The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-246-9818, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-246-9818 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.781 INCHES NOMINAL IN |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 20 |
| First End Style Designator | INVERTED FLARE |
| Concentric Hole Depth | 0.938 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.156 INCHES NOMINAL IN |
| First End Thread Length | 0.363 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| First End Seat Angle | 45.0 DEGREES NOMINAL |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.209 INCHES MINIMUM AND 1.229 INCHES MAXIMUM IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.162 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM |
| First Radial Fluid Hole Diameter | 0.031 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 0.796 INCHES NOMINAL IN |
| Material | STEEL |
| First Diameter From Wrenching Feature | 0.362 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN |
| First End Nominal Thread Size | 0.438 INCHES IN |
| 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 |
|---|---|
| 4958982-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-246-9818 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-246-9818: First End Thread Series Designator: UNF; Width Across Flats: 0.688 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.781 INCHES NOMINAL IN. 22 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.