The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-909-2000, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-909-2000 |
| Primary Part Number | S6125-50588-1 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| First End Thread Series Designator | UNS |
| Width Across Flats | 1.438 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Thread Quantity Per Inch | 28 |
| Second End Nominal Thread Size | 0.250 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 7.125 INCHES NOMINAL IN |
| Second End Thread Class | 2B |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.141 INCHES NOMINAL IN |
| First End Thread Quantity Per Inch | 14 |
| Wrenching Feature Height | 0.500 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.703 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Second End Thread Direction | RIGHT-HAND |
| Concentric Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.203 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| First Radial Fluid Hole Diameter | 0.128 INCHES NOMINAL IN |
| Length From Bearing Surface of Wrenching Feature to End of Fourth Diameter | 5.250 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 5.125 INCHES NOMINAL IN |
| Material | STEEL |
| Second Radial Fluid Hole Diameter | 0.128 INCHES NOMINAL IN |
| Distance From Second Radial Hole Center to End of Bolt | 1.875 INCHES NOMINAL IN |
| First Diameter From Wrenching Feature | 2.000 INCHES NOMINAL 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 |
|---|---|
| S6125-50588-1 | Rotair Aerospace Corp (USA) |
| S6125-50588-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| S6125-50588-1 | Triumph Actuation Systems - Connecticut, Llc (USA) |
| S6125-50588-1 | Leonardo Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| S6125-50588 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| S6125-50588-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-909-2000 is a Bolt,fluid Passage, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-909-2000 has 4 manufacturer part numbers on file: S6125-50588-1 (Rotair Aerospace Corp), S6125-50588-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), S6125-50588-1 (Triumph Actuation Systems - Connecticut, Llc), S6125-50588-1 (Leonardo Uk Ltd).
Key specifications for S6125-50588-1: First End Thread Series Designator: UNS; Width Across Flats: 1.438 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Thread Quantity Per Inch: 28. 26 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.