The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-522-4187, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-522-4187 |
| Primary Part Number | 5224187 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| First End Thread Series Designator | UNS |
| Width Across Flats | 1.740 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 6.156 INCHES NOMINAL IN |
| Third Diameter From Wrenching Feature | 0.910 INCHES NOMINAL IN |
| First End Thread Class | 2A A |
| Cotter Pin Hole Diameter | 0.140 INCHES NOMINAL IN |
| First End Thread Quantity Per Inch | 14 |
| Length From Bearing Surface of Wrenching Feature to End of Third Diameter | 6.344 INCHES NOMINAL IN |
| Second Diameter From Wrenching Feature | 1.000 INCHES NOMINAL IN |
| Concentric Hole Depth | 6.500 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.500 INCHES NOMINAL IN |
| Second End Thread Series Designator | NPT |
| First End Thread Length | 0.969 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 6.250 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 7.312 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.344 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.156 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.188 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 6.875 INCHES NOMINAL IN |
| Material | STEEL |
| Second Radial Fluid Hole Diameter | 0.188 INCHES NOMINAL IN |
| Distance From Second Radial Hole Center to End of Bolt | 5.875 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL PIPE |
| First Diameter From Wrenching Feature | 1.374 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| First End Nominal Thread Size | 1.000 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 |
| Part Number | Manufacturer |
|---|---|
| 5224187 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| A224187 | 5/9 Secondary reference CAGE 00000 |
NSN 4730-00-522-4187 is a Bolt,fluid Passage, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-522-4187 has 1 manufacturer part number on file: 5224187 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5224187: First End Thread Series Designator: UNS; Width Across Flats: 1.740 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 6.156 INCHES NOMINAL IN. 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.