bolts › close tolerance bolts
NAS1154E6P
Close Tolerance Bolt
Description
Fastener Length: 11/16", Thread: 1/4-28, Thread Length: 5/16
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | 0.691 |
| Grip Diameter | Between 0.248 inches and 0.249 inches |
| Grip Length | 0.375 |
| Head Diameter | 0.449 |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Material | Iron |
| Material Specification | Ams 5737 assn standard single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Cl 2 federal specification single treatment response ty ii qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.316 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
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 NAS1154E6P. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error