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MS24693-3B
4-40X5/16 MS24693-B Phillips Flat 100 Degree F/T Machine Screws 300 Series SS BLK Ox DFAR
Description
Machine Screw
Specifications
| Alternate Part Number | AN507-440R5 |
|---|---|
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
| Country of Origin | USA |
| Drive | Phillips |
| Fastener Length | Between 0.281 inches and 0.312 inches |
| Finish | Black Oxide Coating |
| Head Angle | 100 º |
| Head Diameter | Between 0.191 inches and 0.225 inches |
| Head Style | 100 Degree Flat Head, Flat countersunk |
| Head Type | Flat |
| Industry Standards/Certification | MS24693 |
| Internal Drive Style | Cross recess type 1 |
| Length | 5/16 in |
| Material | CRES |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| NIIN | 01-077-0156 |
| NSN | 5305-01-077-0156 |
| Nondefinitive Specification/Std Data | 3 type and 3c style |
| Screw Material | Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 |
| Screw Material Specification | 66 federal standard all material responses |
| Screw Surface Treatment | Oxide |
| Screw Surface Treatment Specification | Cl 4 military specification single treatment response mil-c-13924 |
| Size | 4-40 |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.182 inches and 0.263 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 4-40 |
| Weight | 0.0007 lb |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS24693-3B — functionally equivalent.
- AN507-440R5 Listed alternate #4 · 5/16 in · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS24693-S3 MS #4-40 · 5/16 in · 100 Degree Flat Head, Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error