The Packing Nut, cataloged under National Stock Number 4730-00-774-4897, 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 Howmet Global Fastening Systems Inc Div Rosan / Eagle Products. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4730-00-774-4897 |
| Primary Part Number | 7744897 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Howmet Global Fastening Systems Inc Div Rosan / Eagle Products |
| Status | ACTIVE |
| Length to Shoulder | 0.440 INCHES NOMINAL IN |
| Width Across Flats | 2.000 INCHES NOMINAL IN |
| Largest Inside Diameter | 1.807 INCHES MINIMUM AND 1.814 INCHES MAXIMUM IN |
| Thread Length | 0.360 INCHES NOMINAL IN |
| Style Designator | HEXAGON, INTERNAL THREAD, SHOULDERED |
| Smallest Outside Diameter | 1.980 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 1-7/8IN-16 IN |
| Screw Thread Series Designator | UN |
| Thread Class | 3B |
| Major Unthreaded Outside Diameter | 1.980 INCHES NOMINAL IN |
| Screw Thread Location | INTERNAL |
| Material | STEEL COMP 1212 |
| Smallest Inside Diameter | 1.530 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 |
|---|---|
| 7744897 PRIMARY | Howmet Global Fastening Systems Inc Div Rosan / Eagle Products (USA) |
| Reference | Meaning |
|---|---|
| 301873 | 5/9 Secondary reference Renk America Llc Div Renk America |
| 7744897 | 5/9 Secondary reference Renk America Llc Div Renk America |
| 7744897 | 5/9 Secondary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| 7744897 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 4730-00-774-4897 is a Packing Nut, manufactured by Howmet Global Fastening Systems Inc Div Rosan / Eagle Products, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-774-4897 has 1 manufacturer part number on file: 7744897 (Howmet Global Fastening Systems Inc Div Rosan / Eagle Products).
2 possible matches (shared part number, not a government interchangeability claim): 6675-01-041-0101, 5975-01-580-0466. Verify interchangeability with system specifications before substitution.
Key specifications for 7744897: Length to Shoulder: 0.440 INCHES NOMINAL IN; Width Across Flats: 2.000 INCHES NOMINAL IN; Largest Inside Diameter: 1.807 INCHES MINIMUM AND 1.814 INCHES MAXIMUM IN; Thread Length: 0.360 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.