KEYSTONE INDUSTRIAL FBGLSS HIN Decoder
Hull Identification Numbers beginning with EFH were assigned by the US Coast Guard to KEYSTONE INDUSTRIAL FBGLSS of RIDGEFIELD, WA. The company is recorded as out of business since 1994 — 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
EFH
Location
RIDGEFIELD, WA
In business
since 1989
Status
Out of business (1994)
KEYSTONE INDUSTRIAL FBGLSS hulls (1989–1994) 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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KEYSTONE INDUSTRIAL FBGLSS HIN FAQ
What does a KEYSTONE INDUSTRIAL FBGLSS HIN look like?
It starts with the three characters "EFH" — the Manufacturer Identification Code the US Coast Guard assigned to KEYSTONE INDUSTRIAL FBGLSS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. KEYSTONE INDUSTRIAL FBGLSS hulls (1989–1994) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is KEYSTONE INDUSTRIAL FBGLSS still in business?
USCG records list KEYSTONE INDUSTRIAL FBGLSS as out of business since 1994. 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 KEYSTONE INDUSTRIAL FBGLSS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. KEYSTONE INDUSTRIAL FBGLSS hulls (1989–1994) 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 WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "KEYSTONE INDUSTRIAL FBGLSS HIN Decoder," carwhere.com/hin-decoder/efh, last verified 2026-06-12.