4B4277 Washer fit Caterpillar
4B4277 Washer fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
4B4277 Washer fit Caterpillar — SKU 4B4277
4B4277 is a flat washer for use with Caterpillar equipment and 5/16-inch compatible bolts. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is listed in the C-Series Head Bolts category. The available product data identifies the equipment brand and the compatible bolt size, but does not specify individual Caterpillar machine models or series beyond the category reference.
Fitment
- Equipment manufacturer: Caterpillar
- Application category: C-Series Head Bolts
- Compatible bolt size: 5/16 inch
Cross-reference numbers
| SKU | 4B4277 |
| Catalog number | 4B-4277 |
The catalog number 4B-4277 is the hyphenated format corresponding to SKU 4B4277. No additional equipment-manufacturer or supplier part numbers are specified in the available product data.
Specifications
| Part type | Flat washer |
| Application | Washer for 5/16-inch compatible bolts |
| Equipment brand | Caterpillar |
| Category | C-Series Head Bolts |
| Material | Soft steel |
| Material description | Mild steel |
| Minimum yield strength | 140 MPa |
| Inner diameter | 0.346 inch |
| Outer diameter | 0.689 inch |
| Thickness | 0.063 inch |
| Weight | 0.1 lb |
| Listed length | 7.62 cm |
| Listed width | 12.7 cm |
| Listed depth | 1.27 cm |
The washer dimensions specified in the catalog are an inner diameter of 0.346 inch, an outer diameter of 0.689 inch, and a thickness of 0.063 inch. These values define the washer's opening, outside diameter, and material thickness respectively.
The listed material is soft steel, also described as mild steel, with a minimum yield strength of 140 MPa. The catalog records the part weight as 0.1 lb and lists additional product dimensions of 7.62 cm in length, 12.7 cm in width, and 1.27 cm in depth.




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