The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-337-7251, 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 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-337-7251 |
| 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 JOINT FINE (UNJF) |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Nominal Thread Size | 0.250 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 6.842 INCHES NOMINAL IN |
| Second End Thread Class | 3B |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.142 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 3.852 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.230 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| First End Thread Length | 0.650 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | DMS2263 CL3 GRB MFR REF SINGLE MATERIAL RESPONSE |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | GASKET SEAL |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 7.492 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.187 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.182 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 4.015 INCHES NOMINAL IN |
| Material | TITANIUM |
| Second End Thread Length | 0.157 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL BOSS |
| First Diameter From Wrenching Feature | 0.498 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 17P6W6029 | D/9 Drawing number reference only U.S. Government activity |
| 17P6W6029-501 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-337-7251 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-337-7251: First End Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Width Across Flats: 0.750 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Nominal Thread Size: 0.250 INCHES IN. 28 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.