The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-168-1963, 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 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-168-1963 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 1.115 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AN0172 MFR REF SINGLE TREATMENT RESPONSE |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 12 |
| Wrenching Feature Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| First End Thread Length | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.750 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.749 INCHES MINIMUM AND 0.758 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| First Radial Fluid Hole Diameter | 0.374 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 1.251 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Second Radial Fluid Hole Diameter | 0.374 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Distance From Second Radial Hole Center to End of Bolt | 0.876 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN |
| First Diameter From Wrenching Feature | 1.059 INCHES MINIMUM AND 1.060 INCHES MAXIMUM 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 |
|---|---|
| 204-040-830-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-168-1963 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-168-1963: First End Thread Series Designator: UNF; Width Across Flats: 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 1.115 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN. 20 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.