Trustpilot rating stars4.5 ★
Toggle Nav
My Cart
Search
Advanced Search
  • Compare
Menu
Account
main product photo

Lock Nut

Be the first to review this product
$21.15
In Stock
SKU
JT9-5508439
test test
ⓘKnow Before You Order
×

Know Before You Order

Some orders ship faster than others

We stock tens of thousands of parts in our warehouse, and most in-stock orders ship within 24 business hours. Because we specialize in hard-to-find tool parts, some items are sourced directly from the manufacturer after your order is placed and may require 10–14 business days before shipment. We believe in being transparent about timelines so you know what to expect before ordering. If timing is critical, please contact with your part number for an estimated delivery timeframe.

Why does M&M Tool Parts offer parts other companies don’t?

As a family-owned business, we’ve built long-standing relationships with trusted manufacturers across the industry. These partnerships allow us to source specialty parts that are often unavailable through larger retailers or online marketplaces. In many cases, M&M Tool Parts provides one of the few reliable ways to obtain these components — and we work hard to get them to you as quickly as possible.

What should I expect after placing my order?

Our team begins processing orders immediately. If your item is stocked locally, you’ll typically receive tracking information within 24 business hours. For manufacturer-sourced items, we coordinate directly with vendors to secure and ship your order as efficiently as possible. We understand downtime is frustrating, and we sincerely appreciate your patience while we help source parts that can often be difficult to find elsewhere.

Jet 4200A LOCK NUT 5508439
Read More
Repair your Jet Machinery now with this Jet 4200A LOCK NUT 5508439. We offer the complete line of replacement parts to keep your Jet running
More Information
On OfferNo
Buy TogetherNo
Ship FreeNo
Write Your Own Review
You're reviewing:Lock Nut
Compatibility
  1. Jet 414551_J-4200A Belt-Disc Combination Sanding Parts
  2. Jet 414552_J-4200A-2 Belt-Disc Combination Sanding Parts
  3. Jet 414553_J-4202A Belt-Disc Combination Sanding Parts
  4. Jet 414600_J-4300A Belt-Disc Combination Sanding Parts
  5. Jet 414601_J-4301A Belt-Disc Combination Sanding Parts
  6. Jet 414602_J-4400A Belt-Disc Combination Sanding Parts
© Copyright 2026. MMToolParts.com All Rights Reserved.