The Seat,valve, cataloged under National Stock Number 4820-01-166-8704, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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 | 4820-01-166-8704 |
| Primary Part Number | 35298 |
| 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 |
| Seat Angle in Deg | 30.000 NOMINAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Flange Seat to Disk End Height | 0.335 INCHES NOMINAL IN |
| Body Inside Diameter | 4.000 INCHES NOMINAL IN |
| Under Flange Height | 0.585 INCHES NOMINAL IN |
| Thread Length | 0.410 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Flange Diameter | 4.857 INCHES NOMINAL IN |
| Seating Surface Shape | ANGULAR |
| Thread Quantity Per Inch | 14 SINGLE THREADED PORTION |
| Nominal Thread Size | 4.625 INCHES SINGLE THREADED PORTION IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 35298 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 056625 ITEM 21 35298 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 4820-01-166-8704 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 4820-01-166-8704 has 2 cross-referenced part numbers: 35298 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 056625 ITEM 21 35298 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
There are 5 known substitutes for 4820-01-166-8704: 2520-00-104-8736, 2940-00-377-5550, 5360-00-781-9850 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 35298: Seat Angle in Deg: 30.000 NOMINAL; Material: STEEL CORROSION RESISTING OVERALL; Thread Series Designator: UNS SINGLE THREADED PORTION; Style Designator: THREADED FLANGED. 13 total characteristics are documented in the Federal Logistics Information System.