The Bolt,shoulder, cataloged under National Stock Number 5306-01-159-1131, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-159-1131 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.262 INCHES NOMINAL IN |
| Fastener Length | 6.048 INCHES NOMINAL IN |
| Shoulder Length | 4.718 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 1.371 INCHES MINIMUM AND 1.373 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-C-24111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS CHAMFERED |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.630 INCHES NOMINAL IN |
| Minimum Tensile Strength | 155000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 145000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 9 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.880 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 |
|---|---|
| 709-4684913 ITEM 48 | 3/2 Design control — primary reference U.S. Government activity |
| 4684913-0048 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-159-1131 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-159-1131: Head Height: 0.262 INCHES NOMINAL IN; Fastener Length: 6.048 INCHES NOMINAL IN; Shoulder Length: 4.718 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 1.371 INCHES MINIMUM AND 1.373 INCHES MAXIMUM FIRST SHOULDER IN. 18 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.