amphenol PCD 1: ¥14,434.1 31In Stock	Mfr. Part # M85049/10-25N Mouser Part # 523-85049/10-25N	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 18 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	31In Stock	¥14,434.1 ¥14,150.1 ¥14,148.4 ¥14,020.5 View Quote	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-5015, MIL-DTL-26482 II	10	Straight
Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NIC SZ 9 M85049/39S9N Amphenol PCD 1: ¥6,652.3 279In Stock	Mfr. Part # M85049/39S9N Mouser Part # 523-85049/39S9N	Amphenol PCD	Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A SL NIC SZ 9 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	279In Stock	¥6,652.3 ¥4,185.7 ¥3,582.8 ¥3,406.7 View ¥3,250.6 ¥3,242.3	Min.: 1 Mult.: 1		Strain Reliefs	MIL-DTL-38999 III, IV	9	Right Angle
Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NIC SIZE 18 M85049/51-1-18N Amphenol PCD 1: ¥2,803.8 190In Stock	Mfr. Part # M85049/51-1-18N Mouser Part # 523-85049/51-1-18N	Amphenol PCD	Circular MIL Spec Strain Reliefs & Adapters BACKSHELL SR R/A NIC SIZE 18 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	190In Stock	¥2,803.8 ¥2,604.4 ¥2,548 ¥2,328.7 View ¥2,165.9 ¥2,063	Min.: 1 Mult.: 1		Strain Reliefs	MIL-DTL-5015, MIL-DTL-26482 II	18	Right Angle
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9 M85049/78-09N02 Amphenol PCD 1: ¥11,703.4 27In Stock	Mfr. Part # M85049/78-09N02 Mouser Part # 523-85049/78-09N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI 45 DEG NIC SZ 9 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	27In Stock	¥11,703.4 ¥10,123.8 ¥9,037.5 ¥8,607.3 Quote Quote	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	9
Circular MIL Spec Backshells 89 Backshell Band Lock M85049/89-9N03 Amphenol PCD 1: ¥7,127.4 44In Stock	Mfr. Part # M85049/89-9N03 Mouser Part # 523-85049/89-9N03	Amphenol PCD	Circular MIL Spec Backshells 89 Backshell Band Lock Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	44In Stock	¥7,127.4 ¥6,678.9 ¥6,326.7 ¥5,916.5 View ¥5,904.9 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-38999 III, IV	9
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 09 M85049/1809N01 Amphenol PCD 1: ¥8,859.8 29In Stock 25Expected 10/14/2026	Mfr. Part # M85049/1809N01 Mouser Part # 523-85049/1809N01	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 09 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	29In Stock 25Expected 10/14/2026	¥8,859.8 ¥8,050.9 ¥7,667.2 ¥7,429.7 View ¥6,948 ¥6,873.2 Quote	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-38999 III, IV	9	Straight
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 20 M85049/10-31N Amphenol PCD 1: ¥14,610.2 50In Stock	Mfr. Part # M85049/10-31N Mouser Part # 523-85049/10-31N	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 20 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	50In Stock	¥14,610.2 ¥13,638.5 ¥13,009 ¥11,786.5 ¥11,037.3	Min.: 1 Mult.: 1		Environmental EMI/RFI Backshells	MIL-DTL-5015, MIL-DTL-26482 II	20	Straight
Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12 M85049/84-12N03 Amphenol PCD 1: ¥11,743.3 55In Stock	Mfr. Part # M85049/84-12N03 Mouser Part # 523-85049/84-12N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 12 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	55In Stock	¥11,743.3 ¥10,148.7 ¥8,680.4 ¥8,637.2 View ¥8,633.9 Quote	Min.: 1 Mult.: 1		Band Lock Adapters	MIL-DTL-5015, MIL-DTL-26482 II	12
Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI M85049/3618W07 Amphenol PCD 1: ¥11,852.9 34In Stock	Mfr. Part # M85049/3618W07 Mouser Part # 523-85049/3618W07	Amphenol PCD	Circular MIL Spec Backshells 36 Backshell Non Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	34In Stock	¥11,852.9 ¥10,537.4 ¥10,133.8 ¥10,095.6 View Quote	Min.: 1 Mult.: 1	No	Non-Environmental EMI/RFI Backshells	MIL-DTL-38999 I, II	18	Straight

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