Nylon Insert Flange Lock Nut 1/2-13 for Spartan Mowers SKU: 99-5107

A loose or missing blade spindle nut creates dangerous blade wobble, premature spindle wear, and potential blade loss during operation. This genuine Spartan nylon insert flange lock nut provides the secure, vibration-proof connection your mower deck spindle assembly requires for safe, reliable cutting performance.

Why Genuine Matters

• Nylon insert technology prevents loosening under constant deck vibration
• Zinc yellow plating resists corrosion from grass moisture and debris
• Flange design distributes load evenly to prevent spindle housing damage
• 1/2-13 thread matches Spartan spindle specifications exactly

Replaces These Part Numbers

• Spartan 413-0002-00

This self-locking nut is a critical safety component that maintains proper blade attachment under the demanding conditions of commercial mowing. Compatible with most Spartan mowers except Shield and Defender models.