The Packing Nut, cataloged under National Stock Number 4730-00-202-7980, 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 Northrop Grumman Systems Corporation. Government technical data includes 13 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-202-7980 |
| Primary Part Number | 41853 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Thread Size | 1.000-20 |
| Thread Pitch Diameters | +0.9675 TO 0.9709 INCHES IN |
| Major Unthreaded Outside Diameter | 1.125 INCHES NOMINAL IN |
| Smallest Inside Diameter | 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Screw Thread Location | INTERNAL |
| Length to Shoulder | 0.375 INCHES NOMINAL IN |
| Style Designator | HEXAGON, INTERNAL THREAD, SHOULDERED |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Length | 0.266 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Screw Thread Series Designator | UNEF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 41853 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 4730-00-202-7980 is a Packing Nut, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-202-7980 has 1 cross-referenced part number: 41853 (Northrop Grumman Systems Corporation).
There are 5 known substitutes for 4730-00-202-7980: 3120-00-425-7158, 3455-01-045-3365, 1560-01-422-5707 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 41853: Thread Size: 1.000-20; Thread Pitch Diameters: +0.9675 TO 0.9709 INCHES IN; Overall Length: 0.438 INCHES NOMINAL IN; Major Unthreaded Outside Diameter: 1.125 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.