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AN525-10R18
Aeronautical Standard Machine Screw
Description
Washer Head Machine Screw
Specifications
| Alternate Part Number | AN525-1032R18 |
|---|---|
| Country of Origin | USA |
| Extended Washer Diameter | Between 0.427 inches and 0.447 inches |
| Extended Washer Thickness | Between 0.025 inches and 0.030 inches |
| Fastener Length | Between 1.094 inches and 1.156 inches |
| Grip | 23/32 in |
| Grip in. | 23/32 |
| Head Diameter | Between 0.365 inches and 0.385 inches |
| Head Height | Between 0.089 inches and 0.099 inches |
| Head Style | Round extended washer |
| Head Type | Washer |
| Industry Standards/Certification | AN525 |
| Internal Drive Style | Cross recess type 1 |
| Length | 1 1/8 in |
| Length in. | 1 1/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-282-8470 |
| NSN | 5305-00-282-8470 |
| 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 or zinc |
| Screw Surface Treatment Specification | Qq-p-416 federal specification 1st treatment response or qq-z-325 federal specification 2nd treatment response |
| Sold In | Each |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.297 inches and 0.453 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 10-32 |
| Weight | 0.01 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.
- AN525-10R20 AN #10-32 · 0.073 in · Round extended washer · Steel
- AN525-10R24 AN #10-32 · 0.073 in · Round extended washer · Steel
- AN525-10R26 AN #10-32 · 0.073 in · Round extended washer · Steel
- AN525-10R28 AN #10-32 · 0.073 in · Round extended washer · Steel
- AN525-10R30 AN #10-32 · 0.073 in · Round extended washer · Steel
- AN525-10R32 AN #10-32 · 0.073 in · Round extended washer · Steel
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Catalog data updated 2026-07-05. Report a data error