screws › close tolerance screws
NAS1153-3
Close Tolerance Screw
Description
Flat Head Machine Screw
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Country of Origin | USA |
| Fastener Length | 0.449 inches minimum and 0.479 inches maximum |
| Finish | Cadmium Plated, Type II, Class 2 per QQ-P-416 |
| Grip | 0.188 in |
| Grip Diameter | 0.1885 inches minimum and 0.1895 inches maximum |
| Grip Length | 0.188 |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Angle | 100 º |
| Head Diameter | 0.328 inches minimum and 0.385 inches maximum |
| Head Style | Flat countersunk |
| Head Type | Offset Cruciform |
| Industry Standards/Certification | NAS1153 |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 0.464 in, 15/32 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Sold In | Per Package |
| Specification Data | 80205-nas1153 professional/industrial association standard |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.1900 |
| Thread Direction | Right-hand |
| Thread Length | 0.276 inches minimum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 10 |
| Weight | .005 lb |
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 NAS1153-3. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error