washers › recessed washers
MS21299C4
Military Standard Recessed Washer
Description
Washer
Specifications
| Hardness Rating | Between 39.0 rockwell c and 45.0 rockwell c |
|---|---|
| Hole Diameter | Between 0.251 inches and 0.255 inches |
| Material | Steel |
| Material Specification | Mil-s-6758 military specification single material response or mil-s-18729 military specification single material response |
| Material Thickness | Between 0.067 inches and 0.069 inches |
| NIIN | 01-008-6798 |
| NSN | 5310-01-008-6798 |
| Outside Diameter | Between 0.481 inches and 0.491 inches |
| Pre-Packaged Bag Quantity | 100 |
| Recess Angle | 90.0 degrees |
| Recess Diameter | Between 0.340 inches and 0.350 inches |
| Style Designator | 15 recessed |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 2 federal specification single treatment response type 2 qq-p-416 |
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 MS21299C4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error