MS21299-4K
Military Standard Flat Washer
Hole Diameter: 1/4", Diameter: 31/64",






MS21299-4K Datasheet Features and Specification
Additional Information
SKU / Model: | MS212994K |
NSN: | 5310-01-554-8718 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21299 |
Pack Weight (Approx.) | 0.122 lb |
Minimum Qty (MOQ): | 50 |
ECCN: | EAR99 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version MS21299-4K_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21299-4K

MS51957-13B
Machine Screw
in Screws
length: 1/4", thread: 4-40, black oxide coating, pan head, corrosion resistant steel, coarse thread, MS51957 series screw

MS51959-13B
Machine Screw
in Screws
Fastener Length: 1/4", Thread: 4-40, Thread Length: 11/64", black oxide

AN960C10
Flat Washer
in Washers
Size: #10, thickness: 1/16, corrosion resistant steel, passivated finish, AN960 series washer

MS35650-304
Plain Hexagon Nut
in Nuts
Thread: 10-32, hex nut, fine thread, corrosion resistant steel, MS35650 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
Hole Diameter: 3/8in., 5310-01-101-1856
Steel recessed washer hole diameter 1/4 inch, 5310-01-483-0360
Product Image Gallery
Product code MS21299-4K





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

Best source for mil spec hardware. Website is user friendly, inventory is expansive, overnight shipment is a huge plus, and customer support is responsive and very helpful.
Professional and friendly sales rep! Quick quoting, ordering, and shipping. Will order from mil-fasteners again.
I just want to say that I am really liking what is going on with Military Fasteners. The prices, the availability of items, the fast shipping. I really like the ease of ordering online. I have been to so many websites that are confusing to say the least, but yours is easy easy to use, clear and simple. I love being able to look up all my past orders and print out the invoices if need be. I am just thoroughly impressed with everything about Military Fasteners. Keep it up and you will always be on my bookmarks bar in the number one position!
I am really pleased with the customer service I received. Very communicative, and the items are available at decent pricing.
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.