Original MTD 092.48.778 — locking/safety washer (listed as "SICHERUNGSSCHEIBE EL.D.8") used on MTD cutter‑bar assemblies and similar mower linkages.

Made in steel with the nominal bore for an 8 mm shaft; typical dimensions for a d = 8 safety washer are about 8.4 mm inner seating diameter, ≈13 mm outer diameter and roughly 0.8 mm thickness (DIN/Schnorr style), and it's shown in parts lists with the "EL.D.8" finish marking.

Fits a number of MTD BM-series cutter‑bar mowers (examples include BM 87‑35 and BM 87‑50).

If your cutter bar or linkage is missing a small locking washer or the original is damaged, the original MTD 092.48.778 is the direct replacement to restore proper retention and safe operation — a common item among power tool parts for MTD cutter‑bar assemblies.