The Multiquip 49253 Castle Nut 3/4 is a genuine OEM fastener designed for WSC55, EM120, and EM900SD equipment. As a direct OEM component, this castle nut meets the original engineering specifications for the models it serves, ensuring a consistent, secure fit without guesswork. Sourced directly through authorized Multiquip supply channels, 49253 is the same part installed during original production and is fully verified for use on WSC55, EM120, and EM900SD units.
Key Features
- Genuine OEM Construction — Manufactured to the exact thread pitch, material grade, and slot geometry specified for this application — no dimensional compromises.
- Cotter Pin Retention Compatibility — Castle slots are precisely cut to accept a standard cotter pin, locking the nut securely in position once torqued to spec.
- Verified Fitment — Confirmed for WSC55, EM120, and EM900SD equipment; cross-reference part number 49253 against your machine's parts manual before ordering.
- Maintains Secure Clamping Force — A correctly seated castle nut prevents shaft or spindle movement under load, protecting surrounding components from wear caused by loosening fasteners.
- Direct OEM Replacement — Installs in place of the original fastener with no machining or thread modification needed; thread engagement matches the original hardware exactly.
A castle nut — also called a castellated nut — is a hex nut with a series of slots cut into one end, designed to be used with a cotter pin or safety wire that passes through a drilled hole in the bolt or shaft. This locking arrangement prevents the nut from backing off under vibration or cyclical loading, which is critical on rotating or reciprocating assemblies where a loose fastener can cause rapid damage to shafts, bearings, and adjacent components. When a castle nut is worn, stripped, or missing its cotter pin, the assembly it secures becomes vulnerable to unintended loosening during operation.
For fitment questions or to confirm this part is correct for your specific serial number, contact the DHS Equipment team directly.
Part Details
| Part Number | 49253 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Castle Nut 3/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Chemical Spray Systems | WSC55 |
| Essick Mixers | EM120 |
| Essick Mixers | EM900SD |
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.
