Product Description
UHF (SO-239) - Coaxial Dust Cover Protective Cap
Protect your valuable radio equipment with the G510 Weather Cap, a durable, nickel-plated brass dust cap designed to protect exposed UHF female jack (SO-239) antenna mounts from moisture, dirt, dust, and grime. The cap has UHF male (PL-259) threads that screws onto a standard UHF female jack (SO-239) antenna base, helping keep the connector clean and protected when an antenna is temporarily removed.
Ideal for mobile radio installations, amateur radio stations, emergency communications, and portable field equipment, the G510 is especially useful when preparing radio equipment for transport, storage, or deployment. It is also a practical accessory for vehicle-mounted antennas when the antenna is removed before a car wash.
A built-in red silicone gasket provides a protective sealing interface inside the cap. The rugged brass body with nickel plating offers durability and corrosion resistance for dependable service in demanding environments.
Key Features
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Protective Design: Helps keep moisture, dirt, dust, and grime away from exposed UHF female antenna mounts.
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Durable Construction: Brass body with nickel-plated finish.
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Red Silicone Gasket: Internal gasket helps provide a protective seal.
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Standard UHF Threading: 5/8"-24 UNEF thread for compatible UHF (SO-239) female antenna bases.
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Versatile Applications: Suitable for mobile radio installations, amateur radio equipment, emergency communications, and portable radio go-kits or go-boxes.
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Convenient Protection: Ideal when temporarily removing an antenna for vehicle washing, transport, or storage.
Technical Specifications
| Product Type | Dust Cap |
| Part Number | ARS-G510-N (M) |
| Compatible Connector | UHF Female Jack (SO-239) |
| Thread | 5/8"-24 UNEF |
| Body Material | Brass |
| Body Plating | Nickel |
| Gasket Material | Silicone |
| Gasket Color | Red |
| Length | 0.44 in (11.24 mm) |
| Width | 0.71 in (18.00 mm) |
| Height / Outside Diameter | 0.71 in (18.00 mm) |
| Inside Diameter | 0.63 in (16.00 mm) |
| Weight | 0.3 oz (8 g) |
| Operating Temperature Range | -65°C to +165°C |
Recommended Applications
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Mobile and vehicle-mounted UHF (SO-239) antenna installations
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Amateur radio stations and antenna systems
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Emergency communications equipment
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Portable radio go-kits and go-boxes
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Temporary antenna removal and equipment storage
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Protection of exposed UHF female jack (SO-239) antenna bases
Keep your UHF female jack (SO-239) antenna connection protected when your antenna is not installed. The American Radio Supply G510 Weather Cap is a simple, practical accessory for helping maintain clean, protected, and ready-to-use radio equipment.
Compatibility note: Verify the connector thread and mounting configuration before ordering. This cap is intended for compatible UHF female jack (SO-239) antenna bases.
Other Details
See warranty details aboveProduct Videos
Custom Field
Product Reviews
67 Reviews Hide Reviews Show Reviews
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Excellent Protective Cover
These caps are the best quality I have seen. These are made of metal and have a rubber gasket to keep the elements out of an uncovered antenna mount. These are of excellent manufacture and fit perfect. These are much better that the plastic covers found elsewhere.
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Nice Solid Caps...
Nice solid caps that keeps connector dry. Good for when I use the car wash.
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Excellent Rain Caps!
Excellent Rain Caps. Very good product.
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Nice Finishing Touch
I only operate on the Amateur Bands via JT-65, JT-9, PSK31 and some CW so I seldom use a microphone and as I don't even have the microphones attached to several VHF/UHF & HF radios on my bench, these protective caps were a natural to cover up the mic interfaces. In fact, they make the bench look rather nice. l Glad I bought them.
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Surprisingly Useful!
These caps are surprisigly useful for amateur radio equipment. They are the same size as the 239 connector on the back, or the microphone plug on the front of most rigs. If you are a CW only operator, you can use one to cover the microphone plug and store your microphone away. If your HF rig has multiple SO-239 connectors on the back and you are only using one, you can cover the other connectors with these to keep them clean. If you are using a rig in the field, you can use these to cover the plugs to prevent dirt or damage during transportation or field use. If you do DXpeditions, you can use these to help prevent corrosion to unused plugs. I bought a large bag to use, and will share spares with friends and fellow club members.
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Perfect Cover
I needed a cover so that I can protect the threads while I run my truck through the Car Wash. These are very well made. Actually, I wish I bought more.....plan on doing that on the next order.
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Well Made
These caps are machined out of solid brass and sealed with a rubber gasket. The plating is good and the threads are clean. A well made part.
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Capped to go
This attachment is quite useful in keep your cover nearby. I think it is great and it protects my antenna analyzer's so-239 connector from damage and trash. I do wish it had a chain connector as well.
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Great Stuff - Will Buy Them Again
Great Stuff - Will Buy Them Again
