The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-327-0801, 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 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-327-0801 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 2.125 INCHES NOMINAL IN |
| Body Style | PLAIN |
| First End Thread Class | 2A A |
| Cotter Pin Hole Diameter | 0.125 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 2.406 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.218 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.500 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Second End Style Designator | PLAIN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 2.719 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.437 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.156 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.144 INCHES NOMINAL IN |
| Material | STEEL |
| Second Radial Fluid Hole Diameter | 0.144 INCHES NOMINAL IN |
| Distance From Second Radial Hole Center to End of Bolt | 0.125 INCHES NOMINAL IN |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.750 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.750 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 |
|---|---|
| 23231-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-327-0801 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-327-0801: First End Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Width Across Flats: 1.125 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 2.125 INCHES NOMINAL IN. 25 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.