Description
Anyone who runs a quick-detach suppressor mount long enough knows the small moving parts take the abuse. The compression nut on a KeyMo mount does a lot of quiet work every time you spin a can on and off, and if yours ever gets worn, gouged, or lost during a cleaning session, this is the exact factory part to put things right. No guesswork, no aftermarket fitment headaches, just the genuine Dead Air piece your mount shipped with.
One Nut, Broad KeyMo Coverage
Dead Air kept things simple here. This is the same compression nut used across all DA428 KeyMo-HUB adapters and DA451 KeyMicro adapters, and it also serves as the detent plate that ships with the Sandman series. So whether you are running a Sandman S, Sandman L, a Sierra-5 KM, or a HUB-threaded can with a KeyMo adapter, this one part covers you. That kind of cross-compatibility makes it an easy add to any parts drawer.
Why Stock a Spare Compression Nut
Suppressor mounts live a hard life. Carbon buildup, heat cycles, and regular disassembly for cleaning all wear on the small components first, and nothing stalls a range day faster than a mount that will not lock up right. Dead Air offers this part specifically for folks who like keeping their own inventory of moving parts on hand, and that is a habit worth picking up if you shoot suppressed with any regularity. Swapping it in during routine maintenance takes just a moment and keeps your mount indexing and locking the way it should.
Genuine Dead Air Replacement Part
This is manufacturer part number DA010 in the standard black finish, made to the same spec as the component that came in your adapter from the factory. It is small, it is inexpensive to ship, and it is the kind of part you will be glad you had on the shelf instead of waiting on an order while your favorite can sits idle. Grab one when you pick up your KeyMo mount and forget about it until the day it saves you.
Key Specifications
- Manufacturer: Dead Air Silencers
- Manufacturer Part Number: DA010
- UPC: 810128161503
- Model: Compression Nut
- Color: Black
- Compatibility: DA428 KeyMo-HUB adapters, DA451 KeyMicro adapters
- Also Fits: Sandman series and Sierra-5 KM (same detent plate)
- Product Type: Suppressor Accessory / Replacement Part
- Length: 1.3 in
- Weight: 0.11 lb
What’s Included
- Dead Air Compression Nut (DA010)
Frequently Asked Questions
Which mounts does the Dead Air compression nut fit?
It fits all DA428 KeyMo-HUB adapters and DA451 KeyMicro adapters. It is also the same detent plate that ships with the Sandman series suppressors, so it covers Sandman S, Sandman L, Sandman K, and Sierra-5 KM setups as well. One part number handles the whole KeyMo family.
Is this the same part that comes installed from the factory?
Yes, this is a genuine Dead Air factory replacement, not an aftermarket copy. It is the exact component included with KeyMo-HUB and KeyMicro adapters from the start, so fit and function are identical to what your mount shipped with.
Why would I need a spare compression nut for my KeyMo mount?
Quick-detach mounts see a lot of heat, carbon, and repeated on-and-off cycles, and small moving parts wear out or go missing during cleaning before anything else does. Keeping a spare on hand means a worn or lost nut never sidelines your suppressor. Dead Air sells these individually for exactly that reason.
Does the DA010 compression nut come with the wave spring or detent ring?
No, this listing is for the compression nut only. Dead Air sells the wave spring (DA011) and detent ring (DA012) separately, so if you want a complete set of wear parts for your KeyMo adapter, pick those up alongside this one.





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