The Nut,union, cataloged under National Stock Number 4730-00-228-3200, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-228-3200 |
| Primary Part Number | 410021A |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Shoulder Step Width | 0.105 INCHES NOMINAL IN |
| Shoulder Width | 0.090 INCHES NOMINAL IN |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.000 INCHES IN |
| Nut Diameter | 0.705 INCHES NOMINAL IN |
| Nut Height | 2.470 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 4-1/2 |
| Material | ALUMINUM ALLOY OVERALL |
| Smallest Inside Diameter | 0.228 INCHES NOMINAL IN |
| Shoulder Seat Diameter | 0.510 INCHES NOMINAL IN |
| 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 |
|---|---|
| 410021A PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| 410021A | 3/9 Design control — primary reference Eaton Aviation Corporation |
NSN 4730-00-228-3200 is a Nut,union, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-228-3200 has 1 manufacturer part number on file: 410021A (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 410021A: Shoulder Step Width: 0.105 INCHES NOMINAL IN; Shoulder Width: 0.090 INCHES NOMINAL IN; Thread Series: UN; Thread Direction: RIGHT-HAND. 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.