The Nut,union, cataloged under National Stock Number 4730-01-227-2795, 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 Naval Inventory Control Point Mechanicsburg. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,union |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-227-2795 |
| Primary Part Number | 3423-5001-19-5C1 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 3423-5001-19-5C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B12144-1C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3423-5001 ITEM 05 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3423-5001 ITEM 5C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-3423-5001-19-5C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-3423-5001-19-5C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002 ITEM 05C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-20-5113 ITEM 05C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-20-2214ITEM 05C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 1970 002-20-2214ITEM 05 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| 3423-5001-19-5 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
| 7550478-3423-5001-19-5 | 5/1 Secondary reference Naval Sea Systems Command |
| 3423-5001 ITEM 5 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| 1970 002 ITEM 05 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| G547-0002-3423-5001-19-5 | 5/1 Secondary reference U.S. Government activity |
| 1970 002-20-5113 ITEM 05 | 3/1 Design control — primary reference Mission Systems Orchard Park Inc |
| B12144-1 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| B12144-1 | 5/9 Secondary reference Mission Systems Orchard Park Inc |
| 1970 002 ITEM 05 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
NSN 4730-01-227-2795 is a Nut,union, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-227-2795 has 9 manufacturer part numbers on file: 3423-5001-19-5C1 (Naval Inventory Control Point Mechanicsburg), B12144-1C1 (Naval Inventory Control Point Mechanicsburg), 3423-5001 ITEM 05 (Naval Inventory Control Point Mechanicsburg), 3423-5001 ITEM 5C1 (Naval Inventory Control Point Mechanicsburg), G547-0002-3423-5001-19-5C1 (Naval Inventory Control Point Mechanicsburg) and 4 more.
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-542-3133, 4730-01-568-0738. Verify interchangeability with system specifications before substitution.
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.