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.

Types of Circular MIL Spec Connectors
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Product
MIL Type
Shell Size
Shell Style
Amphenol PCD Circular MIL Spec Backshells 11 Backshell Env
Datasheet
51In Stock
Min.: 1
Mult.: 1
No
Environmental Backshells MIL-DTL-5015, MIL-DTL-26482 II 28 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV ST OD CAD
Datasheet
16In Stock
Min.: 1
Mult.: 1
No
Environmental Backshells MIL-DTL-5015, MIL-DTL-26482 II 32 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 08
Datasheet
37In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 8 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 10
Datasheet
49In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 10 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 12
Datasheet
60In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 12 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 16
Datasheet
31In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 16 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 16
Datasheet
24In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 16 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 22
Datasheet
47In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 I, II 22 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 11
Datasheet
75In Stock
50Expected 08/10/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 11 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 11
Datasheet
245In Stock
550On Order
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 11 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15
Datasheet
38In Stock
250On Order
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 15 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15
Datasheet
38In Stock
50Expected 28/10/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 15 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 15
Datasheet
135In Stock
75Expected 09/11/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 15 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 17
Datasheet
35In Stock
50Expected 08/10/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 17
Datasheet
38In Stock
150On Order
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 17
Datasheet
26In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 19
Datasheet
34In Stock
50Expected 06/10/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 19
Datasheet
93In Stock
75On Order
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI
Datasheet
33In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 19
Datasheet
59In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 19
Datasheet
49In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 21
Datasheet
27In Stock
25Expected 11/11/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 21
Datasheet
30In Stock
50Expected 08/10/2026
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 21
Datasheet
91In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST OD CAD SZ 21
Datasheet
38In Stock
Min.: 1
Mult.: 1
No
Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight