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NAS1190-04P8N
Screw
Description
Fastener Length: 1/2", Thread: 4-40, Thread Length: 1/2"
Specifications
| Fastener Length | 0.469 inches minimum and 0.500 inches maximum |
|---|---|
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.205 inches minimum and 0.219 inches maximum |
| Head Height | 0.070 inches minimum and 0.080 inches maximum |
| Head Style | Pan Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Locking Feature | Pellet threads |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Part Name Assigned By Controlling Agency | Navy special project |
| Specification Data | 80205-nas1190 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.419 inches minimum and 0.500 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4 |
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.
- MS21090-0414 MS #4-40 · 1/2 in · Pan Head · CRES
- NAS1100E04-8 NAS #4-40 · 1/2 in · Pan Head · Iron
- NAS1190-04P8 NAS #4-40 · 1/2 in · Pan Head · Steel
- NAS1190-04T8 NAS #4-40 · 1/2 in · Pan Head · Steel
- NAS600-8 NAS #4-40 · 1/2 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error