Connectors – Mouser South Africa

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI M85049/1821N04 Amphenol PCD 1: $69.14 15In Stock	Mfr. Part No. M85049/1821N04 Mouser Part No 523-85049/1821N04	Amphenol PCD	Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	15In Stock	$69.14 $60.01 $58.17 $55.39 $52.75	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 M85049/1821N06 Amphenol PCD 1: $63.95 22In Stock	Mfr. Part No. M85049/1821N06 Mouser Part No 523-85049/1821N06	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	22In Stock	$63.95 $59.35 $59.34 $57.75 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 M85049/1821N07 Amphenol PCD 1: $60.99 13In Stock 25Expected 2026/11/24	Mfr. Part No. M85049/1821N07 Mouser Part No 523-85049/1821N07	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	13In Stock 25Expected 2026/11/24	$60.99	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N04 Amphenol PCD 1: $76.19 14In Stock	Mfr. Part No. M85049/1823N04 Mouser Part No 523-85049/1823N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	14In Stock	$76.19 $66.19 $62.05 $59.09 $56.27	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N04A Amphenol PCD 1: $76.77 25In Stock	Mfr. Part No. M85049/1823N04A Mouser Part No 523-85049/1823N04A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	25In Stock	$76.77 $68.24 $66.69 $63.92 View Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI M85049/1823N06 Amphenol PCD 1: $80.77 15In Stock	Mfr. Part No. M85049/1823N06 Mouser Part No 523-85049/1823N06	Amphenol PCD	Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	15In Stock	$80.77 $68.66 $64.36 $61.28 View $58.36 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 M85049/1823N06B Amphenol PCD 1: $81.47 13In Stock	Mfr. Part No. M85049/1823N06B Mouser Part No 523-85049/1823N06B	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	13In Stock	$81.47 $72.41 $70.44 $69.38 View $64.85 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N07B Amphenol PCD 1: $79.86 15In Stock	Mfr. Part No. M85049/1825N07B Mouser Part No 523-85049/1825N07B	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	15In Stock	$79.86 $75.65 $75.64 $75.15 View $69.02 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 M85049/1825N10 Amphenol PCD 1: $90.98 16In Stock	Mfr. Part No. M85049/1825N10 Mouser Part No 523-85049/1825N10	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	16In Stock	$90.98 $77.34 $72.49 $69.04 $65.74	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11 M85049/1911N03A Amphenol PCD 1: $53.11 12In Stock	Mfr. Part No. M85049/1911N03A Mouser Part No 523-85049/1911N03A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	12In Stock	$53.11 $50.45 $49.30 $48.68 View $47.43 $46.94 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 M85049/1915N05A Amphenol PCD 1: $64.37 20In Stock	Mfr. Part No. M85049/1915N05A Mouser Part No 523-85049/1915N05A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	20In Stock	$64.37 $55.82 $50.58	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 M85049/1917N02 Amphenol PCD 1: $59.27 20In Stock	Mfr. Part No. M85049/1917N02 Mouser Part No 523-85049/1917N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	20In Stock	$59.27 $53.73 $49.85 $49.46 View $46.30 $45.89 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 M85049/1917N06A Amphenol PCD 1: $68.71 12In Stock	Mfr. Part No. M85049/1917N06A Mouser Part No 523-85049/1917N06A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	12In Stock	$68.71 $59.59 $58.23 $55.20 View $54.61 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 19 M85049/1919N03 Amphenol PCD 1: $44.19 17In Stock	Mfr. Part No. M85049/1919N03 Mouser Part No 523-85049/1919N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 19 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	17In Stock	$44.19 $44.18 $43.94	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI M85049/1919N06 Amphenol PCD 1: $66.78 6In Stock 25Expected 2026/11/25	Mfr. Part No. M85049/1919N06 Mouser Part No 523-85049/1919N06	Amphenol PCD	Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	6In Stock 25Expected 2026/11/25	$66.78 $56.65 $52.54 $50.67 View $46.86 $46.65	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21 M85049/1921N04 Amphenol PCD 1: $64.90 26In Stock	Mfr. Part No. M85049/1921N04 Mouser Part No 523-85049/1921N04	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	26In Stock	$64.90 $56.28 $56.11 $55.00 View $52.37 $51.81 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI M85049/1921N07 Amphenol PCD 1: $69.20 22In Stock	Mfr. Part No. M85049/1921N07 Mouser Part No 523-85049/1921N07	Amphenol PCD	Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	22In Stock	$69.20 $59.69 $55.96 $53.29 $50.75	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 M85049/1923N09 Amphenol PCD 1: $76.51 42In Stock	Mfr. Part No. M85049/1923N09 Mouser Part No 523-85049/1923N09	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	42In Stock	$76.51 $66.17 $62.02 $59.06 View $56.24 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25 M85049/1925N07 Amphenol PCD 1: $75.77 13In Stock 25Expected 2026/12/02	Mfr. Part No. M85049/1925N07 Mouser Part No 523-85049/1925N07	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	13In Stock 25Expected 2026/12/02	$75.77 $73.73 $73.72 $72.50 View $67.69 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25 M85049/1925N09 Amphenol PCD 1: $72.42 1In Stock 25Expected 2026/12/29	Mfr. Part No. M85049/1925N09 Mouser Part No 523-85049/1925N09	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	1In Stock 25Expected 2026/12/29	$72.42 $67.69 $67.67 $64.77 Quote Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells 20 Backshell Crmp Rng M85049/20-23N Amphenol PCD 1: $26.75 18In Stock	Mfr. Part No. M85049/20-23N Mouser Part No 523-85049/20-23N	Amphenol PCD	Circular MIL Spec Backshells 20 Backshell Crmp Rng Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	18In Stock	$26.75 $22.74 $20.77 $19.04 View $18.70 $18.33	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 M85049/2111N01A Amphenol PCD 1: $41.75 6In Stock 25Expected 2026/11/04	Mfr. Part No. M85049/2111N01A Mouser Part No 523-85049/2111N01A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	6In Stock 25Expected 2026/11/04	$41.75 $39.33 $35.40 $34.16 View $33.08 $32.51 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 M85049/2111N02 Amphenol PCD 1: $42.04 30In Stock	Mfr. Part No. M85049/2111N02 Mouser Part No 523-85049/2111N02	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	30In Stock	$42.04 $36.30 $34.97 $32.65 View $30.52 $29.14 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 M85049/2111N02A Amphenol PCD 1: $43.01 2In Stock	Mfr. Part No. M85049/2111N02A Mouser Part No 523-85049/2111N02A	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	2In Stock	$43.01 $40.44 $34.79 $34.75 View $32.53 $32.05 Quote	Min.: 1 Mult.: 1
Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 M85049/2111N03 Amphenol PCD 1: $65.20 17In Stock	Mfr. Part No. M85049/2111N03 Mouser Part No 523-85049/2111N03	Amphenol PCD	Circular MIL Spec Backshells BACKSHELL NON ENV ST NIC SZ 11 Learn More about Amphenol PCD amphenolpcdbackshell	Datasheet	17In Stock	$65.20 $35.77 $35.18 $34.89 Quote Quote	Min.: 1 Mult.: 1

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