MS21299-6
Military Standard Flat Washer
size: 3/8", plain, cadmium plated steel, MS21299 series washer






MS21299-6 Datasheet Features and Specification
Quick Specs
Material | Steel |
Additional Information
SKU / Model: | MS212996 |
NSN: | 5310-01-025-6451 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21299 |
Pack Weight (Approx.) | 0.499 lb |
Minimum Qty (MOQ): | 100 |
ECCN: | EAR99 |
National Motor Freight: | 194160, Washer Or Gaskets, Iron Or Steel, |
Download PDF Version MS21299-6_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21299-6

MS21042-6
Self-Locking Extended Washer Nut
in Nuts
Thread: 3/8-24, self locking, reduced hexagon, reduced height, cad plated steel, no dry film lube, MS21042 series nut
More MS21299 flat washers
MS21299C8K, 5310-01-483-3941
MS21299C8 Hole Diameter: 1/2 inch
Hole Diameter: 1/2 inch
5310-01-617-7319 Flat Washer
$0.32 EA, Hole Diameter: 3/8in.
Steel recessed washer hole diameter 1/4 inch
Product Image Gallery
Product code MS21299-6





Have a question
If you require a quote on this or any product please visit our quote request page »
Browse our frequently asked questions page.
You may contact us by phone at +1 (904) 543-6395 or
email us using our contact form.
Our hours of operation are 8:00am - 6:00pm EST
Customer Reviews

Great Service, good response time and very professional. Definitelt will buy from these again.
Trisha did a great job, received the quote fast and the material 2 days later, thanks!
I can always count on Military Fasteners to give me the best selection of aircraft parts and supplies. Also always get fast shipping, and appreciate the USPS option that is much less expensive than the overnight shippers for us located in Southern California. Thank you for making it easier to keep our general aviation and experimental aircraft flying!
Very pleased with the customer service I get when I call. My Cessna 182 is always needing a little bit of extra LOVE from Military Fasteners. When I call to order parts, your training and customer service of your order takers are the tops.. They understand what I'm looking for and can help me figure out how to order it. I've upgraded my old normal headsets to your reconditioned Bose X General Aviation Noise Cancelling. These are my first Noise Cancelling headsets and we are very pleased...I've come back and purchased 2 more...You are a very professional group! With your shipping location in Atlanta, sometimes, I get things in 1 day or 2 at the most. Thanks.
Please complete this form if you're having an issue with ordering this item or this item displays invalid or innacurate information or specifications. We thank you for taking the time to report issues so that we may better serve you.