The Bolt,shoulder, cataloged under National Stock Number 5306-00-920-7258, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-920-7258 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.380 INCHES NOMINAL IN |
| Fastener Length | 5.880 INCHES NOMINAL IN |
| Shoulder Length | 5.320 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.140 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.053 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 5.730 INCHES MINIMUM AND 5.760 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 756240-101 | 3/2 Design control — primary reference U.S. Government activity |
| 66841 | 5/9 Secondary reference Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing |
NSN 5306-00-920-7258 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2910-01-245-1190. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-920-7258: Head Height: 0.380 INCHES NOMINAL IN; Fastener Length: 5.880 INCHES NOMINAL IN; Shoulder Length: 5.320 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER IN. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.