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NAS623-5-9
Machine Screw
Description
Fastener Length: 15/16", Thread: 1/4-24, Thread Length: 25/64", NAS623 series screw
Specifications
| Fastener Length | Between 0.922 inches and 0.952 inches |
|---|---|
| Head Diameter | Between 0.594 inches and 0.651 inches |
| Head Height | Between 0.203 inches and 0.218 inches |
| Head Style | Pan Head |
| Internal Drive Style | Cross recess type 1 |
| Material | Steel |
| Material Specification | Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas623 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.350 inches and 0.400 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS623-5-7
- NAS623-5-9
- NAS623-5-12
- NAS623-5-14
- NAS623-5-20
- NAS623-5-23
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS623-5-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error