Female

Removed from Bird Equipment
Locking Method: Coupling Nut
Impedance: 50 Ohms
Pin: Sliver Plated
Body: Silver Plated Copper Alloy
Clean Used * No longer available for export
MFR: ECCO Connector
SKU: UG83B/U-P

Body: Silver Plated
Contact: Gold Plated
Dielectric: PTFE
New Old Stock, No longer available for export
MFR: Amphenol
SKU: M55339/06-00028

31N-50-0-2 IN Series Adapter, Type-N Female to Female Barrel, Nickel, PTFE, MFR: Huber/Suhner

Ohms: 50 
Body: Brass
Center Pin: Gold Plated
Dielectric: PTFE
MFR: Amphenol
SKU: 172276

Ohms: 50 
Body: Brass
Center Pin: Gold Plated
Dielectric: PTFE
MFR: Amphenol
SKU: 172278

Comes with Rubber O-ring, lock washer, and nut.
Connector Type: RF STRAIGHT ADAPTER
Adapter Style: N-N
Body/Shell Style: JACK-JACK
Characteristic Impedance: 50.0 ohm
Voltage Rating: 1000 VRMS
Frequency Range: DC to 11 Ghz
Reliability: COMMERCIAL

New Old Stock * No longer available for export
MFR: Kings Electronics Company
SKU: KN-99-34-M06

Type-N Female to Type-N Female
Ohms: 50 
Body: Nickel Plated Brass
Center Pin: Gold Plated Phosphor Bronze
Dielectric: PTFE
MFR: Amphenol
SKU: 82-66-RFX

Ohms: 50 
Body: Nickel Plated Brass
Center Pin: Gold Plated  Phosphor Bronze
Dielectric: PTFE
MFR: Amphenol
SKU: 82-101-RFX
Made in China

50 ohm
Body: Nickel Plated Brass
Center Pin: Gold Plated Beryllium Copper
Dielectric: PTFE
MFR: Amphenol
SKU: 82-101
Made in Mexico