The Reducer,tube, cataloged under National Stock Number 4730-01-516-9208, 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 General Electric Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-516-9208 |
| Primary Part Number | 619E223P10 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Nominal Overall Length | 1.780 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 | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Nominal Thread Size | 1.062 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 321 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 |
| Part Number | Manufacturer |
|---|---|
| 619E223P10 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 619E223 | D/9 Drawing number reference only General Electric Company |
NSN 4730-01-516-9208 is a Reducer,tube, manufactured by General Electric Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-516-9208 has 1 manufacturer part number on file: 619E223P10 (General Electric Company).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-528-2758. Verify interchangeability with system specifications before substitution.
Key specifications for 619E223P10: Connection Style: FLARED (TUBE) ALL ENDS; Nominal Overall Length: 1.780 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Material Document and Classification: AMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 15 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.