The Disk,valve, cataloged under National Stock Number 4820-01-540-3000, 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 3 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-540-3000 |
| Primary Part Number | 131574 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Style Designator | POPPET |
| Outside Diameter | 4.375 INCHES NOMINAL IN |
| Material | STEEL COMP 304 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 131574 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 055959ITEM5 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 4820-01-540-3000 is a Disk,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 4820-01-540-3000 has 2 cross-referenced part numbers: 131574 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 055959ITEM5 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
There are 3 known substitutes for 4820-01-540-3000: 5310-00-012-1574, 5310-00-878-7639, 4720-01-641-6567. Verify interchangeability with system specifications before substitution.
Key specifications for 131574: Style Designator: POPPET; Part Name Assigned by Controlling Agency: DISC ASSEMBLY; Outside Diameter: 4.375 INCHES NOMINAL IN; Material: STEEL COMP 304. 6 total characteristics are documented in the Federal Logistics Information System.