The Seat,valve, cataloged under National Stock Number 4820-01-237-6223, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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 | 4820-01-237-6223 |
| Primary Part Number | 1385541 PIECE 4 8IN |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Material | NICKEL ALLOY BODY |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Style Designator | PLAIN |
| Body Outside Diameter | 9.625 INCHES NOMINAL IN |
| Seating Surface Shape | O-RING |
| Nominal Thread Size | 12.000 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Length | 1.062 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Body Inside Diameter | 9.000 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 4 SINGLE THREADED PORTION |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1385541 PIECE 15 8IN | Naval Ship Systems Command (USA) |
| 1385541 | Naval Ship Systems Command (USA) |
| 1385541 PIECE 4 8IN PRIMARY | Naval Ship Systems Command (USA) |
| 303541 PRIMARY | The Walworth Company (USA) |
NSN 4820-01-237-6223 is a Seat,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-237-6223 has 4 cross-referenced part numbers: 1385541 PIECE 15 8IN (Naval Ship Systems Command), 1385541 (Naval Ship Systems Command), 1385541 PIECE 4 8IN (Naval Ship Systems Command), 303541 (The Walworth Company).
There are 5 known substitutes for 4820-01-237-6223: 4920-00-179-7079, 2940-00-745-7730, 5342-00-752-1094 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1385541 PIECE 4 8IN: Material: NICKEL ALLOY BODY; Thread Series Designator: UNS SINGLE THREADED PORTION; Style Designator: PLAIN; Overall Height: 1.062 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.