1/2″ lock nut used to hold the L-bracket (90-02-5150) in place.

Fits the bolts for the following Outside Link Plate models and sizes for 6K, 10K, 12K, and 14K model hitches:

• 4-3/8″ BAL Norco 90-02-5374
• Standard Outside Link Plate 90-02-5370
• 8″ Outside Link Plate 90-02-5378
• 10″ Outside Link Plate 90-02-5379

Also requires: Mounting Bolt part# 90-04-9281