CompX National Postal Lock For Non-USPS Delivered Sites
Sku: C9300
Postal Lock For Non-USPS Delivered Sites Details
Postal Lock For Non-USPS Delivered Sites. NOTE: Extra keys may only be purchased with the purchase of a new lock.
Price: $21.27
Hurry! Only 4 left in stock. More on the way! Expected to be arriving soon.
Bulk Pricing
2 units
$20.27 ea
5 units
$18.27 ea
10 units
$16.27 ea
SKU: C9300
Free shipping not eligible
Shipping charges will apply to this item.
Extra Keys $7.17 each
To add extra keys, C9300 must be in the cart.
SKU: C9300
Product Description
- APPLICATION – Interior, pedestal-mounted or in-wall boxes. Screw mounted. Hardware not included. Commercial equivalent of USPS 306B.
- OPERATION – 90° counter-clockwise cam turn to open. Key removable in locked position only.
- KEYING – Available keyed differently only (4,000 changes). Key blank part number D4400.
- PACKAGING – Supplied with cam assembled and three keys.
Similar part numbers commonly used for this lock are:
Wind Danbury Ct 10277
RECOMMENDED PRODUCTS
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Free shipping not eligible
Shipping charges will apply to this item.
Added To Cart!
Closed on Friday, July 3rd: Independence Day (Observed)
Want it delivered Tuesday, July 7, 2026? Order by 5pm
EST
Monday, July 6, 2026
choose FedEx Overnight shipping.
My Cart
There are no items in your cart.
Spend $35+ on qualifying items to unlock FREE U.S. domestic 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
Email &
Live
Chat Service
8:30 AM - 5:00 PM ET M - F
Use LiveChat & Email
(real humans)
New Products
Graphite Lubricant
Magnifying Card Light
Customer Reviews
What Our Customers Say
Honest feedback from customers who purchased from EasyKeys.
Showing 20 most recent reviews
robert
Jul 03, 2026
“Very easy to operate”
Chris
Jul 03, 2026
“Easy to use”
Lloyd
Jul 02, 2026
“Not a scam. Good to work with.”
Nichelle
Jul 02, 2026
“Thank you.”
Linda
Jul 02, 2026
“website is great-easy to find what i was looking for!
hope fulfillment is just as good.”
Severino
Jul 02, 2026
“ALWAYS THE EASY BUTTON!”
Sylvia
Jul 02, 2026
“Website is easy to use and locate what I am needing.
”
S.
Jul 02, 2026
“This is my first time ever ordering keys from this company let’s pray they work wonderfully thanks”
Pat
Jul 02, 2026
“My organization ordered this same key code CR034 last week sent to Elbert County CO.....the key did not fit/work in the cylinder? Why? So now going to try again. Do you garentee your keys/codes?”
Chris
Jul 01, 2026
“Fast and easy! Thanks!”
Jonathan
Jul 01, 2026
“If it works for the right key it’s great. Need to wait and see. ”
Florence
Jul 01, 2026
“This service was great.”
David
Jul 01, 2026
“Great place for getting replaced keys. ”
ROGER
Jul 01, 2026
“fairly easy”
Brien
Jul 01, 2026
“easy search, easy checkout, reasonable pricing, what else do you need!”
Barry
Jul 01, 2026
“We come back to Easy Keys again and again because it is so easy to use, prices are reasonable, and we have our keys/locks within a week (usually). ”
Christopher
Jul 01, 2026
“Very quick and easy process to order replacement keys.”
Delbert
Jun 30, 2026
“Nice”
Jeff
Jun 30, 2026
“Quick easy”
Anand
Jun 30, 2026
“Excellent website, very easy to us”