Graco 101533 Spring Lock Washer

Compatible Machines — 101533 Spring Lock Washer

• Graco Supply Units / Ram Assemblies — various single/dual-post ram bases and tie-rod assemblies
• Graco General Industry Supply Systems — ram base/mounting locations calling for a spring lock washer
• Graco Air-Powered Ram (3" with integrated air controls) — tie-rod and frame fastener stacks
• Graco HydraMax Sprayers — HydraMax 225, HydraMax 300, HydraMax 350
• Graco 1:1 Extruder — fastener locations requiring lock retention under vibration

Part Overview

The Graco 101533 Spring Lock Washer is a genuine OEM lock washer used to prevent loosening of nuts/bolts in high-vibration assemblies. It is commonly found in ram units, supply systems, select HydraMax sprayers, and 1:1 extruders.

Key Specs

Common Uses

• Securing frame/tie-rod stacks on ram assemblies
• Fastener retention on supply systems and extruders
• High-vibration locations on HydraMax sprayers

Install & Service Notes

• Place the spring lock washer under the nut/bolt head with full, flat seating before torquing.
• Follow the specific model’s service manual for torque values and stack order (washer orientation matters).
• Replace any visibly flattened, cracked, or corroded lock washer during service.

Frequently Asked Questions