The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-370-5641, 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 29 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-370-5641 |
| 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 Nominal Thread Size | 0.250 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 2.168 INCHES NOMINAL IN |
| Second End Thread Class | 2B |
| Body Style | SHOULDER |
| First End Thread Class | 2A A |
| First End Style Designator | PLAIN |
| Second Diameter From Wrenching Feature | 0.358 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN |
| Concentric Hole Depth | 2.109 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.312 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.469 INCHES NOMINAL IN |
| Wrenching Feature Style | ROUND |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 2.268 INCHES NOMINAL IN |
| Second End Style Designator | DOUBLE COMPRESSION |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 2.637 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.211 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM |
| Minimum Tensile Strength | 126000 POUNDS PER SQUARE INCH LBS |
| First Radial Fluid Hole Diameter | 0.094 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.887 INCHES NOMINAL IN |
| Material | STEEL |
| Second End Thread Length | 0.312 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.561 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 |
| Reference | Meaning |
|---|---|
| 3383293-9 | 3/2 Design control — primary reference U.S. Government activity |
| 3383293-9 | 5/9 Secondary reference The Boeing Company |
| 3383293 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-00-370-5641 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-370-5641: First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Second End Nominal Thread Size: 0.250 INCHES IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 2.168 INCHES NOMINAL IN. 29 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.