nuts › plain hexagon nuts
MS35649-2312
5/16-18 MS35649 Military Hex Machine Screw Nuts Cadmium
Description
MS 35649-2312 Hexagon Machine Screw Nut
Specifications
| Alternate Part Number | AN340-516 |
|---|---|
| Bearing Surface Type | Chamfered |
| Finish | Cadmium ll |
| Hexagon Size - Across Flats | 9/16 |
| Hexagon Size - Thick | 7/32 |
| Industry Standards/Certification | MS35649 |
| Material | Steel |
| Maximum Thickness H | 0.225 in |
| Maximum Width Across Corners F | 0.562 in |
| Maximum Width Across Corners G | 0.650 in |
| Minimum Thickness H | 0.208 in |
| Minimum Width Across Corners F | 0.545 in |
| Minimum Width Across Corners G | 0.621 in |
| NIIN | 00-829-9981 |
| NSN | 5310-00-829-9981 |
| Nondefinitive Specification/Std Data | 2 type and 13 style |
| Nut Height | 0.208 inches minimum and 0.225 inches maximum |
| Nut Style | Hexagon |
| Shape | Hexagon |
| Size | 5/16-18 |
| Surface Treatment | Cadmium and chromate or phosphate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec 1st treatment response |
| Thread | 0.3125-18 |
| Thread Class | 2b |
| Thread Direction | Right-hand |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | UNC |
| Thread Size | 0.312, 5/16-18 |
| Thread Type | Coarse Thread |
| Type | Plain |
| Weight | 0.012 lb |
| Width Across Flats | 0.545 inches minimum and 0.562 inches maximum |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS35649-2312 — functionally equivalent.
- AN340-516 Listed alternate Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS35649-2314B MS 5/16-18 · CRES
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Catalog data updated 2026-07-05. Report a data error