The Seat,valve, cataloged under National Stock Number 4820-00-399-2887, 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 11 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 | 4820-00-399-2887 |
| Primary Part Number | 43210 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Material | STEEL OVERALL |
| Body Inside Diameter | 1.343 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Flange Seat to Disk End Height | 0.156 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Under Flange Height | 0.375 INCHES NOMINAL IN |
| Style Designator | THREADED FLANGED |
| Flange Diameter | 1.875 INCHES NOMINAL IN |
| Nominal Thread Size | 1.625 INCHES SINGLE THREADED PORTION IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 43210 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
NSN 4820-00-399-2887 is a Seat,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-399-2887 has 1 cross-referenced part number: 43210 (Spirax Sarco Inc Dba Spirax Sarco).
There are 5 known substitutes for 4820-00-399-2887: 3110-00-144-8540, 3110-00-155-6258, 3110-00-293-9607 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 43210: Thread Series Designator: UNEF SINGLE THREADED PORTION; Material: STEEL OVERALL; Body Inside Diameter: 1.343 INCHES NOMINAL IN; Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN. 12 total characteristics are documented in the Federal Logistics Information System.