TRINITY PLASTICS INC HIN Decoder
Hull Identification Numbers beginning with TNN were assigned by the US Coast Guard to TRINITY PLASTICS INC of YUKON, OK. The company is recorded as out of business since 1997 — 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
TNN
Location
YUKON, OK
In business
since 1995
Status
Out of business (1997)
TRINITY PLASTICS INC hulls (1995–1997) 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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TRINITY PLASTICS INC HIN FAQ
What does a TRINITY PLASTICS INC HIN look like?
It starts with the three characters "TNN" — the Manufacturer Identification Code the US Coast Guard assigned to TRINITY PLASTICS INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TRINITY PLASTICS INC hulls (1995–1997) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is TRINITY PLASTICS INC still in business?
USCG records list TRINITY PLASTICS INC as out of business since 1997. 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 TRINITY PLASTICS INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TRINITY PLASTICS INC hulls (1995–1997) 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 OK
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "TRINITY PLASTICS INC HIN Decoder," carwhere.com/hin-decoder/tnn, last verified 2026-06-12.