HAMPSHIRE MFG CORP HIN Decoder
Hull Identification Numbers beginning with HMP were assigned by the US Coast Guard to HAMPSHIRE MFG CORP of NASHUA, NH. 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
HMP
Location
NASHUA, NH
In business
since 1972
Status
Out of business (1983)
HAMPSHIRE MFG CORP hulls (1972–1983) 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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HAMPSHIRE MFG CORP HIN FAQ
What does a HAMPSHIRE MFG CORP HIN look like?
It starts with the three characters "HMP" — the Manufacturer Identification Code the US Coast Guard assigned to HAMPSHIRE MFG CORP — followed by a 5-character hull serial and a 4-character date code, 12 characters total. HAMPSHIRE MFG CORP hulls (1972–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is HAMPSHIRE MFG CORP still in business?
USCG records list HAMPSHIRE MFG CORP 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 HAMPSHIRE MFG CORP HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. HAMPSHIRE MFG CORP hulls (1972–1983) 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 NH
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "HAMPSHIRE MFG CORP HIN Decoder," carwhere.com/hin-decoder/hmp, last verified 2026-06-12.