The Seat,valve, cataloged under National Stock Number 4820-00-738-8457, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-738-8457 |
| Primary Part Number | 19438-14002-00 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Body Inside Diameter | 3.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Thread Size | 3.500 INCHES SINGLE THREADED PORTION IN |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Flange Seat to Disk End Height | 0.281 INCHES NOMINAL IN |
| Under Flange Height | 0.562 INCHES NOMINAL IN |
| Thread Length | 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Seating Surface Shape | FLAT |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Flange Diameter | 3.750 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 19438-14002-00 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 40725 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 40725PC11IN | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 19438 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 4820-00-738-8457 is a Seat,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-738-8457 has 4 cross-referenced part numbers: 19438-14002-00 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 40725 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 40725PC11IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 19438 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
There are 11 known substitutes for 4820-00-738-8457: 7040-00-008-1826, 5315-00-104-5198, 5340-00-321-2672 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 19438-14002-00: Thread Class: 2A SINGLE THREADED PORTION A; Body Inside Diameter: 3.000 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL; Nominal Thread Size: 3.500 INCHES SINGLE THREADED PORTION IN. 12 total characteristics are documented in the Federal Logistics Information System.