Model: NOV 50910-S Regular Lock Washer
Material: Spring steel with anti-corrosion surface treatment
Type: Split helical lock washer
Application: General bolted connections of NOV Varco TDS-9SA / TDS-11SA top drive
Feature: Anti-loosening under continuous vibration, resist mud and moisture corrosion
Operating environment: Onshore & offshore drilling rig
Installation: Matched with corresponding hex bolt and nut assemblies
Function: Prevent fastener loosening caused by alternating vibration load
