The Reducer,tube, cataloged under National Stock Number 4730-01-485-7683, 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 Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-485-7683 |
| Primary Part Number | YAY5-6-4C |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division |
| Status | ACTIVE |
| 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 |
|---|---|
| YAY5-6-4C PRIMARY | Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division (USA) |
| Reference | Meaning |
|---|---|
| A9-LM4 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division |
NSN 4730-01-485-7683 is a Reducer,tube, manufactured by Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-485-7683 has 1 manufacturer part number on file: YAY5-6-4C (Parker-Hannifin Corporation Dba Parker Hannifin Corp Div Parflex Division).
Key specifications for YAY5-6-4C: Special Features: ADAPTER IS USED WITH TYPE "M" SWIVEL HOSE FITTING 9/16"- 18THD CRIMPED TO THE HOSE, THERE IS A 1/4" DIAMETER ORIFICE THROUGH ADAPTER AND RATED FOR MEDIUM PRESSURE; Part Name Assigned by Controlling Agency: ADAPTER, 1/4" MEDIUM PRESSURE; End Item Identification: INTERCONNECTION; Reducer Type: CONCENTRIC. 1 specification is 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.