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NAS6605-18
Close Tolerance Bolt
Description
NAS6605 Shear Bolts Thread 5/16-24
Specifications
| Alternate Part Number | NAS1305-18 |
|---|---|
| Country of Origin | USA |
| Drilling | Undrilled Head |
| Fastener Length | Between 1.579 inches and 1.609 inches |
| Grip | 1.125 in |
| Grip Diameter | Between 0.3110 inches and 0.3120 inches |
| Grip Length | Between 1.115 inches and 1.135 inches |
| Grip Tolerance | ±0.010 in |
| Head Height | Between 0.156 inches and 0.171 inches |
| Head Style | Dished hexagon |
| Head Type | Hexagon |
| Industry Standards/Certification | NAS6605 |
| Length | 1.594 in |
| Material | Steel |
| Material Specification | Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-210-9427 |
| NSN | 5306-01-210-9427 |
| Specification Data | 80205-nas6605 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl2 federal specification single treatment response ty2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.444 inches and 0.494 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.3125-24, 1/4 |
| Weight | .004 lb |
| Width Between Flats | Between 0.492 inches and 0.502 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS6605-18
- NAS6605-24
- NAS6605-37
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS6605-18 — functionally equivalent.
- NAS1305-18 Listed alternate 1/4-24 · 0.073 in · Dished hexagon · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error