The Bolt,shoulder, cataloged under National Stock Number 5306-00-176-8264, 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16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-176-8264 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Fastener Length | 2.126 INCHES NOMINAL IN |
| Shoulder Length | 0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.561 INCHES MINIMUM AND 0.562 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.625 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 52.0 ROCKWELL C NOMINAL OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1040 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 |
|---|---|
| 611346 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5306-00-176-8264 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5940-00-196-3519. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-176-8264: Head Height: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Fastener Length: 2.126 INCHES NOMINAL IN; Shoulder Length: 0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.561 INCHES MINIMUM AND 0.562 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.