The Seat,valve, cataloged under National Stock Number 4820-00-343-6040, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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 | 4820-00-343-6040 |
| Primary Part Number | 20677 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Schneider Electric Systems Usa Inc |
| Status | ACTIVE |
| Thread Quantity Per Inch | 15 SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Material | COPPER ALLOY OVERALL |
| Seating Surface Shape | ANGULAR |
| Body Inside Diameter | 1.875 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Flange Seat to Disk End Height | 0.185 INCHES NOMINAL IN |
| Flange Diameter | 2.500 INCHES NOMINAL IN |
| Under Flange Height | 0.395 INCHES NOMINAL IN |
| Nominal Thread Size | 2.312 INCHES SINGLE THREADED PORTION IN |
| Thread Length | 0.345 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Seat Angle in Deg | 45.000 NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20677 PRIMARY | Schneider Electric Systems Usa Inc (USA) |
NSN 4820-00-343-6040 is a Seat,valve, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-343-6040 has 1 cross-referenced part number: 20677 (Schneider Electric Systems Usa Inc).
There are 5 known substitutes for 4820-00-343-6040: 4210-00-136-4667, 5133-00-189-9280, 5330-00-640-9344 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20677: Thread Quantity Per Inch: 15 SINGLE THREADED PORTION; Style Designator: THREADED FLANGED; Thread Series Designator: UNS SINGLE THREADED PORTION; Material: COPPER ALLOY OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.