The Packing Nut, cataloged under National Stock Number 4730-00-200-0489, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-200-0489 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Length to Shoulder | 0.625 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Strength Rating | ERR-060 |
| Thread Length | 0.562 INCHES NOMINAL IN |
| Style Designator | KNURLED, INTERNAL THREAD, SHOULDERED |
| Material Document and Classification | QQ-C-525, COMP 1 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 1.250-14 |
| Screw Thread Series Designator | UNS |
| Thread Class | 2A A |
| Major Unthreaded Outside Diameter | 1.750 INCHES NOMINAL IN |
| Screw Thread Location | INTERNAL |
| Material | COPPER ALLOY 922 |
| Smallest Inside Diameter | 0.397 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 |
| Reference | Meaning |
|---|---|
| 3370692 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 3370692AN | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 3370692AN | 5/9 Secondary reference General Motors Corp |
| 3370692 | 5/9 Secondary reference General Motors Corp |
| 81158S4105-10110 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-200-0489 is a Packing Nut, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-200-0489: Length to Shoulder: 0.625 INCHES NOMINAL IN; Seat Angle in Deg: 45.0; Strength Rating: ERR-060; Thread Length: 0.562 INCHES NOMINAL IN. 15 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.