The Reducer,tube, cataloged under National Stock Number 4730-01-216-6451, 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 Cfm International Inc Dba Cfm International. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-216-6451 |
| Primary Part Number | 619E223P52 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cfm International Inc Dba Cfm International |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Seat Nominal Radius | 0.312 INCHES ALL ENDS IN |
| Nominal Overall Length | 1.360 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | AMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 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 | 0.562 INCHES FIRST END IN |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 619E223P52 PRIMARY | Cfm International Inc Dba Cfm International (USA) |
NSN 4730-01-216-6451 is a Reducer,tube, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-216-6451 has 1 manufacturer part number on file: 619E223P52 (Cfm International Inc Dba Cfm International).
Key specifications for 619E223P52: Connection Style: FLARED (TUBE) ALL ENDS; Seat Nominal Radius: 0.312 INCHES ALL ENDS IN; Nominal Overall Length: 1.360 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 13 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.