The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-563-8149, 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 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-563-8149 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| First End Thread Direction | RIGHT-HAND |
| Second End Thread Quantity Per Inch | 28 |
| Second End Nominal Thread Size | 0.250 INCHES IN |
| Second End Thread Class | 3B |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 24 |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 2.031 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.219 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | HIGH PRESSURE FLARE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 3.281 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.094 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 |
| Second End Connection Type | THREADED INTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.373 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.375 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 |
|---|---|
| 2667628-15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-563-8149 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-563-8149: First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Second End Thread Quantity Per Inch: 28; Second End Nominal Thread Size: 0.250 INCHES IN. 21 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.