The Reducer,tube, cataloged under National Stock Number 4730-00-754-6210, 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 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-754-6210 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | SWIVEL NUT FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL)(TUBE) FIRST END |
| Seat Nominal Radius | 0.062 INCHES FIRST END IN |
| Nominal Overall Length | 1.642 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Specification/standard Data | 80205-NAS1566 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Thread Class | 2A SECOND END A |
| Thread Class | 2B FIRST END |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF SECOND END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| NAS1566C6-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-754-6210 is a Reducer,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-754-6210: Connection Style: PLAIN (TUBE) SECOND END; Connection Style: SWIVEL NUT FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL)(TUBE) FIRST END; Seat Nominal Radius: 0.062 INCHES FIRST END IN; Nominal Overall Length: 1.642 INCHES IN. 18 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.