The Bolt,shoulder, cataloged under National Stock Number 5306-01-185-2198, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-185-2198 |
| Primary Part Number | 74A831174-2001 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 3.625 INCHES NOMINAL IN |
| Shoulder Length | 1.969 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.359 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 1.480 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.062 INCHES MINIMUM AND 0.065 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MIL-S-6049 COND D MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 COND C MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.507 INCHES NOMINAL FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74A831174-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10116111 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5306-01-185-2198 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-185-2198 has 1 manufacturer part number on file: 74A831174-2001 (The Boeing Company Div Defense).
Key specifications for 74A831174-2001: Head Height: 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Fastener Length: 3.625 INCHES NOMINAL IN; Shoulder Length: 1.969 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.359 INCHES NOMINAL 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.