The Packing Nut, cataloged under National Stock Number 4730-00-522-2580, 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 Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-522-2580 |
| Primary Part Number | 5222580 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
| Status | ACTIVE |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Style Designator | HEXAGON, EXTERNAL THREAD, INVERTED FLARE |
| Material Document and Classification | QQ-C-590 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-L-225,COMP 5 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 1IN-14 IN |
| Screw Thread Series Designator | UNF |
| Thread Class | 2A A |
| Major Unthreaded Outside Diameter | 0.898 INCHES MINIMUM AND 0.903 INCHES MAXIMUM IN |
| Screw Thread Location | EXTERNAL |
| Material | COPPER ALLOY |
| Smallest Inside Diameter | 0.469 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 |
|---|---|
| 5222580 PRIMARY | Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA) |
NSN 4730-00-522-2580 is a Packing Nut, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-522-2580 has 1 manufacturer part number on file: 5222580 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development).
Key specifications for 5222580: Width Across Flats: 0.750 INCHES NOMINAL IN; Seat Angle in Deg: 45.0; Thread Length: 0.625 INCHES NOMINAL IN; Style Designator: HEXAGON, EXTERNAL THREAD, INVERTED FLARE. 14 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.