easykeys.com logo
Cart
  • New Products
  • What We Offer
  • Browse Manufacturers
  • Support
  • KeyNotes
  • Login / Signup login
  • Shopping Cart Cart
  1. Home
  2. Browse Manufacturers
  3. CompX Chicago
  4. CompX Chicago X301 - X500
  5. Lock Code List

Hint: Need a replacement key? Just search by your lock code—stamped on the face of your lock or key—and instantly find the correct match.

Search Tips!

Key Instructions
Some codes apply to multiple manufacturers. Please select a manufacturer to filter results.
Need Assistance?

Our customer service team is here to help you with any questions or issues.

Send Us Photos!

Search

CompX Chicago X301 - X500 Series Lock Code List

X301
X302
X303
X304
X305
X306
X307
X308
X309
X310
X311
X312
X313
X314
X315
X316
X317
X318
X319
X320
X321
X322
X323
X324
X325
X326
X327
X328
X329
X330
X331
X332
X333
X334
X335
X336
X337
X338
X339
X340
X341
X342
X343
X344
X345
X346
X347
X348
X349
X350
X351
X352
X353
X354
X355
X356
X357
X358
X359
X360
X361
X362
X363
X364
X365
X366
X367
X368
X369
X370
X371
X372
X373
X374
X375
X376
X377
X378
X379
X380
X381
X382
X383
X384
X385
X386
X387
X388
X389
X390
X391
X392
X393
X394
X395
X396
X397
X398
X399
X400
X401
X402
X403
X404
X405
X406
X407
X408
X409
X410
X411
X412
X413
X414
X415
X416
X417
X418
X419
X420
X421
X422
X423
X424
X425
X426
X427
X428
X429
X430
X431
X432
X433
X434
X435
X436
X437
X438
X439
X440
X441
X442
X443
X444
X445
X446
X447
X448
X449
X450
X451
X452
X453
X454
X455
X456
X457
X458
X459
X460
X461
X462
X463
X464
X465
X466
X467
X468
X469
X470
X471
X472
X473
X474
X475
X476
X477
X478
X479
X480
X481
X482
X483
X484
X485
X486
X487
X488
X489
X490
X491
X492
X493
X494
X495
X496
X497
X498
X499
X500
Added To Cart!
Closed on Friday, July 3rd: Independence Day (Observed)
Want it delivered Thursday, July 2, 2026? Order by 5pm EST Wednesday, July 1, 2026 choose FedEx Overnight shipping.
shopping cart image My Cart

There are no items in your cart.

Spend $35+ on qualifying items to unlock FREE U.S. domestic shipping.
usps shipping

Orders of $35 or more of eligible items may qualify for FREE Shipping.

We provide tracking & delivery confirmations on all USPS & FedEx shipments. View Terms

chat service picture

Email & Live
Chat Service

8:30 AM - 5:00 PM ET M - F
Use LiveChat & Email
(real humans)

tax paper image

Taxes & Tax Exempt?

State sales tax laws & Setting up a tax exempt account before placing your order.

 

New Products

Check out our most recently added products!

Check out our most recently added products!

 

Key Rings

Color Split, Giveaway, Cable & More Key Rings

Color Split, Giveaway, Cable & More Key Rings

 

Graphite Lubricant

Use a lubricant when using new keys in old locks

Use a lubricant when using new keys in old locks

 

Magnifying Card Light

I Can't Read My Lock Code. How Do I Read It?

I Can't Read My Lock Code. How Do I Read It?

EasyKeys Google Reviews
Rate Us on Google
★★★★★ Join our happy customers!
Customer Reviews

What Our Customers Say

Honest feedback from customers who purchased from EasyKeys.
★★★★★
Testimonials
★★★★★
Trustpilot
★★★★★
Google Reviews
Showing 20 most recent reviews
Delbert
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Nice”
Jeff
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Quick easy”
Anand
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Excellent website, very easy to us”
Jose
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Amazing service, amazing customer service and very fast delivery, 5 star all the way around.”
Everett
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Used live chat but is was not helpful”
Kevin
Jun 30, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy transaction, thank you”
John
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Real good service about the wrong kid at first, but it’ll be OK. My fault.”
Suzanne
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to use”
Nasser
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“easy and friendly”
Bert
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Great CS & products.”
Randez
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to order”
Maxime
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Awesome ”
Monte
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Best experience ordering keys couldn't get from any locksmith. ”
Jesse
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Quick and easy. ”
Rose
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Eazy”
Patricia
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Very easy to use but also safe! ”
Brandon
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Very easy and fast turnaround on receiving and purchasing keys.”
BOBBY
Jun 29, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Super Easy ”
Michael
Jun 28, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Excellent service. Thanks. ”
Roy
Jun 28, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to order and waiting for key”
easykeys logo

youtube logo google map logo

  • Get Started
  • What We Offer
  • Browse Manufacturers
  • Contact Us
  • Jobs
  • Blog
  • Partner Benefits
  • Customer reviews
  • About EasyKeys
  • Support
  • Terms
  • Return Policy
  • Subscribe to our newsletter:
  • jobs at easykeys gif
Amazon
Google Pay
Apple Pay
PayPal
Link
American Express
Diners Club
Discover
JCB
Mastercard
Visa
Union Pay

© 2026 EasyKeys.com ® fast key & lock replacements | EasyKeys.com ®| 11407 Granite Street Ste B | Charlotte, NC 28273 | 877.839.5397

Subscribed!