bolts › close tolerance bolts
NAS1954C2H
Bolt
Description
Fastener Length: 9/16", Hole Diameter: 3/64", Thread: 1/4-28, Thread Length: 7/16"
Specifications
| Fastener Length | 0.535 inches minimum and 0.565 inches maximum |
|---|---|
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.115 inches minimum and 0.135 inches maximum |
| Head Height | 0.125 inches minimum and 0.140 inches maximum |
| Head Style | Dished hexagon |
| Hole Configuration Style | Hexagon corners |
| Hole Diameter | 0.046 inches minimum and 0.056 inches maximum |
| Hole Quantity | 3 |
| Hole Type | Drilled |
| Length | 9/16 |
| Material | Iron |
| Material Specification | Ams5731 assn std single material response or ams5737 assn std single material response |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Specification Data | 80205-nas1954 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.400 inches minimum and 0.450 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.430 inches minimum and 0.439 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1954C2H. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error