RA 1043403-005

Frequently Asked Questions

Q: What are the specifications of the RA 1043403-005 locknut?
A: The RA 1043403-005 is an OEM Grade 8 carbon steel locknut with M12 x 1.75 mm right-hand thread. It features phosphate coating for corrosion protection. This grade designation indicates it meets high tensile strength requirements for load-bearing applications in Raymond electric lift trucks.

Q: What is this locknut used for on Raymond electric lift trucks?
A: The RA 1043403-005 is specified for load wheel assembly retention on Raymond electric lift trucks and pallet jacks. It provides secure fastening in high-load cycle applications where vibration and repetitive movement demand a locking mechanism to prevent loosening.

Q: Why is this a Grade 8 carbon steel locknut and what does that mean?
A: Grade 8 designation means this locknut meets minimum tensile strength of 150,000 psi. This high strength rating is necessary because the M12 x 1.75 fastener secures load wheels under dynamic conditions with repeated impact and lateral forces. The phosphate coating adds corrosion resistance in warehouse and outdoor environments.

Q: How often does this locknut require replacement or maintenance?
A: Replace the RA 1043403-005 if you observe thread stripping, corrosion penetration through the phosphate coating, or if the locking feature no longer prevents rotation. Grade 8 locknuts typically have long service life in material handling equipment, but inspect periodically in high-duty applications.

Q: Is there a cross-reference or alternate part number for the RA 1043403-005?
A: The alternate part number is 1043403-005 without the RA prefix. When ordering, use the full OEM part number RA 1043403-005 to ensure you receive the correct Grade 8 specification and phosphate coating required for load wheel retention.