Note: Silver-Plated connectors have darkening from long time.
Real  condition look at the photo!!!

1Lot = 10pcs. New Coaxial Silver Plated Connectors type SR-50-258FV
For COAXIAL ANTENNA RELAY REV-16. Impedance 50 Ohm.  

Silver Plated Connectors, Type SR-50-258FV, are for cable up to 4 mm
 Insulating material Fluoroplastic (PTFE)
I also have connectors for cable up to 6 mm, up to 10 mm. And COAXIAL ANTENNA RELAY REW-16 Impedance 50 Ohms

 New Condition.  This never been used. Real  condition look at the photo!!!
  Made in  ex USSR
Package includes 10 pcs connectors. If you need connectors in another quantity of, please write and I'll be glad to help you.

RF Impedance 50 Ohms

The structure of the symbol SR-50-258FV:
- SR - RF connector;
- 50 - value of the wave resistance (Ohm);
- 258 - serial number of development;
- F - insulation material Fluoroplastic (PTFE);
- V - all-climatic execution.
 
Specifications SR 50-258FV:

Connector type - plug.
Material of contacts brass silver plated -  Ag999
Dimensions -34 × 15.5 mm.
Weight - 20 g.
Limit frequency - up 10 GHz.
Connection type - threaded.
The operating voltage is 250 V.
Transient contact resistance - 0.01 Ohm.
Operational temperature   -60 to +155 oC

                         Shipping
Shipping worldwide by Registered Air parcel with Tracking number.
Your item will be shipped within 1-2 business days once payment received.
Items are shipped from Ukraine using Airmail, reach most of the countries within 15-20 business days.
Delivery time depends on destination, how quickly the package goes through Customs and other factors, it may takes up to 20 business days.