The Packing Nut, cataloged under National Stock Number 4730-01-718-0285, 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 Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Packing Nut |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-718-0285 |
| Primary Part Number | 726-8836396-122 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| 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 |
|---|---|
| 563-8837194-83 | Naval Sea Systems Command (USA) |
| 726-8836396-122 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| R6961602-83 | 5/2 Secondary reference U.S. Government activity |
| 726-8836396 | D/9 Drawing number reference only Naval Sea Systems Command |
| R5535002-122 | 5/2 Secondary reference U.S. Government activity |
| LSA003267-83 | 5/2 Secondary reference U.S. Government activity |
| LSA003155-122 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-718-0285 is a Packing Nut, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-718-0285 has 2 manufacturer part numbers on file: 563-8837194-83 (Naval Sea Systems Command), 726-8836396-122 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-718-3770, 5305-01-722-3712. 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.