The Seat,valve, cataloged under National Stock Number 4820-01-270-9643, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William E Williams Valve Corp. Government technical data includes 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-270-9643 |
| Primary Part Number | 8666 ITEM 5 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Material | STEEL UNS J92600 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8666 | William E Williams Valve Corp (USA) |
| 8666 ITEM 5 PRIMARY | William E Williams Valve Corp (USA) |
NSN 4820-01-270-9643 is a Seat,valve, manufactured by William E Williams Valve Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-270-9643 has 2 cross-referenced part numbers: 8666 (William E Williams Valve Corp), 8666 ITEM 5 (William E Williams Valve Corp).
There are 8 known substitutes for 4820-01-270-9643: 1680-00-529-8264, 6850-00-570-9360, 4730-00-622-5843 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8666 ITEM 5: Special Features: WITH STELLITE OVERLAY; Material: STEEL UNS J92600 OVERALL. 2 total characteristics are documented in the Federal Logistics Information System.