The 221586-3: It's molded in ivory polypropylene (PP), a material that holds up well in lab and field environments where you need a non-conductive, weather-resistant dust cover. The lanyard keeps it tethered to the adapter or cable so it doesn't walk off during a swap-out.
TE Connectivity 221586-3 BNC Cap, Ivory Polypropylene
MPN221586-3
Active
TE Connectivity, BNC Cap (Cover), 221586-3, Ivory, Polypropylene (PP), Lanyard, Box, For Use With BNC Tee Adapter.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Accessory type | Cap (Cover) |
| Connector type | BNC |
| Color | Ivory |
| Body material | Polypropylene (PP) |
| Package | Box |
| Features | Lanyard |
| For use with (Related products) | BNC Tee Adapter |
Product details
Frequently asked questions
Is the 221586-3 compatible with a standard BNC Tee adapter?
Yes, the 221586-3 is specifically listed for use with BNC Tee Adapters. It fits over the tee's female BNC port to protect it when not in use.
What material is the 221586-3 cap made of?
The 221586-3 is molded from polypropylene (PP) in an ivory color. Polypropylene is a common choice for BNC caps — it's non-conductive, resists chemicals, and holds up to repeated handling.