The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-015-2733, 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 22 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-015-2733 |
| 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 | 1.500 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.156 INCHES NOMINAL IN |
| Body Style | RELIEVED |
| First End Thread Class | 2A A |
| First End Thread Quantity Per Inch | 12 |
| First End Style Designator | PLAIN |
| Second Diameter From Wrenching Feature | 1.375 INCHES NOMINAL IN |
| Concentric Hole Depth | 0.812 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.281 INCHES NOMINAL IN |
| First End Thread Length | 0.312 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 0.875 INCHES NOMINAL IN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.375 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.375 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.250 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.688 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| First Diameter From Wrenching Feature | 1.675 INCHES NOMINAL IN |
| First End Nominal Thread Size | 1.750 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 |
|---|---|
| 4730PL0627439 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 28725 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| C68-13-1363 | 5/9 Secondary reference U.S. Government activity |
| 28725 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 28725 | 5/9 Secondary reference Drs Environmental Systems Inc |
NSN 4730-01-015-2733 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5310-01-228-4048, 9540-01-353-9063, 5330-01-369-2541. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-015-2733: First End Thread Series Designator: UN; Width Across Flats: 1.500 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.156 INCHES NOMINAL IN. 22 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.