The Packing Nut, cataloged under National Stock Number 4730-00-218-5912, 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 Hatch & Kirk, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-218-5912 |
| Primary Part Number | HKA-A502-1-1 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | CANCELLED |
| Thread Class | 2B |
| Length to Shoulder | 0.250 INCHES NOMINAL IN |
| Major Unthreaded Outside Diameter | 0.938 INCHES NOMINAL IN |
| Style Designator | KNURLED, INTERNAL THREAD, SHOULDERED |
| Smallest Inside Diameter | 0.765 INCHES NOMINAL IN |
| Screw Thread Location | INTERNAL |
| Material | STEEL |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Screw Thread Series Designator | UNEF |
| Thread Size | 0.812-20 |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| NN24-2PC40 | Alfa Laval Inc. (USA) |
| 3N6PC40 | Alfa Laval Inc. (USA) |
| 3N48ALT6PC40 | Alfa Laval Inc. (USA) |
| NN-19-1 SYMBOL 40 | Alfa Laval Inc. (USA) |
| 3N21-2PC40 | Alfa Laval Inc. (USA) |
| 3N40PC40 | Alfa Laval Inc. (USA) |
| 3N68PC40 | Alfa Laval Inc. (USA) |
| 40-5A | Alfa Laval Inc. (USA) |
| NN11-17PC40 | Alfa Laval Inc. (USA) |
| 3N46PC40 | Alfa Laval Inc. (USA) |
| N35-7PC40 | Alfa Laval Inc. (USA) |
| 3N73PC40 | Alfa Laval Inc. (USA) |
| NN12PC40 | Alfa Laval Inc. (USA) |
| AA502-1 | Alfa Laval Inc. (USA) |
| 3N8PC40 | Alfa Laval Inc. (USA) |
| 3N20-2PC40 | Alfa Laval Inc. (USA) |
| 3N9PC40 | Alfa Laval Inc. (USA) |
| 3N23-5PC40 | Alfa Laval Inc. (USA) |
| 3N67PC40 | Alfa Laval Inc. (USA) |
| N35-8PC40 | Alfa Laval Inc. (USA) |
NSN 4730-00-218-5912 is a Packing Nut, manufactured by Hatch & Kirk, Inc., classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-218-5912 has 33 cross-referenced part numbers: NN24-2PC40 (Alfa Laval Inc.), 3N6PC40 (Alfa Laval Inc.), 3N48ALT6PC40 (Alfa Laval Inc.), NN-19-1 SYMBOL 40 (Alfa Laval Inc.), 3N21-2PC40 (Alfa Laval Inc.) and 28 more.
There are 12 known substitutes for 4730-00-218-5912: 3040-00-152-2458, 3110-00-155-6658, 4310-00-216-7838 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for HKA-A502-1-1: Thread Class: 2B; Length to Shoulder: 0.250 INCHES NOMINAL IN; Major Unthreaded Outside Diameter: 0.938 INCHES NOMINAL IN; Style Designator: KNURLED, INTERNAL THREAD, SHOULDERED. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-218-5912 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.