| 251 |  SUSAT Optical Sight collimator sights | newbie | 0.417 kg | — | — |
| 252 |  Survivor other | master | — | — | — |
| 253 |  Survivor other | master | — | — | — |
| 254 |  Survival SP8 Ontario Machete melee | veteran | 0.63 kg | — | — |
| 255 |  Surpluses other | master | — | — | — |
| 256 |  SURPAT—Urban Noise Camouflage other | newbie | — | — | — |
| 257 |  SURPAT—Urban Noise Camouflage other | newbie | — | — | — |
| 258 |  SURPAT Camouflage other | newbie | — | — | — |
| 259 |  SURPAT Camouflage other | newbie | — | — | — |
| 260 |  SureFire SOCOM556-RC2 Silencer barrel | stalker | 0.48 kg | — | — |
| 261 |  SureFire Pro Comp 7.62x51 barrel | stalker | 0.113 kg | — | — |
| 262 |  Supersonic other | master | 0.1 kg | — | — |
| 263 |  Sun thermal | default | 0.2 kg | 32,500 rubles | — |
| 264 |  Sulfuric Salt misc | stalker | 0.1 kg | 60 rubles | — |
| 265 |  Sulfuric Acid misc | newbie | 0.1 kg | 59 rubles | — |
| 266 |  Subtropics drink | master | 0.33 kg | — | — |
| 267 |  Substance 07270 other | master | 0.04 kg | 48 rubles | — |
| 268 |  Strong Steel misc | stalker | 0.1 kg | 78 rubles | — |
| 269 |  Strong Mutt's Tail misc | default | 0.3 kg | 590 rubles | — |
| 270 |  Strong Burn Cream medicine | master | 0.025 kg | 201 rubles | — |
| 271 |  Strong Boar's Hoof misc | veteran | 0.6 kg | 1,460 rubles | — |
| 272 |  Striker Armored Suit combat | stalker | 9 kg | — | 100% |
| 273 |  STRIKE medicine | stalker | 0.1 kg | — | — |
| 274 |  Stress Fest other arts | default | 0.3 kg | 10,080 rubles | — |
| 275 |  Strength Stimulator medicine | master | 0.075 kg | 1,043 rubles | — |
| 276 |  Stranger combat | stalker | 6 kg | — | 100% |
| 277 |  Strange Artifact misc | newbie | 0.5 kg | — | — |
| 278 |  Stove other | veteran | — | — | — |
| 279 |  Storyteller's Cloak other | master | — | — | — |
| 280 |  Stool other | default | — | — | — |
| 281 |  STOMP medicine | veteran | 0.1 kg | — | — |
| 282 |  Stinky Root other | newbie | 0.03 kg | 16 rubles | — |
| 283 |  Sting other | master | — | — | — |
| 284 |  Sticky Root other | newbie | 0.035 kg | 1,600 rubles | — |
| 285 |  Sticky Burr biochemical | default | 0.4 kg | 2,900 rubles | — |
| 286 |  STG-44 Part misc | veteran | — | — | — |
| 287 |  STG-44 submachine gun | veteran | 2.04 kg | — | 100% |
| 288 |  Steyr Scout sniper rifle | stalker | 3.3 kg | — | 100% |
| 289 |  Steyr AUG A3 9mm XS submachine gun | veteran | 3.3 kg | — | 100% |
| 290 |  Steyr AUG A3 assault rifle | veteran | 3.6 kg | — | 100% |
| 291 |  Steyr AUG A2 assault rifle | veteran | 3.6 kg | — | 100% |
| 292 |  Steyr AUG A1 assault rifle | veteran | 3.6 kg | — | 100% |
| 293 |  Steyr AUG 9mm submachine gun | veteran | 3.3 kg | — | 100% |
| 294 |  Steiner Optical Sight collimator sights | master | 0.59 kg | — | — |
| 295 |  Steel Tiger Karambit melee | master | 0.153 kg | — | — |
| 296 |  Steel Talisman other | master | — | — | — |
| 297 |  Steel Plate V other | default | 3 kg | — | 100% |
| 298 |  Steel Plate IV other | default | 3 kg | — | 100% |
| 299 |  Steel Plate III other | default | 3 kg | — | 100% |
| 300 |  Steel Plate II other | default | 3 kg | — | 100% |
