MS21045C4
Military Standard Locking Hexagon Nut Self
thread: 1/4-28, self locking, regular height, corrosion resistant steel, with dry film lube, MS21045 series nut




MS21045C4 Datasheet Features and Specification
Variants and accessories
Variations and related products and accessories for self-locking hexagon nut part number or model MS21045C4.
Part Number | Thread | |
---|---|---|
MS21045C3 | 10-32 | |
MS21045C5 | 5/16-24 | |
MS21045C6 | 3/8-24 | |
MS21045C7 | 7/16-20 | |
MS21045C9 | 9/16-18 | |
MS21045C10 | 5/8-18 | |
MS21045C8 | 1/2-20 |
Quick Specs
Thread Size | 1/4 |
Thread Qty | 28 |
Thread Series | UNF |
Thread Class | 3B |
Material | Stainless Steel |
Additional Information
Alternate Part Numbers
- MS21045-C4
SKU / Model: | MS21045C4 |
NSN: | 5310-00-982-4988 |
FSC: | Nuts and Washers / 5310 |
Product Series: | MS21045C |
Pack Weight (Approx.) | 0.183 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 MS21045C4_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21045C4

MS21045C3
Self-Locking Hexagon Nut
in Nuts
thread: 10-32, self locking, regular height, corrosion resistant steel nut, with dry film lube, MS21045 series nut

MS21045C08
Self-Locking Hexagon Nut
in Nuts
thread: 8-32, self locking, regular height, corrosion resistant steel, with dry film lube, MS21045 series nut

MS21045C6
Self-Locking Hexagon Nut
in Nuts
thread: 3/8-24, self locking, regular height, corrosion resistant steel, with dry film lube, locknut, MS21045 series nut
NAS1149C0463R
Flat Washer
in Washers
Size: 1/4, thickness: 1/16", corrosion resistant stainless steel, passivated finish, NAS1149C series washer
More MS21045C self-locking hexagon nuts
$34.92 Ea
$44.34 Each, 7/16-20 thread self-locking regular height corrosion resistant steel nut, with dry film lube
3/8-24 thread self-locking regular height corrosion resistant steel nut with dry film lube
$4.20 Each, 5/16-24 thread self-locking regular height corrosion resistant steel with dry film lube locknut
Self Locking MS21045C4S Nut
5310-01-496-0053 Self-locking Hexagon Nut
Product Image Gallery
Product code MS21045C4



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 when calling in orders, very knowledgeable staff. The web site is also very user friendly for ordering and shipping is quick. I give it a 5 star rating.
Devin from shipping dept. was a fantastic help! Great support and service.
Great place to buy!
Have to tell you that you have the best in Brittany Cornish. She is always the most help in getting our ordered placed as soon as we send it in and always on time delivery. She is very responsive with any and all issues if any which we never have any dealing with her. She always goes above and beyond to follow up even after we received our order. We only wish all of our Vendors that we deal with on a daily basis were as wonderful as she is. Her personality is bar none.
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.