MS21042-4
Military Standard Locking Extended Washer Nut Self
thread: 1/4-28, self locking. reduced hexagon, reduced height, cad-plated steel, no dry film lube, MS21042 series nut




MS21042-4 Datasheet Features and Specification
Additional Information
SKU / Model: | MS210424 |
NSN: | 5310-01-628-4949 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21042 |
Pack Weight (Approx.) | 0.163 lb |
Minimum Qty (MOQ): | 50 |
Schedule B: | 7318.16.0085 |
ECCN: | EAR99 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version MS21042-4_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21042-4

MS21042-3
Self-Locking Extended Washer Nut
in Nuts
Thread: 10-32, reduced hexagon, reduced height, cad plated steel, no dry film lube

MS21042-5
Self-Locking Extended Washer Nut
in Nuts
thread: 5/16-24, reduced hexagon, reduced height, cad plated steel, no dry film lube, MS21042 series nut

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

AN960-416
Flat Washer
in Washers
Size: 1/4", thickness: 1/16", carbon steel, cadmium plated finish, AN960 series washer

MS21042-08
Self-Locking Extended Washer Nut
in Nuts
Thread: 8-32, self locking, reduced hexagon, reduced height, cad plated steel, no dry film lube, MS21042 series nut

NAS1149F0432P
Flat Washer
in Washers
Size: 1/4, thickness: 1/32", carbon steel, cadmium plated finish, NAS1149 series washer
More MS21042 self-locking extended washer nuts
Thread: 3/8-24, reduced hexagon reduced height nut cad plated steel dry film lubricated, 5310-00-807-1477
Thread: 5/16-24 self-locking nut reduced hexagon reduced height cad plated steel dry film lubricated
Thread 1/4-28 self locking nut reduced hexagon reduced height cad plated steel dry film lubricated, 5310-00-807-1475
Self locking nut reduced hexagon 10-32 thread reduced height with dry lube, 5310-00-807-1474
Self locking nut reduced hexagon 8-32 thread reduced height with dry, 5310-00-807-1473
Self locking nut reduced hexagon 6-32 thread reduced height with dry film lubricated, 5310-00-807-1472
Product Image Gallery
Product code MS21042-4



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

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.
It was easy to order online and I received the product in only a few days. Great service!
Ordering is simple and my parts are always shipped promptly and arrive well packaged. Military Fasteners is always my go-to store when I need something for my homebuilt project.
Have had nothing but great experiences. If I ever need anything I just email Amelia Fato and she gets me fixed up! Super fast and helpful customer service. 10 out of 10.
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.