NORTHSHORE MARINE HIN Decoder
Hull Identification Numbers beginning with NMK were assigned by the US Coast Guard to NORTHSHORE MARINE of BOTHELL, WA. The company is recorded as out of business since 1983 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
NMK
Location
BOTHELL, WA
In business
since 1976
Status
Out of business (1983)
NORTHSHORE MARINE hulls (1976–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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NORTHSHORE MARINE HIN FAQ
What does a NORTHSHORE MARINE HIN look like?
It starts with the three characters "NMK" — the Manufacturer Identification Code the US Coast Guard assigned to NORTHSHORE MARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. NORTHSHORE MARINE hulls (1976–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is NORTHSHORE MARINE still in business?
USCG records list NORTHSHORE MARINE as out of business since 1983. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a NORTHSHORE MARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. NORTHSHORE MARINE hulls (1976–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "NORTHSHORE MARINE HIN Decoder," carwhere.com/hin-decoder/nmk, last verified 2026-06-12.