washers › lock washers
MS45904-73
Military Standard Lock Washer
Description
Hole Diameter: 21/64", MS45904 series washer (Commercial Material, Company COC only)
Specifications
| Hardness Rating | 40.0 rockwell c minimum and 50.0 rockwell c maximum |
|---|---|
| Hole Diameter | 0.320 inches minimum and 0.332 inches maximum |
| Material | Steel |
| Material Specification | 66 fed std all material responses |
| Material Thickness | 0.037 inches minimum and 0.045 inches maximum |
| Nondefinitive Specification/Std Data | 3 type and 1 style or 2 style and 1 composition |
| Outside Diameter | 0.965 inches minimum and 0.985 inches maximum |
| Style Designator | Flat external and internal teeth |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS45904-60
- MS45904-68
- MS45904-69
- MS45904-72
- MS45904-73
- MS45904-76
- MS45904-84
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS45904-73. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error