Description
Overview:
The Stub Axle Fixing Kit, 1 Inch - 5/8 UNF Castle Nut, Washer & Split Pin (MPN 763 031) is a service set for securing a trailer hub or brake drum to a 1 inch (25.4 mm) stub axle. The kit provides the essential retaining hardware needed after bearing or hub maintenance: a 5/8 inch (15.9 mm) UNF castellated nut for precise bearing preload adjustment, a matching flat washer to seat the nut, and a 3.6 x 40 mm split pin to lock the nut through the drilled axle. It is intended for use on light trailers, general utility trailers and plant transport equipment using 1 inch stub axles. Use during repairs, servicing or conversions where the original nut, washer or split pin are worn, damaged or missing, restoring safe and correct hub retention.
Key Features:
- For 1 inch (25.4 mm) trailer stub axles
- Includes 5/8 inch (15.9 mm) UNF castellated nut, flat washer and 3.6 x 40 mm split pin
- UNF fine thread aids accurate hub bearing preload setting
- Nut retained by split pin through the axle for positive locking
- Fits Maypole 1 inch stub axles: MP4189B, MP207, MP210, MP212
- Suitable for hub and drum retention on trailers using drilled 1 inch stub axles
Typical Applications:
Used on the end of a 1 inch (25.4 mm) trailer stub axle to retain the hub or drum assembly after bearing adjustment. Common on small to medium trailers, plant and equipment transporters and general towing setups. Typical fitment includes Maypole 1 inch stub axles MP4189B, MP207, MP210 and MP212 where a 5/8 inch (15.9 mm) UNF castle nut and split pin are specified.
Also known as:
Castle Nut Kit for 1 Inch Stub Axle
Hub Retaining Nut Kit 5/8 UNF
Stub Axle Nut, Washer and Split Pin Set
Maypole part number MP1837B
Product Specifications
| L&S Part No. | 763 031 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |

