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NAS1219-08-5
Screw
Description
Fastener Length: 5/16", Thread: 8-32, Thread Length: 1/4"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.297 inches minimum and 0.327 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.294 inches minimum and 0.332 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | High-torque |
| Length | 5/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Steel comp e4340 or steel comp 4140 or steel comp 8740 |
| Screw Material Specification | Mil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-8740 mil spec 3rd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,type 2,class 2 fed spec single treatment response |
| Specification Data | 80205-nas1219 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | 0.163 inches minimum and 0.255 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJC |
| Thread Size | 8 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1219-08-5
- NAS1219-08-6
- NAS1219-08-16
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.
- MS21093-0831 MS #8-32 · 5/16 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error