The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-161-1247, 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 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-161-1247 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Width Across Flats | 0.739 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.347 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN |
| Third Diameter From Wrenching Feature | 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Length From Bearing Surface of Wrenching Feature to End of Third Diameter | 1.107 INCHES MINIMUM AND 1.117 INCHES MAXIMUM IN |
| Second Diameter From Wrenching Feature | 0.418 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Concentric Hole Depth | 2.250 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN |
| Wrenching Feature Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | QQ-S-763 COND A FED SPEC ALL MATERIAL RESPONSES |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 1.003 INCHES MINIMUM AND 1.023 INCHES MAXIMUM IN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.636 INCHES MINIMUM AND 1.669 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| First Radial Fluid Hole Diameter | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Material | STEEL COMP 316 OR STEEL COMP 347 |
| First Diameter From Wrenching Feature | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fourth Diameter From Wrenching Feature | 0.418 INCHES MINIMUM AND 0.420 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 |
|---|---|
| 42312E287 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-161-1247 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-161-1247: Width Across Flats: 0.739 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.347 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN; Third Diameter From Wrenching Feature: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Length From Bearing Surface of Wrenching Feature to End of Third Diameter: 1.107 INCHES MINIMUM AND 1.117 INCHES MAXIMUM IN. 18 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.