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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Results: 11 098
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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 18 Backshell Env-EMI/RFI
Datasheet
22In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells 18 Backshell Env-EMI/RFI
Datasheet
4In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21
Datasheet
12In Stock
25Expected 11/05/2026
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 21
Datasheet
22In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23
Datasheet
10In Stock
50On Order
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 23 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 23
Datasheet
19In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 23 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25
Datasheet
6In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 25 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL ENV EMI/ RFI ST NIC SZ 25
Datasheet
10In Stock
Min.: 1
Mult.: 1

Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 25 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
7In Stock
175On Order
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 11 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 13
Datasheet
31In Stock
50Expected 11/05/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 13 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 15
Datasheet
24In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 15 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17
Datasheet
24In Stock
25Expected 11/05/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
13In Stock
25Expected 09/03/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 17
Datasheet
14In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 17 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 19
Datasheet
29In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
25In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 19 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21
Datasheet
15In Stock
25Expected 09/03/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 21
Datasheet
15In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
10In Stock
25Expected 30/04/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
21In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 21 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23
Datasheet
17In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 23 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23
Datasheet
16In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 23 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 23
Datasheet
8In Stock
50On Order
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 23 Straight
Amphenol PCD Circular MIL Spec Backshells 19 Backshell Non Env-EMI/RFI
Datasheet
24In Stock
25Expected 10/03/2026
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 25 Straight
Amphenol PCD Circular MIL Spec Backshells BACKSHELL NON ENV EMI/RFI ST NIC SZ 25
Datasheet
15In Stock
Min.: 1
Mult.: 1

Non-Environmental EMI/RFI Backshells MIL-DTL-38999 III, IV 25 Straight