The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-343-3277, 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 The Boeing Company Div Defense. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-343-3277 |
| Primary Part Number | 68A312041-2003 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| First End Thread Direction | RIGHT-HAND |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| First End Style Designator | FLARED |
| Wrenching Feature Height | 0.015 INCHES NOMINAL IN |
| First End Thread Length | 0.656 INCHES NOMINAL IN |
| Wrenching Feature Style | ROUND |
| First End Seat Angle | 37.0 DEGREES NOMINAL |
| Second End Style Designator | DOUBLE COMPRESSION |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 2.435 INCHES NOMINAL IN |
| Second End Seat Radius | 0.062 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.437 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| First Radial Fluid Hole Diameter | 0.173 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 3.531 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Second Radial Fluid Hole Diameter | 0.173 INCHES NOMINAL IN |
| Distance From Second Radial Hole Center to End of Bolt | 3.531 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.930 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.375 INCHES IN |
| Head Diameter | 0.930 INCHES NOMINAL 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 |
|---|---|
| 68A312041-2003 | Harlow Aerostructures, Llc (USA) |
| 68A312041-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 68A312041 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-343-3277 is a Bolt,fluid Passage, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-343-3277 has 2 manufacturer part numbers on file: 68A312041-2003 (Harlow Aerostructures, Llc), 68A312041-2003 (The Boeing Company Div Defense).
Key specifications for 68A312041-2003: First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Body Style: PLAIN; First End Thread Class: 3A A. 24 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.