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MS20073-04-04
Bolt
Description
Bolt
Specifications
| Alternate Part Number | AN74-4 |
|---|---|
| Country of Origin | USA |
| Fastener Length | Between 0.578 inches and 0.625 inches |
| Features Provided | Finished head |
| Grip | 0.062 in, 0.0620 |
| Grip Length | Between 0.046 inches and 0.078 inches |
| Hardness Rating | 26.0 rockwell c and 32.0 rockwell c |
| Head Height | Between 0.203 inches and 0.234 inches |
| Head Style | Hexagon Head |
| Head Type | Drilled |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.070 |
| Hole Quantity | 6 |
| Hole Type | Drilled |
| Industry Standards/Certification | MS20073 |
| Length | 0.594 in, 0.5940, 5/8 |
| Material | Steel |
| Material Specification | Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-151-1084 |
| NSN | 5306-00-151-1084 |
| Old AN | AN74-4 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 31 3 federal specification all treatment responses |
| Thread | 1/4-28 Fine Thread |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.499 inches and 0.578 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4-28 |
| Thread Type | Fine Thread |
| Weight | 0.02 lb |
| Width Between Flats | Between 0.430 inches and 0.439 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS20073-04-04 — functionally equivalent.
- AN7-44 Listed alternate 7/16-20 · 7/64 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error