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MS21078-04
Military Standard Two Lug Locknut Plate
Description
Thread Size: 7/64", Nut Length: 31/32", Nut Height: 13/64"
Specifications
| Center To Center Distance Between Mounting Holes Along Length | 0.686 inches minimum and 0.690 inches maximum |
|---|---|
| Distance From Aperture Center To Mounting Hole Center | 0.339 inches minimum and 0.349 inches maximum |
| Hardness Rating | 32.0 rockwell c maximum |
| Locking Feature | Prevailing torque with nonmetallic insert |
| Material | Plastic |
| Mounting Hole Arrangement Style | 2 holes |
| Mounting Hole Diameter | 0.098 inches minimum and 0.103 inches maximum |
| Nut Height | 0.133 inches minimum and 0.218 inches maximum |
| Nut Length | 0.984 inches maximum |
| Nut Mounting Provision | Straight holes |
| Nut Style | Plate |
| Plate Thickness | 0.075 inches maximum |
| Plate Width | 0.375 inches minimum and 0.406 inches maximum |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response nut |
| Temperature Rating | 250.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | UNC |
| Thread Size | 0.112 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21078-04. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error