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AN961-4S
Aeronautical Standard Flat Washer
Description
AN 961-4S Flat Washer
Specifications
| Finish | Silver |
|---|---|
| Hole Diameter | 0.115 inches minimum and 0.135 inches maximum |
| Material | Brass |
| Material Specification | Qq-b-626,1/2 h fed spec 1st material response or qq-w-321,1/2 hard fed spec 2nd material response |
| Nominal I.D. | .125 |
| Nominal O.D. | .312 |
| Overall Diameter | 0.307 inches minimum and 0.332 inches maximum |
| Precious Material | Silver |
| Precious Material And Location | Overall silver |
| Screw Size | 4 |
| Surface Treatment | Silver plated |
| Surface Treatment Specification | Qq-s-365,gr b fed spec single treatment response |
| Thickness | .032, 0.022 inches minimum and 0.042 inches maximum |
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.
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Catalog data updated 2026-07-05. Report a data error