The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-617-5544, 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 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-617-5544 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Width Across Flats | 0.9220 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM IN |
| Second End Thread Quantity Per Inch | 28 |
| Second End Nominal Thread Size | 0.250 INCHES IN |
| Second End Thread Class | 2B |
| First End Thread Class | 2A A |
| First End Thread Quantity Per Inch | 11 |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 1.00 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | SAE249 GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Surface Treatment | CADMIUM |
| Material | STEEL |
| Second End Thread Length | 0.19 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL BOSS |
| First End Nominal Thread Size | 0.625 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 |
|---|---|
| SW32291-5 | 3/2 Design control — primary reference U.S. Government activity |
| SW32291 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-617-5544 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-617-5544: First End Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Width Across Flats: 0.9220 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM IN; Second End Thread Quantity Per Inch: 28; Second End Nominal Thread Size: 0.250 INCHES IN. 17 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.