The Bolt,machine, cataloged under National Stock Number 5306-00-784-1557, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-784-1557 |
| Primary Part Number | 4819417-501 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 1.344 INCHES NOMINAL IN |
| Thread Length | 0.656 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.688 INCHES NOMINAL IN |
| Width Between Flats | 0.502 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 4819417-501 | The Boeing Company (USA) |
| 291AS127-5 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 4819417-501 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-784-1557 is a Bolt,machine, manufactured by The Boeing Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-784-1557 has 2 manufacturer part numbers on file: 4819417-501 (The Boeing Company), 291AS127-5 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 4819417-501: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 1.344 INCHES NOMINAL IN; Thread Length: 0.656 INCHES MINIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN. 14 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.