Many land and air forces use it as well. RCAF, for example.
The USN uses it in addition to the unified insignia; all US military personell are suposed to be trained on BOTH systems; my SMRT from basic in 1987 has a table with USN/USCG stripes... My 1983 Blujacket's Manual has all grades and rank insignia for all US Forces. Navy and CG Unified insignia used on collars, raincoats, and battledress uniforms; Army & AF uses on all uniforms. Navy & CG Cuff stripes on Dress and mess uniforms, service uniform shoulder boards, and some office uniforms. USPHS uses navy uniforms and officer ranks.
Canada: Cuff stripes and/or matching shoulder strap slip-covers with stripes for all services officer ranks.
Portugul: stripes in variety of places by uniform, but same pattern in 3 services for all worn locations.
Romania: identical across 3 services. (Essentially soviet pattern, but stripes across boards replace stars)
Algeria, Angola: unified insignia (Army, AF, and Naval services)
Belarus: identical Army and AF insigia (and customs, too), no navy.
China: unified insignia for Army, AF, Navy; very close variant for Customs, Police, and Armed police; all grades. Military matches soviet system.
Cuba: unified across 4 services (Army, Navy, AF, Police)
France: unified across 6 services (Army, Navy, AF, CG, National Police, National Gendarmerie (is this the same as the Nat. Police?), and FFL)
Germany: Army & AF use one officer system, navy another; all three use same enlisted insignia!
Nederlands: uses rings on cuff for Airforces as well in same pattern as navy, different titles. Also, their senior service is the Army, which hs distinctive rank insignia.
NZ: same stripes for Navy and Air; Army differs (matching UK Royal Army)
Aus: Navy and Air Force same pattern; Army differs (matching UK Royal Army)
Russians use shoulder boards with joint services insignia; the cuff stripes are not required on the duty uniforms; all shoulder marks are joint services. The soviet era, they also used the same shoulder loop stripes as all other soviet forces for other ranks; they have simply turned them into chevrons now from simple stripes across.
Please check YOUR SOURCES... they don't all say what you think they do. Specifically the Russian Navy one... BTW, the Kremlin Website has the uniform regs online. (If you can read Russian, at least.)
http://www.defence.gov.au/badges_of_rank.cfm
http://www.nzdf.mil.nz/corporate/badges-of-rank/default.htm
http://www.forces.gc.ca/site/about/Insignia/index_e.asp
http://en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO_Navies_Officers
http://en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO_Armies_Officers
http://en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO_Air_Forces_Officers
http://www.defenselink.mil/specials/insignias/officers.html
http://www.uniforminsignia.net/index.php
It is more common for one service to be out of line, and often, it's the army, not the navy. If there is a marine service, it might be either.
A few European countries being the exception, not the rule. I can go on. I won't.
The last century has seen most nations centralize on a single rank system. Heck, Alaska's police forces use the same insignia as the US unified insignia; the dress uniforms of some ALSO use the Navy style cuff stripes. Quite a number of law enforcement agencies thrughout the US also use the same unified rank insignia. As does the CAP, and several uniformed services in the Fed civil service.