The Seat,valve, cataloged under National Stock Number 4820-01-204-9561, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 1 verified specification, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-204-9561 |
| Primary Part Number | 21594 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING SEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21594 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
NSN 4820-01-204-9561 is a Seat,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-204-9561 has 1 cross-referenced part number: 21594 (Spirax Sarco Inc Dba Spirax Sarco).
There are 4 known substitutes for 4820-01-204-9561: 5977-00-084-9174, 2925-00-167-1652, 4140-00-586-6677 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21594: Material: STEEL CORROSION RESISTING SEAT. 1 total characteristics are documented in the Federal Logistics Information System.