Waveguide Flange Protective Caps / Dust Covers for UG387/U WG Interface WR12, WR10, WR8, WR6, WR5, WR4, WR3,

Features:
 - Fits any standard UG387/U Waveguide Interface
 - Secured to waveguide flange using captive screws (screws not included)
 - Compatible with standard waveguide captive screws
 - Prevents guide pins from being damaged or bent.
 - Prevents dust and debris from entering waveguide aperture
 - Anti-cocking design (i.e. contact only made on flange perimeter)
 - Strong and durable
 - Made in USA

Specifications:
 - Outside Diameter: 19 mm
 - Thickness: 9 mm
 - Material: plastic
 - Color: black