| masculin | feminin | neuter | plural | |
|---|---|---|---|---|
| Nominative | насосный | насосная | насосное | насосные |
| Genitive | насосного | насосной | насосного | насосных |
| Dative | насосному | насосной | насосному | насосным |
| Accusative inanimate | насосный | насосную | насосное | насосные |
| Accusative animate | насосного | насосную | насосное | насосных |
| Instrumental | насосным | насосной / насосною | насосным | насосными |
| Prepositional | насосном | насосной | насосном | насосных |
| Short form | насосен | насосна | насосно | насосны |