The Ferrule,swage,tube Coupling, cataloged under National Stock Number 4730-01-350-0129, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-350-0129 |
| Primary Part Number | GF530BF350 |
| Item Name | Ferrule,swage,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Distance From Flanged End to Tubing Clearance Hole | 0.195 INCHES NOMINAL IN |
| Slot Quantity | 5 |
| Style Designator | DOUBLE FLANGE (SEAL GROOVE) |
| Flange Inside Diameter | 3.475 INCHES NOMINAL IN |
| Sleeve Outside Diameter | 3.785 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Slot Depth | 0.091 INCHES NOMINAL IN |
| Material | STEEL COMP XM-12 |
| Flange Outside Diameter | 3.785 INCHES NOMINAL IN |
| Slot Width | 0.390 INCHES NOMINAL IN |
| Hose/tube Outside Diameter for Which Designed | 3.500 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 | X |
| Part Number | Manufacturer |
|---|---|
| GF530BF350 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GF530BF | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| F20035CD | 3/9 Design control — primary reference Eaton Aviation Corporation |
NSN 4730-01-350-0129 is a Ferrule,swage,tube Coupling, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-350-0129 has 1 manufacturer part number on file: GF530BF350 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-350-0130. Verify interchangeability with system specifications before substitution.
Key specifications for GF530BF350: Distance From Flanged End to Tubing Clearance Hole: 0.195 INCHES NOMINAL IN; Slot Quantity: 5; Style Designator: DOUBLE FLANGE (SEAL GROOVE); Flange Inside Diameter: 3.475 INCHES NOMINAL IN. 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.