Reading Hull Numbers - SailNet Community
LinkBack Thread Tools
post #1 of 1 Old 07-09-2002 Thread Starter
Contributing Authors
Join Date: Jan 2000
Posts: 45
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
Reading Hull Numbers

What are hull numbers, and how should they be read?

Kathy Barron responds:
Thanks for your question. The numbers assigned to a specific boat serve to identify it by name of manufacturer and by date and serial number. To better understand hull numbers, take the example of SNA 255 64 M82I, which might appear on the upper right hand portion of a boat's transom. The first three letters represent the manufacturer's name; SNA in this case is Snark. The next five digits are the hull's serial number. The following characters represent the date of certification. In this case the boat was built in 1982 (M82) and "I" represents the month of construction, April. So you have a Snark that was built in April of 1982, with a serial number of 25564.

For vessels built or imported after November 1, 1972, and prior to August 1, 1984, the month of manufacture is a letter code that starts with August being "A," September being "B," etc. Another identifier for the month and year of manufacture may show up as four digits. The first two digits would represent the month and the last two would be the year. For instance, your boat could also have been marked "SNA 25564 0482."

For vessels built or imported after August 1, 1984, the code changes to January being "A," February being "B," etc. The last four characters represent the month and year of manufacture or certification.

The hull number, prior to August 1, 1984, is located on the starboard, upper part of the transom just below the top. If the vessel has no transom, the HIN should be located on the starboard side rear near the top within one foot of the stern. After August 1, 1984, the hull number should also be located inside the boat, unexposed.

Kathy Barron is offline  
Closed Thread

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may not post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is Off
Smilies are On
[IMG] code is Off
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome