Multiquip 10133 Nyloc Nut 3/8-16

The Multiquip 10133 is a genuine OEM Nyloc Nut 3/8-16 designed for a wide range of Multiquip and Whiteman equipment across multiple product families. As an OEM-sourced fastener, the part meets the original engineering specifications used during manufacture, ensuring a consistent, secure fit across every application it covers. This nut is confirmed to fit an extensive list of models including ride-on and walk-behind power trowels, water trailers, trash pumps, mixers, saws, generators, light towers, and roller screeds — making it one of the most broadly applied fasteners in the Multiquip parts catalog. Keeping genuine OEM hardware on hand means you are always ready to complete a service or repair with the correct specification part.

Key Features

• Nylon-Insert Locking Thread — The nyloc collar grips the bolt thread and resists loosening from vibration, a critical function on compacting, finishing, and pumping equipment subject to constant operational movement.
• Genuine OEM Specification — Sourced directly from Multiquip, this 3/8-16 nut matches the thread pitch, material grade, and nylon insert dimension specified for original assembly across all listed applications.
• Broad Cross-Equipment Compatibility — A single part number covering ride-on and walk-behind trowels (MD80, MD105, HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, LD6, LD60, HTN27K, HTN28K, and more), water trailers (WT5C, WTE5C, WT5HP, WTE5HP), trash pumps (MQ62TDD, MQ62TK, QP4TKT), mixers (WM120SH, WM120PH, EM120S, EM120P), saws (SP2, SP4, MP series, PS series), generators (DAC7000SS series, DCA20SPXU4F), and light towers (LT12 series, MLT25DCA).
• Vibration Resistance Where It Matters — On trowels, pumps, and saws that run under sustained load, standard nuts can back off over time. The nyloc insert maintains clamp load between service intervals, reducing the risk of loosened fasteners affecting structural or mechanical joints.
• Service-Ready Stock Item — Because part number 10133 spans dozens of Multiquip equipment families, stocking a small quantity covers fastener needs across an entire fleet without managing multiple SKUs.

A nyloc nut — also called a nylon-insert lock nut — is a standard hex nut fitted with a nylon collar at the top of the thread. When the nut is threaded onto a bolt, the nylon deforms around the bolt threads and creates friction that resists self-loosening under vibration and dynamic loads. On construction equipment where engines, vibrating mechanisms, and rotating assemblies generate constant movement, standard nuts can gradually back off and cause joint failure. The nyloc design maintains clamping force between inspections without requiring adhesive or secondary locking hardware. A worn or missing nyloc nut on a critical joint can lead to misalignment, component separation, or accelerated wear on surrounding parts.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.