The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-877-6794, 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 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-877-6794 |
| 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 |
| Second End Thread Quantity Per Inch | 20 |
| Second End Nominal Thread Size | 0.438 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.781 INCHES NOMINAL IN |
| Second End Thread Class | 2A A |
| Body Style | BODY WRENCHING |
| First End Thread Class | 2A A |
| First End Thread Quantity Per Inch | 20 |
| First End Style Designator | PLAIN |
| Second End Seat Angle | 12.0 DEGREES NOMINAL |
| Wrenching Feature Height | 0.187 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.375 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | INVERTED FLARE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.188 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.156 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.187 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.812 INCHES NOMINAL IN |
| Material | ALUMINUM |
| Second End Thread Length | 0.406 INCHES NOMINAL IN |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.438 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.437 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 |
|---|---|
| NAS1236J4 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1236CF4 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-877-6794 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-877-6794: First End Thread Series Designator: UNF; Width Across Flats: 0.688 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Thread Quantity Per Inch: 20. 28 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.