The Bolt,shoulder, cataloged under National Stock Number 5306-01-311-4594, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-311-4594 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.460 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Fastener Length | 4.940 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN |
| Shoulder Length | 4.120 INCHES MINIMUM AND 4.140 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.746 INCHES MINIMUM AND 0.750 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.800 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 1560-EG-112 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-311-4594 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-311-4594: Head Height: 0.460 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Fastener Length: 4.940 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN; Shoulder Length: 4.120 INCHES MINIMUM AND 4.140 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.746 INCHES MINIMUM AND 0.750 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.