The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-338-5378, 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 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-338-5378 |
| 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) |
| First End Thread Direction | RIGHT-HAND |
| Body Style | RELIEVED |
| First End Thread Class | 3A A |
| First End Style Designator | FLARELESS |
| First End Thread Length | 0.847 INCHES NOMINAL IN |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 3.570 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Nominal Thread Size | 1.000 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 |
|---|---|
| 510-12621-514 | 3/2 Design control — primary reference U.S. Government activity |
| 510-12621 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-338-5378 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-338-5379. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-338-5378: First End Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); First End Thread Direction: RIGHT-HAND; Body Style: RELIEVED; First End Thread Class: 3A A. 9 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.