The Plate,orifice,fluid, cataloged under National Stock Number 4730-01-487-2281, 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 Rotaryaire Compressor Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-487-2281 |
| Primary Part Number | N-0-1/2-1-1/2X1-1/2 |
| Item Name | Plate,orifice,fluid |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rotaryaire Compressor Corp |
| Status | ACTIVE |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Shape | ROUND |
| 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 |
|---|---|
| N-0-1/2-1-1/2X1-1/2 PRIMARY | Rotaryaire Compressor Corp (USA) |
| Reference | Meaning |
|---|---|
| N-0-.50-1.50X1. | C/1 Advisory reference — outside the item-of-supply concept Rotaryaire Compressor Corp |
| N-0-1/2-11/2X11 | C/1 Advisory reference — outside the item-of-supply concept Rotaryaire Compressor Corp |
NSN 4730-01-487-2281 is a Plate,orifice,fluid, manufactured by Rotaryaire Compressor Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-487-2281 has 1 manufacturer part number on file: N-0-1/2-1-1/2X1-1/2 (Rotaryaire Compressor Corp).
Key specifications for N-0-1/2-1-1/2X1-1/2: Outside Diameter: 0.500 INCHES NOMINAL IN; Shape: ROUND; End Item Identification: WATER FLOW APPLICATIONS. 2 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.