The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-346-7905, 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 11 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-346-7905 |
| 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 | 1.500 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| First End Thread Class | 3A A |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL (BOSS) |
| First End Thread Length | 1.313 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | MIL-S-24093,TY1,CL C MIL STD SINGLE MATERIAL RESPONSE |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Material | STEEL |
| First End Nominal Thread Size | 1.500 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 |
|---|---|
| 2210-27 PIECE 39 OR 40 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 122-4323770 PIECE 39 OR 40 | 5/2 Secondary reference U.S. Government activity |
| 122-4323770 PIECE 39 | 3/2 Design control — primary reference U.S. Government activity |
| 122-4323770 | D/9 Drawing number reference only U.S. Government activity |
| 122-4323770 PIECE 40 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-346-7905 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 2040-01-365-8885, 2040-01-365-8886, 2040-01-365-8887. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-346-7905: First End Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Width Across Flats: 1.500 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; First End Thread Class: 3A A. 11 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.