The Bolt,shoulder, cataloged under National Stock Number 5306-01-191-6263, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-191-6263 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.094 INCHES NOMINAL IN |
| Fastener Length | 2.812 INCHES NOMINAL IN |
| Shoulder Length | 2.312 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.3126 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.376 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Minimum Tensile Strength | 135000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 115000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 2640-125X2 PIECE 10 | 3/2 Design control — primary reference U.S. Government activity |
| SS845-2007636 PIECE 10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-191-6263 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-191-6263: Head Height: 0.094 INCHES NOMINAL IN; Fastener Length: 2.812 INCHES NOMINAL IN; Shoulder Length: 2.312 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.3126 INCHES MINIMUM AND 0.3130 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.