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
| 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 |
Self-Locking Nut
MS21043-3 Self-Locking Nut, 5310-00-844-3302
Self-Locking Extended Washer Nut
MS21043-04 Self-Locking Extended Washer Nut, 5310-00-878-3292
NAS1791C3-1 Self-Locking Nutplate, 5310-00-379-4633
MS21042-4 Self-Locking Extended Washer Nut , 5310-00-807-1468
This item has been added to your cart!