washers › flat washers
MS21299-5K
Military Standard Flat Washer
Description
Hole Diameter: 3/8", Diameter: 5/8
Specifications
| Hardness Rating | 35.0 rockwell c minimum and 42.0 rockwell c maximum |
|---|---|
| Hole Diameter | 0.314 inches minimum and 0.318 inches maximum |
| Material | Steel |
| Material Specification | Ams 5604,17-4ph,cond h 1025 assn std single material response |
| Overall Diameter | 0.588 inches minimum and 0.598 inches maximum |
| Specification Data | 80205-nas-21299 professional/industrial association standard |
| Surface Finish | 125.0 microinches all surfaces |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thickness | 0.052 inches minimum and 0.072 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS21299-5 MS 5/16 · 19/32 in · Steel
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Catalog data updated 2026-07-05. Report a data error