
SKF
Lock washer for metric lock nuts
RFQ
Estimated delivery: 13 Jul 2026 (overseas stock, ~4 weeks)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
Lock washer for metric lock nuts
MB and MBL lock washers are locking devices, used to secure KM, KML and HM .. T lock nuts onto a shaft or adapter sleeve and prevent unintentional loosening. MB .. A is a stronger version of the MB washer. The lock washers engage a keyway in the shaft or adapter sleeve thread. They lock the nut in position when one of the washer tabs is bent into one of the slots in the outside diameter of the lock nut. A new lock washer should be used each time the corresponding lock nut is installed.
Select by shaft diameter, load direction, speed, mounting space, sealing/lubrication condition, and compatibility with the existing part number.
| Symbol | Value | Description |
|---|---|---|
| d | 280 mm | Bore diameter |
| D | 362 mm | Outside diameter |
| Code | Description |
|---|---|
| 고정 장치 | Lock washer |
| 제품 순 중량 | 0.739 kg |
| eClass 코드 | 23-11-07-05 |
| UNSPSC 코드 | 31163218 |
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
SKFMB56SKF MB56RFQ
Estimated delivery: 13 Jul 2026 (overseas stock, ~4 weeks)

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