The Packing Nut, cataloged under National Stock Number 4730-00-970-9627, 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 Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-970-9627 |
| Primary Part Number | 128HM10058-1 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Length to Shoulder | 0.577 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN |
| Thread Length | 0.550 INCHES NOMINAL IN |
| Style Designator | KNURLED, INTERNAL THREAD, SHOULDERED |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 2-1/4IN-16 IN |
| Screw Thread Series Designator | UN |
| Thread Class | 3B |
| Major Unthreaded Outside Diameter | 2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN |
| Screw Thread Location | INTERNAL |
| Material | STEEL COMP 416 |
| Smallest Inside Diameter | 2.056 INCHES MINIMUM AND 2.061 INCHES MAXIMUM 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 |
|---|---|
| 128HM10058-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10058-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-970-9627 is a Packing Nut, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-970-9627 has 1 manufacturer part number on file: 128HM10058-1 (Northrop Grumman Systems Corporation).
Key specifications for 128HM10058-1: Length to Shoulder: 0.577 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN; Thread Length: 0.550 INCHES NOMINAL IN; Style Designator: KNURLED, INTERNAL THREAD, SHOULDERED; Overall Length: 0.718 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 12 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.