504 (Fife) Coast Regiment RA(TA) was formed from a part of Fife Heavy Regiment RA(TA), in July 1940. RHQ was placed in suspended animation and the batteries moved to 505 Coast Regiment RA(TA) in April 1944. The unit was amalgamated with 507 Coast Regiment RA(TA) and reconstituted in January 1947 as 362 Medium Regiment RA(TA).
| Jul 40 | Formed from part of Fife Heavy Regiment | |
| Jul 40 | Home Forces | UK |
| Dec 42 | Incholm Fire Command | Incholm, Fife, UK |
| Apr 44 | Suspended animation |
Batteries
| Jul 40 | A, B, C, D |
| Apr 41 | 245, 246, 247, 248, 249, 250 |
| May 41 | 176, 245, 247, 248, 249, 250 |
| Jun 42 | 176, 186, 245, 247, 248, 249, 250 |
| Jul 42 | 176, 186, 245, 247, 248, 250 |
