The Packing Nut, cataloged under National Stock Number 4730-01-019-4570, 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 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-019-4570 |
| Primary Part Number | 90197-1 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Seat Angle in Deg | 37.0 |
| Smallest Inside Diameter | 0.203 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN |
| Screw Thread Location | EXTERNAL |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Style Designator | HEXAGON, EXTERNAL THREAD, INVERTED FLARE |
| Material | COPPER ALLOY |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Class | 2A A |
| Screw Thread Series Designator | UNF |
| Thread Length | 0.266 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Thread Size | 3/8-24 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 90197-1 PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
NSN 4730-01-019-4570 is a Packing Nut, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-019-4570 has 1 cross-referenced part number: 90197-1 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).
There are 2 known substitutes for 4730-01-019-4570: 5330-01-130-4291, 5930-01-530-7998. Verify interchangeability with system specifications before substitution.
Key specifications for 90197-1: Thread Direction: RIGHT-HAND; Seat Angle in Deg: 37.0; Smallest Inside Diameter: 0.203 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN; Screw Thread Location: EXTERNAL. 13 total characteristics are documented in the Federal Logistics Information System.