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NAS623-2-4
Machine Screw
Description
Pan Head Machine Screw
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | Between 0.511 inches and 0.541 inches |
| Grip | 0.250 in |
| Head Diameter | Between 0.306 inches and 0.322 inches |
| Head Height | Between 0.105 inches and 0.115 inches |
| Head Style | Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | NAS1623 |
| Internal Drive Style | Cross recess type 1 |
| Length | 0.526 in |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 00-688-1422 |
| NSN | 5305-00-688-1422 |
| Screw Material | Steel comp e4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4037 |
| Screw Material Specification | Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-8503 military specification 4th material response or mil-s-5626 military specification 5th material response or ams6300 assn standard 6th material response |
| Screw Surface Treatment Specification | Class 3 federal specification single treatment response type 2 qq-p-416 |
| Sold In | Per Package |
| Thread Class | 2a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.189 inches and 0.301 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 8-32 |
| Thread Type | Short Thread |
| Weight | 0.002 lb |
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.
- NAS1632-4 NAS #8-32 · 17/32 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error