The following was provided to me by a retired Brit EOD tech, I have been told all other information about these items is still classified so I can’t get additional info.
US: 9N235.
UR: Cyrillic 9235 Cyrillic (Soviet). (this designation as shown came from a Brit EOD book)
Main charge: RDX/aluminum, 315 grams
Complete bomb with fuze: 1.75 kilograms (3.86 pounds).
Not known which system is deployed from, is impact fired and has a 2 minute SD
US: 9N210
UR: Cyrillic 9H210 (Soviet) (this designation came from a Brit EOD book)
Deployed from 220mm MRL, impact fired with 2 minute SD
Main charge 272 grams (9.6 ounces) of an RDX/wax
The bomb weighs approximately 1.8 kilograms (4.0 pounds).
Interesting that the Cyrillic designations appear to be different, but when translated both come out as a “N”. This maybe an error either when the items were first found, the letter was misread, etc. It is also possible that when the document was written then saved as a pdf file the symbol was read wrong and same goes when copying from pdf to word the symbol can be misread. All I know is the info I was provided gave the designations as listed.
In closing, I think we can all agree these are two different subs, that they are identical in shape and size but do differ in explosive type and weight. So for me the only question that remains is the designation for the 9N235 is it correct. I do not fully understand the following, but then that does back to how the designations were read or translated (I think)
Official military index - 9H235.
9N210 for 9K57, 9N235 for 9K58.


US: 9N235.
UR: Cyrillic 9235 Cyrillic (Soviet). (this designation as shown came from a Brit EOD book)
Main charge: RDX/aluminum, 315 grams
Complete bomb with fuze: 1.75 kilograms (3.86 pounds).
Not known which system is deployed from, is impact fired and has a 2 minute SD
US: 9N210
UR: Cyrillic 9H210 (Soviet) (this designation came from a Brit EOD book)
Deployed from 220mm MRL, impact fired with 2 minute SD
Main charge 272 grams (9.6 ounces) of an RDX/wax
The bomb weighs approximately 1.8 kilograms (4.0 pounds).
Interesting that the Cyrillic designations appear to be different, but when translated both come out as a “N”. This maybe an error either when the items were first found, the letter was misread, etc. It is also possible that when the document was written then saved as a pdf file the symbol was read wrong and same goes when copying from pdf to word the symbol can be misread. All I know is the info I was provided gave the designations as listed.
In closing, I think we can all agree these are two different subs, that they are identical in shape and size but do differ in explosive type and weight. So for me the only question that remains is the designation for the 9N235 is it correct. I do not fully understand the following, but then that does back to how the designations were read or translated (I think)
Official military index - 9H235.
9N210 for 9K57, 9N235 for 9K58.


