The Nut,tube Coupling,reducing, cataloged under National Stock Number 4730-01-620-2270, 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 Sae International Dba Sae International. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-620-2270 |
| Primary Part Number | AS5175R06 |
| Item Name | Nut,tube Coupling,reducing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5625 INCHES IN |
| Nut Style | TUBE COUPLING |
| Thread Quantity Per Inch | 13 |
| Smallest Inside Diameter | 0.440 INCHES MINIMUM AND 0.443 INCHES MAXIMUM 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 |
|---|---|
| AS5175R06 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS5175R06 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-620-2270 is a Nut,tube Coupling,reducing, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-620-2270 has 1 manufacturer part number on file: AS5175R06 (Sae International Dba Sae International).
Key specifications for AS5175R06: Width Across Flats: 0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.5625 INCHES IN; Part Name Assigned by Controlling Agency: FITTING,UNION AND REDUCER,FLARED. 6 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.