The Seat,valve, cataloged under National Stock Number 4820-00-063-8820, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Barksdale, Inc. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-063-8820 |
| Primary Part Number | A21494 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Barksdale, Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 90.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-063-8820 is a Seat,valve, manufactured by Barksdale, Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-063-8820 has 2 cross-referenced part numbers: A21494 (Barksdale, Inc), 21494 (Barksdale, Inc).
There are 8 known substitutes for 4820-00-063-8820: 5915-00-140-9230, 5110-00-186-4192, 6620-00-408-5478 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for A21494: Seat Angle in Deg: 90.000 NOMINAL; Seating Surface Shape: ANGULAR; Material: COPPER ALLOY OVERALL. 3 total characteristics are documented in the Federal Logistics Information System.