The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-032-7432, 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 24 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-032-7432 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UN |
| Width Across Flats | 1.359 INCHES MINIMUM AND 1.391 INCHES MAXIMUM IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 1.682 INCHES MINIMUM AND 1.692 INCHES MAXIMUM IN |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 12 |
| First End Style Designator | INVERTED FLARE |
| Concentric Hole Depth | 1.657 INCHES MINIMUM AND 1.717 INCHES MAXIMUM IN |
| Wrenching Feature Height | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| First End Thread Length | 0.438 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | QQ-A-266,T6 OR T651 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-261,T6 OR T6511 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-367,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-267,T4 OR T3511 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-268,T4 OR T351 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-355,T4 OR T351 FED SPEC 2ND MATERIAL RESPONSE |
| First End Seat Angle | 45.0 DEGREES NOMINAL |
| Specification/standard Data | 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 80205-NAS551 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| First Radial Fluid Hole Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 |
| First Diameter From Wrenching Feature | 1.059 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN |
| First End Nominal Thread Size | 1.062 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 |
| Reference | Meaning |
|---|---|
| AS4875 | 3/1 Design control — primary reference Sae International Dba Sae International |
| NAS551-12D | 3/2 Design control — primary reference U.S. Government activity |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| NAS551 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-032-7432 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-032-7432: First End Thread Series Designator: UN; Width Across Flats: 1.359 INCHES MINIMUM AND 1.391 INCHES MAXIMUM IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 1.682 INCHES MINIMUM AND 1.692 INCHES MAXIMUM IN. 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.