NF E25-511 Stainless Steel Serrated Conical Washers
Choose the form as well as the nominal size. The supplier lists separate item references for narrow, medium and wide versions, so the same M size does not identify a single washer.
Product photos show the wide form. Narrow and medium forms are listed separately in the specification table; select the required form and item reference when requesting a quotation.
Product overview
- Material listed by the supplier: 304 stainless steel.
- Forms: narrow, medium and wide, retained as separate groups.
- Supplier catalogue reference: NFE25-511.
- Marking: unmarked for every listed reference.
The supplier lists narrow and wide forms from M3 to M12, and the medium form from M3 to M20. The M value is the catalogue nominal fastener size; it is not a measured bore diameter. Confirm the inside diameter, outside diameter, thickness and free height against the required drawing.
Catalogue specifications
Expand a group to compare the listed sizes and item references. The source does not state a row-specific finish or property class for these entries. Availability is confirmed when quoting.
Narrow — 7 catalogue items
| Nominal size | Material | Form | Marking | Item reference |
|---|---|---|---|---|
| M3 | 304 | Narrow | Unmarked | 278270 |
| M4 | 304 | Narrow | Unmarked | 278271 |
| M5 | 304 | Narrow | Unmarked | 278272 |
| M6 | 304 | Narrow | Unmarked | 278273 |
| M8 | 304 | Narrow | Unmarked | 278274 |
| M10 | 304 | Narrow | Unmarked | 278275 |
| M12 | 304 | Narrow | Unmarked | 278276 |
Medium — 10 catalogue items
| Nominal size | Material | Form | Marking | Item reference |
|---|---|---|---|---|
| M3 | 304 | Medium | Unmarked | 203846 |
| M4 | 304 | Medium | Unmarked | 203849 |
| M5 | 304 | Medium | Unmarked | 203851 |
| M6 | 304 | Medium | Unmarked | 203852 |
| M8 | 304 | Medium | Unmarked | 203854 |
| M10 | 304 | Medium | Unmarked | 203856 |
| M12 | 304 | Medium | Unmarked | 203858 |
| M14 | 304 | Medium | Unmarked | 204462 |
| M16 | 304 | Medium | Unmarked | 203860 |
| M20 | 304 | Medium | Unmarked | 203862 |
Wide — 7 catalogue items
| Nominal size | Material | Form | Marking | Item reference |
|---|---|---|---|---|
| M3 | 304 | Wide | Unmarked | 278277 |
| M4 | 304 | Wide | Unmarked | 278278 |
| M5 | 304 | Wide | Unmarked | 278279 |
| M6 | 304 | Wide | Unmarked | 278280 |
| M8 | 304 | Wide | Unmarked | 278281 |
| M10 | 304 | Wide | Unmarked | 278282 |
| M12 | 304 | Wide | Unmarked | 278283 |
Request a quotation
Send the item reference, quantity, required drawing and delivery country. For items available in Dongming stock, dispatch can usually be arranged in around 3 days, subject to stock and order confirmation.



