The Bolt,shoulder, cataloged under National Stock Number 5306-00-522-4073, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5306-00-522-4073 |
| Primary Part Number | 5224073 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Head Height | 0.310 INCHES NOMINAL IN |
| Fastener Length | 2.410 INCHES NOMINAL IN |
| Shoulder Length | 1.772 INCHES MINIMUM AND 1.776 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 1.3105 INCHES MINIMUM AND 1.3110 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.638 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Criticality Code Justification | AATN AND AATX |
| Nominal Thread Diameter | 1.250 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.850 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 5224073 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5306-00-522-4073 is a Bolt,shoulder, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-522-4073 has 1 manufacturer part number on file: 5224073 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-182-4566. Verify interchangeability with system specifications before substitution.
Key specifications for 5224073: Head Height: 0.310 INCHES NOMINAL IN; Fastener Length: 2.410 INCHES NOMINAL IN; Shoulder Length: 1.772 INCHES MINIMUM AND 1.776 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 1.3105 INCHES MINIMUM AND 1.3110 INCHES MAXIMUM FIRST SHOULDER IN. 17 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.