GREY BARN BOAT WORKS HIN Decoder
Hull Identification Numbers beginning with NHS were assigned by the US Coast Guard to GREY BARN BOAT WORKS of NEWTON, NH. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
NHS
Location
NEWTON, NH
In business
since 1999
Status
Listed active in USCG records
GREY BARN BOAT WORKS hulls (1999–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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GREY BARN BOAT WORKS HIN FAQ
What does a GREY BARN BOAT WORKS HIN look like?
It starts with the three characters "NHS" — the Manufacturer Identification Code the US Coast Guard assigned to GREY BARN BOAT WORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. GREY BARN BOAT WORKS hulls (1999–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is GREY BARN BOAT WORKS still in business?
USCG records list GREY BARN BOAT WORKS of NEWTON, NH in the MIC database (registered 1999).
How do I decode the year on a GREY BARN BOAT WORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. GREY BARN BOAT WORKS hulls (1999–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in NH
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "GREY BARN BOAT WORKS HIN Decoder," carwhere.com/hin-decoder/nhs, last verified 2026-06-12.