The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-409-2557, 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 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-409-2557 |
| 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 | 1.000 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| First End Thread Class | 3B |
| First End Style Designator | HIGH PRESSURE FLARE |
| First End Thread Length | 0.250 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Seat Angle | 20.0 DEGREES NOMINAL |
| First End Connection Type | THREADED INTERNAL TUBE |
| Material | STEEL |
| First End Nominal Thread Size | 0.250 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 |
|---|---|
| 1285086-105 | 3/9 Design control — primary reference Lockheed Corp |
| 1285086-105 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4730-01-409-2557 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-409-2557: First End Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Width Across Flats: 1.000 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; First End Thread Class: 3B. 12 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.