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HERMAN MILLER UM226 - UM427 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 82
[200 MORE ON THE WAY!]
UM227 0
[100 MORE ON THE WAY!]
UM228 39
[100 MORE ON THE WAY!]
UM229 61
[100 MORE ON THE WAY!]
UM230 24
[100 MORE ON THE WAY!]
UM231 9
[100 MORE ON THE WAY!]
UM232 25
[50 MORE ON THE WAY!]
UM233 2
[100 MORE ON THE WAY!]
UM234 69
UM235 53
[100 MORE ON THE WAY!]
UM236 49
[50 MORE ON THE WAY!]
UM237 34
[50 MORE ON THE WAY!]
UM238 50
UM239 28
[50 MORE ON THE WAY!]
UM240 40
[50 MORE ON THE WAY!]
UM241 20
[50 MORE ON THE WAY!]
UM242 16
[50 MORE ON THE WAY!]
UM243 16
[50 MORE ON THE WAY!]
UM244 14
[50 MORE ON THE WAY!]
UM245 48
UM246 61
UM247 77
UM248 57
UM249 11
[50 MORE ON THE WAY!]
UM250 54
[50 MORE ON THE WAY!]
UM251 24
[50 MORE ON THE WAY!]
UM252 31
UM253 50
UM254 39
UM255 61
[50 MORE ON THE WAY!]
UM256 54
UM257 54
UM258 52
UM259 5
[50 MORE ON THE WAY!]
UM260 35
[50 MORE ON THE WAY!]
UM261 33
UM262 40
UM263 29
UM264 47
UM265 17
[50 MORE ON THE WAY!]
UM266 30
UM267 46
UM268 59
UM269 54
UM270 24
UM271 27
UM272 40
UM273 46
UM274 36
UM275 20
[50 MORE ON THE WAY!]
UM276 30
[50 MORE ON THE WAY!]
UM277 22
UM278 20
[50 MORE ON THE WAY!]
UM279 55
UM280 64
UM281 42
UM282 54
UM283 63
[50 MORE ON THE WAY!]
UM284 42
UM285 33
UM286 40
UM287 57
UM288 60
UM289 47
UM290 46
UM291 12
UM292 36
UM293 53
UM294 55
UM295 64
UM296 64
UM297 49
UM298 50
UM299 39
UM300 50
UM301 9
[50 MORE ON THE WAY!]
UM302 38
UM303 31
UM304 0
[WE CAN BUILD MORE RIGHT AWAY!]
UM305 50
UM306 58
UM307 36
UM308 42
UM309 41
UM310 31
UM311 37
UM312 35
UM313 50
UM314 29
UM315 49
UM316 29
UM317 19
UM318 46
UM319 50
UM320 51
UM321 33
[50 MORE ON THE WAY!]
UM322 56
UM323 54
UM324 73
[50 MORE ON THE WAY!]
UM325 43
UM326 19
UM327 0
[50 MORE ON THE WAY!]
UM328 40
UM329 29
UM330 60
UM331 48
UM332 47
UM333 23
[50 MORE ON THE WAY!]
UM334 37
UM335 34
UM336 60
UM337 30
UM338 13
UM339 22
UM340 8
[50 MORE ON THE WAY!]
UM341 15
UM342 10
[50 MORE ON THE WAY!]
UM343 7
[50 MORE ON THE WAY!]
UM344 14
UM345 22
UM346 62
UM347 30
UM348 45
UM349 40
UM350 35
UM351 25
UM352 23
UM353 88
[50 MORE ON THE WAY!]
UM354 85
[50 MORE ON THE WAY!]
UM355 24
UM356 11
[50 MORE ON THE WAY!]
UM357 16
UM358 23
UM359 25
UM360 12
UM361 19
UM362 35
UM363 23
UM364 20
UM365 17
UM366 36
UM367 8
[50 MORE ON THE WAY!]
UM368 33
UM369 35
UM370 20
UM371 3
[50 MORE ON THE WAY!]
UM372 31
UM373 20
UM374 28
UM375 35
UM376 29
UM377 31
UM378 20
UM379 18
[50 MORE ON THE WAY!]
UM380 38
UM381 33
UM382 43
UM383 27
UM384 21
UM385 28
UM386 33
UM387 24
UM388 42
UM389 64
[50 MORE ON THE WAY!]
UM390 62
UM391 26
UM392 33
UM393 29
UM394 8
[50 MORE ON THE WAY!]
UM395 28
UM396 18
UM397 36
UM398 32
UM399 34
UM400 50
[50 MORE ON THE WAY!]
UM401 41
UM402 5
[50 MORE ON THE WAY!]
UM403 35
[50 MORE ON THE WAY!]
UM404 0
[50 MORE ON THE WAY!]
UM405 13
UM406 21
UM407 12
UM408 0
[50 MORE ON THE WAY!]
UM409 9
[50 MORE ON THE WAY!]
UM410 18
UM411 29
UM413 19
UM414 0
[50 MORE ON THE WAY!]
UM415 14
UM416 20
UM417 14
UM418 0
[50 MORE ON THE WAY!]
UM419 5
[50 MORE ON THE WAY!]
UM420 25
[50 MORE ON THE WAY!]
UM421 35
UM422 12
[50 MORE ON THE WAY!]
UM423 47
UM424 9
[50 MORE ON THE WAY!]
UM425 56
UM426 54
UM427 30


Closed on Monday, February 16th: President's Day
Want it delivered Monday, February 16, 2026? Order by 5pm EST Friday, February 13, 2026 choose FedEx Overnight shipping.

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