The Bolt,shoulder, cataloged under National Stock Number 5306-00-437-4686, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-437-4686 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.090 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Fastener Length | 1.520 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN |
| Shoulder Length | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 1.057 INCHES MINIMUM AND 1.060 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.779 INCHES MINIMUM AND 0.819 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 33.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.100 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.375 INCHES NOMINAL 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 |
|---|---|
| 26-19109-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-437-4686 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-437-4686: Head Height: 0.090 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Fastener Length: 1.520 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN; Shoulder Length: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 1.057 INCHES MINIMUM AND 1.060 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.