The Bolt,shoulder, cataloged under National Stock Number 5306-00-210-1381, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-210-1381 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.312 INCHES NOMINAL IN |
| Fastener Length | 3.327 INCHES NOMINAL IN |
| Shoulder Length | 2.641 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | MIL-C-16232 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.466 INCHES MINIMUM AND 0.467 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.625 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 240.0 BRINELL STANDARD MINIMUM AND 285.0 BRINELL STANDARD MAXIMUM OVERALL |
| Material Document and Classification | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4340 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 |
|---|---|
| 732164PC3 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5306-00-210-1381 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-210-1381: Head Height: 0.312 INCHES NOMINAL IN; Fastener Length: 3.327 INCHES NOMINAL IN; Shoulder Length: 2.641 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: MIL-C-16232 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.