The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-342-3155, 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 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-342-3155 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Second End Nominal Thread Size | 0.190 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.837 INCHES NOMINAL IN |
| Second End Thread Class | 3B |
| Body Style | PLAIN |
| Concentric Hole Depth | 1.250 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.250 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Second End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 0.413 INCHES NOMINAL IN |
| Second End Style Designator | GASKET SEAL |
| Concentric Hole Diameter | 0.371 INCHES NOMINAL IN |
| Second End Thread Length | 0.250 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL TUBE |
| 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 |
|---|---|
| 510-12623-519 | 3/2 Design control — primary reference U.S. Government activity |
| 510-12623 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-342-3155 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): 4730-01-342-3156, 4730-01-342-3157, 4730-01-342-3158. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-342-3155: Second End Nominal Thread Size: 0.190 INCHES IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 0.837 INCHES NOMINAL IN; Second End Thread Class: 3B; Body Style: PLAIN. 13 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.