MS21042L5
Military Standard Locking Extended Washer Nut Self
Thread: 5/16-24, reduced hexagon, reduced height, cad plated steel, dry film lubricated. locknut, MS21042 series nut






MS21042L5 Datasheet Features and Specification
Quick Specs
Thread Size | 1/4 |
Thread Qty | 24 |
Thread Series | UNJF |
Thread Class | 3B |
Material | Steel |
Additional Information
SKU / Model: | MS21042L5 |
NSN: | 5310-00-807-1476 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21042L |
Pack Weight (Approx.) | 0.000 lb |
Minimum Qty (MOQ): | 25 |
Schedule B: | 7318.16.0085 |
ECCN: | EAR99 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version MS21042L5_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21042L5

MS21042L4
Self-Locking Extended Washer Nut
in Nuts
Thread: 1/4-28, 450 degree, reduced hexagon, reduced height, cad plated steel, dry film lubricated, MS21042 series nut

MS21042L3
Self-Locking Extended Washer Nut
in Nuts
Thread: 10-32, self locking, reduced hexagon, reduced height, cad plated steel, dry film lubricated, MS21042 series nut

MS21042L6
Self-Locking Extended Washer Nut
in Nuts
Thread: 3/8-24, reduced hexagon, reduced height, cad plated steel, dry film lubricated, MS21042 series washer

AN960-516
Flat Washer
in Washers
Size: 5/16", thickness: 1/16", carbon steel, cadmium plated finish, AN960 series washer

MS21042L08
Self-Locking Extended Washer Nut
in Nuts
thread: 8-32, reduced hexagon, reduced height, cadmium plated steel, dry film lubricated, MS21042 series nut
More MS21042L 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 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
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
Thread 4-40 self locking reduced hexagon reduced height cad plated steel dry film lubricated
Product Image Gallery
Product code MS21042L5





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've never received an incorrect order from ACS, even when dealing with small hardware such as nuts, washers, screws, etc. Shipment is always fast and with reasonable shipment prices for my needs. Even my smallest of orders is processed and ship quickly. I'm a long-time ACS customer and I expect I will be for a long time.
Trisha Hawkins was extremely helpful and professional. Got my order quoted and processed in under 5 mins.
The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.
Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!
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.