The Bolt,shoulder, cataloged under National Stock Number 5306-01-150-7728, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-150-7728 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.312 INCHES NOMINAL IN |
| Fastener Length | 4.343 INCHES NOMINAL IN |
| Shoulder Length | 4.031 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 1.496 INCHES MINIMUM AND 1.498 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.313 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.375 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.875 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | NICKEL ALLOY 400 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 2.125 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 |
|---|---|
| 810-4385049-B-022 | 5/9 Secondary reference U.S. Government activity |
| 803-4385049-B-022 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-150-7728 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-150-7728: Head Height: 0.312 INCHES NOMINAL IN; Fastener Length: 4.343 INCHES NOMINAL IN; Shoulder Length: 4.031 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 1.496 INCHES MINIMUM AND 1.498 INCHES MAXIMUM FIRST SHOULDER IN. 16 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.