The Packing Nut, cataloged under National Stock Number 4730-00-549-4780, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-549-4780 |
| Primary Part Number | 225120 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division |
| Status | ACTIVE |
| Largest Inside Diameter | 0.285 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Smallest Inside Diameter | 0.150 INCHES MINIMUM IN |
| Length to Shoulder | 0.260 INCHES MAXIMUM IN |
| Screw Thread Location | EXTERNAL |
| Width Across Flats | 0.375 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Surface Treatment | ANODIZE |
| Style Designator | HEXAGON, EXTERNAL THREAD, RECESSED HEAD |
| Thread Length | 0.180 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Thread Size | 1/4-28 |
| Thread Direction | RIGHT-HAND |
| Screw Thread Series Designator | UNF |
| Casehardening Indicator | NOT CASEHARDENED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 225120 | Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division (USA) |
NSN 4730-00-549-4780 is a Packing Nut, manufactured by Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-549-4780 has 1 cross-referenced part number: 225120 (Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division).
There are 3 known substitutes for 4730-00-549-4780: 4320-00-330-6878, 5331-00-816-3546, 7690-01-668-2370. Verify interchangeability with system specifications before substitution.
Key specifications for 225120: Largest Inside Diameter: 0.285 INCHES MAXIMUM IN; Thread Class: 2A A; Smallest Inside Diameter: 0.150 INCHES MINIMUM IN; Length to Shoulder: 0.260 INCHES MAXIMUM IN. 15 total characteristics are documented in the Federal Logistics Information System.