The Ferrule,brazing,tube Fitting, cataloged under National Stock Number 4730-00-203-4747, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-203-4747 |
| Primary Part Number | 259341 |
| Item Name | Ferrule,brazing,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 |
| Distance From Flanged End to Tubing Clearance Hole | 0.345 INCHES NOMINAL IN |
| Flange Face Diameter | 0.6562 INCHES NOMINAL IN |
| Style Designator | COMPRESSION |
| Flange Inside Diameter | 0.438 INCHES NOMINAL IN |
| Sleeve Outside Diameter | 0.5605 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Flange Width | 0.285 INCHES NOMINAL IN |
| Material | STEEL COMP 316F |
| Flange Outside Diameter | 0.6805 INCHES NOMINAL IN |
| Metallic Hardness Rating | 20.0 MINIMUM ROCKWELL C AND 28.0 MAXIMUM ROCKWELL C |
| Hose/tube Outside Diameter for Which Designed | 0.500 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 |
|---|---|
| 259341 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 259341 | 5/9 Secondary reference Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation |
| 259341 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 4730-00-203-4747 is a Ferrule,brazing,tube Fitting, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-203-4747 has 1 manufacturer part number on file: 259341 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-119-9671. Verify interchangeability with system specifications before substitution.
Key specifications for 259341: Seat Angle in Deg: 37.0; Distance From Flanged End to Tubing Clearance Hole: 0.345 INCHES NOMINAL IN; Flange Face Diameter: 0.6562 INCHES NOMINAL IN; Style Designator: COMPRESSION. 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.