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NAS6606H18
Close Tolerance Bolt - Drilled Head
Description
Close Tolerance Bolt - Drilled Head
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | 1.688 inches minimum and 1.718 inches maximum |
| Grip Diameter | 0.3735 inches minimum and 0.3745 inches maximum |
| Grip Length | 1.115 inches minimum and 1.135 inches maximum |
| Head Height | 0.188 inches minimum and 0.203 inches maximum |
| Head Style | Undercut hexagon |
| Length | 1 45/64 |
| Material | Steel |
| NIIN | 00-205-3700 |
| NSN | 5306-00-205-3700 |
| Specification Data | 81205-bacb30ne manufacturers 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 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 0.553 inches minimum and 0.603 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 3/8 |
| Weight | .005 lb |
| Width Between Flats | 0.553 inches minimum and 0.564 inches maximum |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS6606H18 — functionally equivalent.
- NAS6606-18 Same NSN 24.00-24 · 1.70 in · Dished hexagon · Steel
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Catalog data updated 2026-07-05. Report a data error