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NAS6204-39
Close Tolerance Bolt
Description
Close Tolerance Bolt
Specifications
| Alternate Part Number | NAS464P4A39 |
|---|---|
| Country of Origin | USA |
| Fastener Length | 2.423 inches minimum and 2.453 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 2.428 inches minimum and 2.448 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.125 inches minimum and 0.140 inches maximum |
| Head Style | Dished hexagon |
| Length | 2 29/64 |
| Material | Steel |
| Material Specification | Mil-s-5000,4340 or e4340 mil spec single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-176-1989 |
| NSN | 5306-01-176-1989 |
| Specification Data | 80205-nas6204 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,cl 2,ty 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.370 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Weight | .004 lb |
| Width Between Flats | 0.429 inches minimum and 0.439 inches maximum |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS6204-39 — functionally equivalent.
- NAS464P4A39 Listed alternate 1/4-28 · 0.086 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error