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NAS514P428-8P
Machine Screw
Description
Machine Screw
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Country of Origin | USA |
| Fastener Length | Between 0.469 inches and 0.500 inches |
| Head Diameter | Between 0.447 inches and 0.507 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-153-8478 |
| NSN | 5305-00-153-8478 |
| Screw Material | Steel comp 8630 or steel comp 4037 |
| Screw Material Specification | Mil-s-6050 military specification 1st material response or ams 6300 assn standard 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Cl 3 federal specification single treatment response type 2 qq-p-416 |
| Sold In | Per Package |
| Specification Data | 80205-nas514 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.292 inches and 0.394 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- NAS1102E4-8 NAS 1/4-28 · 1/2 in · Flat countersunk · Iron
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Catalog data updated 2026-07-05. Report a data error