washers › flat washers
MS21299-4
0.2500 Inch Nominal Size MS21299 Plain Washer
Description
Hole Diameter: 1/4", Diameter: 31/64", Thickness: 1/16", MS21299 series washer
Specifications
| Hardness Rating | Between 39.0 rockwell c and 45.0 rockwell c |
|---|---|
| Hole Diameter | Between 0.251 inches and 0.255 inches |
| Industry Standards/Certification | MS21299 |
| Material | Steel |
| Material Specification | Mil-s-6758 military specification single material response or mil-s-18729 military specification single material response |
| Overall Diameter | Between 0.481 inches and 0.491 inches |
| Surface Treatment | Cadmium plated |
| Surface Treatment Specification | Cl 2 federal specification single treatment response type 2 qq-p-416 |
| Thickness | Between 0.052 inches and 0.072 inches |
| Type | Plain |
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 MS21299-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error