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HERMAN MILLER UM226 - UM427 [CHROME] LOCK CORES & KEYS



NOTE: The Herman Miller UM226 - UM427 lock cores are different than the CompX Timberline UM226 - UM427 lock cores. The Herman Miller and CompX Timberline cores have different housings and have a different configuration on the back of the core - they also require different control keys to remove and install them. If you are unsure as to which core you need, please contact Customer Service for assistance.



 

If not in stock, it usually takes 24 days to get more.
ETA to EasyKeys: 3/31/2026

LOCK CODE LOCK CORES IN STOCK LOCK CORE: $7.17 KEY: $7.17
UM226 15
[150 MORE ON THE WAY!]
UM227 42
[100 MORE ON THE WAY!]
UM228 47
[50 MORE ON THE WAY!]
UM229 55
[50 MORE ON THE WAY!]
UM230 20
[50 MORE ON THE WAY!]
UM231 30
[100 MORE ON THE WAY!]
UM232 41
[50 MORE ON THE WAY!]
UM233 61
UM234 23
[50 MORE ON THE WAY!]
UM235 15
[50 MORE ON THE WAY!]
UM236 33
[50 MORE ON THE WAY!]
UM237 36
[50 MORE ON THE WAY!]
UM238 43
UM239 40
[50 MORE ON THE WAY!]
UM240 15
[50 MORE ON THE WAY!]
UM241 37
[50 MORE ON THE WAY!]
UM242 61
UM243 43
[50 MORE ON THE WAY!]
UM244 45
UM245 45
UM246 41
[50 MORE ON THE WAY!]
UM247 66
UM248 51
UM249 45
UM250 54
UM251 48
UM252 49
UM253 42
UM254 56
UM255 51
UM256 34
[50 MORE ON THE WAY!]
UM257 22
UM258 54
UM259 56
UM260 43
UM261 56
UM262 54
UM263 46
UM264 49
UM265 41
UM266 34
UM267 40
UM268 41
UM269 38
UM270 39
UM271 41
UM272 41
UM273 39
UM274 33
UM275 38
UM276 34
UM277 42
UM278 41
UM279 44
UM280 42
UM281 43
UM282 0
[50 MORE ON THE WAY!]
UM283 0
[50 MORE ON THE WAY!]
UM284 0
[50 MORE ON THE WAY!]
UM285 0
[50 MORE ON THE WAY!]
UM286 0
[50 MORE ON THE WAY!]
UM287 0
[50 MORE ON THE WAY!]
UM288 0
[50 MORE ON THE WAY!]
UM289 0
[50 MORE ON THE WAY!]
UM290 0
[50 MORE ON THE WAY!]
UM291 0
[50 MORE ON THE WAY!]
UM292 0
[50 MORE ON THE WAY!]
UM293 0
[50 MORE ON THE WAY!]
UM294 0
[50 MORE ON THE WAY!]
UM295 0
[50 MORE ON THE WAY!]
UM296 0
[50 MORE ON THE WAY!]
UM297 0
[50 MORE ON THE WAY!]
UM298 0
[50 MORE ON THE WAY!]
UM299 0
[50 MORE ON THE WAY!]
UM300 2
[50 MORE ON THE WAY!]
UM301 0
[50 MORE ON THE WAY!]
UM302 0
[50 MORE ON THE WAY!]
UM303 0
[50 MORE ON THE WAY!]
UM304 1
[50 MORE ON THE WAY!]
UM305 0
[50 MORE ON THE WAY!]
UM306 0
[50 MORE ON THE WAY!]
UM307 0
[50 MORE ON THE WAY!]
UM308 0
[50 MORE ON THE WAY!]
UM309 0
[50 MORE ON THE WAY!]
UM310 0
[50 MORE ON THE WAY!]
UM311 0
[50 MORE ON THE WAY!]
UM312 0
[50 MORE ON THE WAY!]
UM313 0
[50 MORE ON THE WAY!]
UM314 0
[50 MORE ON THE WAY!]
UM315 0
[50 MORE ON THE WAY!]
UM316 0
[50 MORE ON THE WAY!]
UM317 0
[50 MORE ON THE WAY!]
UM318 0
[50 MORE ON THE WAY!]
UM319 0
[50 MORE ON THE WAY!]
UM320 0
[50 MORE ON THE WAY!]
UM321 0
[50 MORE ON THE WAY!]
UM322 0
[50 MORE ON THE WAY!]
UM323 0
[50 MORE ON THE WAY!]
UM324 0
[50 MORE ON THE WAY!]
UM325 0
[50 MORE ON THE WAY!]
UM326 0
[50 MORE ON THE WAY!]
UM327 0
[50 MORE ON THE WAY!]
UM328 0
[50 MORE ON THE WAY!]
UM329 0
[50 MORE ON THE WAY!]
UM330 0
[50 MORE ON THE WAY!]
UM331 0
[50 MORE ON THE WAY!]
