The Orifice Plug, cataloged under National Stock Number 4730-01-145-7307, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Orifice Plug |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-145-7307 |
| Item Name | Orifice Plug |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 0319831 | C/1 Advisory reference — outside the item-of-supply concept Brp Us Inc |
| 0319831 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 319831 | 5/9 Secondary reference Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors |
| 319831 | C/1 Advisory reference — outside the item-of-supply concept Brp Us Inc |
| 0319831 | 3/9 Design control — primary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 319831 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 319831 | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 319831 | 5/9 Secondary reference U.S. Government activity |
| 0319831 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-145-7307 is a Orifice Plug, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-160-3946. 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.