Flat Washer - NAS1149C0763R
Standard Part
Description: Flat Washer
Part Number: NAS1149C0763R
Alternate Part Number: Flat Washer - NAS1149C0763R
Item Description
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Features and Characteristics
| Cross Sectional Shape | : | Rectangular |
| Hole Diameter | : | Between 0.443 inches and 0.463 inches |
| Edge Shape | : | Round |
| Center Hole Shape | : | 1 round |
| Thickness | : | Between 0.057 inches and 0.069 inches |
| Overall Diameter | : | Between 0.745 inches and 0.770 inches |
| Material | : | Steel comp 301 or steel comp 302 or steel comp 304 or steel comp 316 |
| Surface Treatment | : | Passivate |
| Surface Treatment Specification | : | Qq-p-35 federal specification single treatment response |
| Specification Data | : | 80205-nas1149 professional/industrial association standard |
| FSC | : | 5310 Nuts And Washers |
| NIIN | : | 013961761 |
| NSN | : | 5310013961761 |