UM332 0
[50 MORE ON THE WAY!]
UM333 0
[50 MORE ON THE WAY!]
UM334 0
[50 MORE ON THE WAY!]
UM335 0
[50 MORE ON THE WAY!]
UM336 0
[50 MORE ON THE WAY!]
UM337 0
[50 MORE ON THE WAY!]
UM338 0
[50 MORE ON THE WAY!]
UM339 0
[50 MORE ON THE WAY!]
UM340 0
[50 MORE ON THE WAY!]
UM341 0
[50 MORE ON THE WAY!]
UM342 0
[50 MORE ON THE WAY!]
UM343 0
[50 MORE ON THE WAY!]
UM344 0
[50 MORE ON THE WAY!]
UM345 0
[50 MORE ON THE WAY!]
UM346 0
[50 MORE ON THE WAY!]
UM347 0
[50 MORE ON THE WAY!]
UM348 0
[50 MORE ON THE WAY!]
UM349 0
[50 MORE ON THE WAY!]
UM350 0
[50 MORE ON THE WAY!]
UM351 0
[50 MORE ON THE WAY!]
UM352 0
[50 MORE ON THE WAY!]
UM353 0
[50 MORE ON THE WAY!]
UM354 0
[50 MORE ON THE WAY!]
UM355 0
[50 MORE ON THE WAY!]
UM356 0
[50 MORE ON THE WAY!]
UM357 0
[50 MORE ON THE WAY!]
UM358 0
[50 MORE ON THE WAY!]
UM359 0
[50 MORE ON THE WAY!]
UM360 0
[50 MORE ON THE WAY!]
UM361 0
[50 MORE ON THE WAY!]
UM362 0
[50 MORE ON THE WAY!]
UM363 0
[50 MORE ON THE WAY!]
UM364 0
[50 MORE ON THE WAY!]
UM365 0
[50 MORE ON THE WAY!]
UM366 0
[50 MORE ON THE WAY!]
UM367 0
[50 MORE ON THE WAY!]
UM368 0
[50 MORE ON THE WAY!]
UM369 0
[50 MORE ON THE WAY!]
UM370 0
[50 MORE ON THE WAY!]
UM371 0
[50 MORE ON THE WAY!]
UM372 0
[50 MORE ON THE WAY!]
UM373 3
[50 MORE ON THE WAY!]
UM374 0
[50 MORE ON THE WAY!]
UM375 0
[50 MORE ON THE WAY!]
UM376 32
UM377 0
[50 MORE ON THE WAY!]
UM378 0
[50 MORE ON THE WAY!]
UM379 0
[50 MORE ON THE WAY!]
UM380 0
[50 MORE ON THE WAY!]
UM381 0
[50 MORE ON THE WAY!]
UM382 0
[50 MORE ON THE WAY!]
UM383 0
[50 MORE ON THE WAY!]
UM384 0
[50 MORE ON THE WAY!]
UM385 0
[50 MORE ON THE WAY!]
UM386 0
[50 MORE ON THE WAY!]
UM387 0
[50 MORE ON THE WAY!]
UM388 0
[50 MORE ON THE WAY!]
UM389 0
[50 MORE ON THE WAY!]
UM390 0
[50 MORE ON THE WAY!]
UM391 0
[50 MORE ON THE WAY!]
UM392 0
[50 MORE ON THE WAY!]
UM393 0
[50 MORE ON THE WAY!]
UM394 0
[50 MORE ON THE WAY!]
UM395 0
[50 MORE ON THE WAY!]
UM396 0
[50 MORE ON THE WAY!]
UM397 0
[50 MORE ON THE WAY!]
UM398 0
[50 MORE ON THE WAY!]
UM399 0
[50 MORE ON THE WAY!]
UM400 0
[50 MORE ON THE WAY!]
UM401 0
[50 MORE ON THE WAY!]
UM402 0
[50 MORE ON THE WAY!]
UM403 0
[50 MORE ON THE WAY!]
UM404 0
[50 MORE ON THE WAY!]
UM405 0
[50 MORE ON THE WAY!]
UM406 0
[50 MORE ON THE WAY!]
UM407 0
[50 MORE ON THE WAY!]
UM408 0
[50 MORE ON THE WAY!]
UM409 0
[50 MORE ON THE WAY!]
UM410 0
[50 MORE ON THE WAY!]
UM411 0
[50 MORE ON THE WAY!]
UM412 0
[50 MORE ON THE WAY!]
UM413 0
[50 MORE ON THE WAY!]
UM414 0
[50 MORE ON THE WAY!]
UM415 0
[50 MORE ON THE WAY!]
UM416 0
[50 MORE ON THE WAY!]
UM417 0
[50 MORE ON THE WAY!]
UM418 0
[50 MORE ON THE WAY!]
UM419 0
[50 MORE ON THE WAY!]
UM420 0
[50 MORE ON THE WAY!]
UM421 0
[50 MORE ON THE WAY!]
UM422 0
[50 MORE ON THE WAY!]
UM423 0
[50 MORE ON THE WAY!]
UM424 0
[50 MORE ON THE WAY!]
UM425 0
[50 MORE ON THE WAY!]
UM426 0
[50 MORE ON THE WAY!]
UM427 0
[50 MORE ON THE WAY!]


Want it delivered Thursday, February 26, 2026? Order by 5pm EST Wednesday, February 25, 2026 choose FedEx Overnight shipping.

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