The Packing Nut, cataloged under National Stock Number 4730-01-159-7980, 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 National Oilwell. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-159-7980 |
| Primary Part Number | 001-011231-304 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | National Oilwell |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Thread Size | 1.625-18 |
| Screw Thread Series Designator | UNEF |
| Screw Thread Location | EXTERNAL |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 001-011231-304 PRIMARY | National Oilwell (USA) |
| Reference | Meaning |
|---|---|
| 001-011231-301 | 5/9 Secondary reference National Oilwell |
NSN 4730-01-159-7980 is a Packing Nut, manufactured by National Oilwell, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-159-7980 has 1 manufacturer part number on file: 001-011231-304 (National Oilwell).
Key specifications for 001-011231-304: Thread Direction: RIGHT-HAND; Thread Size: 1.625-18; Screw Thread Series Designator: UNEF; End Item Identification: NBM WATER PURIFICATION UNIT-REVERSE OSMOSIS (ROWPU).. 5 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.