MS21043-4 Self-Locking Extended Washer Nut

Part#: MS21043-4 NSN: 5310-00-719-5570

About this product $1.85/Each, Sold in multiples of 25, IN STOCK, MS21043-4 is a reduced-height, reduced-hex all-metal self-locking nut designed for high-temperature aerospace and military fastening applications. The nut features a 1/4-28 right-hand thread, corrosion-resistant steel construction, silver-plated finish and an operating temperature capability up to 800°F. * Manufacturer certifications are shipped with your order FREE of charge

Product Details

Part Number or Model	MS21043-4
Description	Self-Locking Extended Washer Nut
Schedule B Class	7318.16.0000
ECCN (Export Control Class)
Locking Feature	Prevailing torque all metal design
Material	Iron alloy 660 overall
Material Specification	Ams 5525 assn std single material response overall or ams 5732 assn std single material response overall or ams 5737 assn std single material response overall
Thread Size	0.250 inches
Nut Style	Hexagon
Overall Height	0.205 inches minimum and 0.219 inches maximum
Precious Material And Location	External surface silver
Surface Treatment	Silver overall
Surface Treatment Specification	Ams 2410 assn std single treatment response overall
Tempurature Rating	900.0 deg fahrenheit nominal
Thread Class	3b
Thread Direction	Right-hand
Thread Qty Per Inch (tpi)	28
Thread Series	Unf
Washer Outside Diameter	0.402 inches minimum and 0.412 inches maximum
Washer Thickness	0.019 inches minimum
Width Across Flats	0.304 inches minimum and 0.316 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