MS21042L04
Military Standard Locking Extended Washer Nut Self
Thread: 4-40, reduced hexagon, reduced height, cad plated steel, dry film lubricated, MS21042 series nut




MS21042L04 Datasheet Features and Specification
Quick Specs
Thread Qty | 40 |
Thread Series | UNJC |
Thread Class | 3B |
Material | Steel |
Additional Information
Alternate Part Numbers
- NAS679A04
- M52LF3324-40
SKU / Model: | MS21042L04 |
NSN: | 5310-00-807-1471 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21042L |
Pack Weight (Approx.) | 0.000 lb |
Minimum Qty (MOQ): | 25 |
Schedule B: | 7318.16.0030 |
ECCN: | EAR99 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version MS21042L04_Military-Fasteners-com.pdf |
|
![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21042L04

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

MS21042L06
Self-Locking Extended Washer Nut
in Nuts
Thread: 6-32, reduced hexagon, reduced height, cad plated steel, dry film lubricated, MS21042 series nut

MS21042L08
Self-Locking Extended Washer Nut
in Nuts
thread: 8-32, reduced hexagon, reduced height, cadmium plated steel, dry film lubricated, MS21042 series nut

MS35206-215
Machine Screw
in Screws
Length: 3/8", thread: 4-40, pan head, cadmium plated carbon steel, coarse thread, MS35206 series screw

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
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: 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 MS21042L04



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

Always very helpful Employees. Stock seems to be getting better as well. No problems ever.
Local GuideĀ·"Great customer service from Brittany. She is awesome. Good prices and parts are n stock. Thx Brit for helping with my parts needed on short notice."
As usual Military Fasteners did a great job getting the items I ordered to me here in Arizona. My last order had one item on Back Order but was sent in a timely manner direct from the manufacturer. Great Company, great service.
Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.
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.