MS21044N4 Self-locking Hexagon Nut

Part#: MS21044N4 NSN: 5310-00-877-5796

About this product The MS21044N4 is a 1/4-28 hexagon self-locking nut designed for aerospace, military, and industrial fastening applications. Identified under NSN 5310-00-877-5796 and manufactured to the MS21044 specification, this regular-height nut features cadmium-plated carbon steel construction and a nonmetallic nylon locking insert that helps prevent loosening caused by vibration. The MS21044N4 features a 0.250-inch nominal thread diameter, 28 threads per inch, a 7/16-inch wrench size, and a maximum operating temperature of 250Â°F (121Â°C). Commonly used in aircraft assemblies, avionics mounting, and military equipment, it supersedes historical part numbers AN365-428 and MS20365-428, subject to applicable procurement requirements. * Manufacturer certifications are shipped with your order FREE of charge

Product Details

Part Number or Model	MS21044N4
Description	Self-locking Hexagon Nut
Schedule B Class	7318.16.0085
ECCN (Export Control Class)	EAR99
Tempurature Rating	250.0 degrees fahrenheit nominal
Surface Treatment Specification	Qq-p-416,ty 2,cl 3 fed spec single treatment response nut
Surface Treatment	Cadmium nut and chromate nut
Nut Style	Hexagon
Nut Height	0.240 inches minimum and 0.360 inches maximum
Material	Steel comp
Lubrication	Soluble lubricant
Countersink Angle	88 degrees nominal nut
Locking Feature	Prevailing torque with nonmetallic insert
Counterbore Diameter	0.253 inches minimum nut and 0.293 inches maximum nut
Bearing Surface Type	Chamfered or washer faced
Bearing Surface Finish	125 microinches
Thread Class	3b
Thread Direction	Right-hand
Thread Qty Per Inch (tpi)	28
Thread Series	Unf
Thread Size	0.250 inches
Width Across Flats	0.430 inches minimum and 0.439 inches maximum

Pricing and Availability

We have this product in stock, but with the high volume of orders we receive for it, an updated price quote needs to be issued. Please submit a request for a quote for updated pricing.

Get a Quote

NSN (National stock number)
5310-00-877-5796
ECCN (Export Control Class)
EAR99

Alternate(s)

5310-00-877-5796
5310008775796

AeroBase Group is an ISO 9001:2015 + AS9120B audited and certified supplier.

Free Shipping on eligible orders over 150

Related Products and Supplies

MS35338-44

Mating Washer
MS35338-44 Lock Washer, 5310-00-582-5965

NAS1149F0463P

Mating Washer
NAS1149F0463P flat washer

AN960-416

Mating Washer
AN960-416 Flat Washer, 5310-00-141-1795

MS25226-6-14

Conductor Bus
14 hole cadmium-plated copper conductor bus bar (connecting terminal link) manufactured to military and aerospace specifications MS25226-6-14

MS21042-4

Mating Nut
MS21042-4 Self-Locking Extended Washer Nut , 5310-00-807-1468

MS21044 Series Products

see all MS21044 parts »

MS21044N3

Self-Locking Nut
MS21044N3 Self-Locking Nut, 5310-00-877-5797

More from

M7928/4-4

M792844 lug terminal

MS24655-241W

MS24655241W toggle switch

NAS1801-3-16

NAS1801316 machine screw

M22759/8-10-9

M227598109 electrical wire