The Seat,valve, cataloged under National Stock Number 4820-00-334-3857, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-334-3857 |
| Primary Part Number | 42934 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Body Inside Diameter | 0.625 INCHES NOMINAL IN |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Thread Length | 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Flange Seat to Disk End Height | 0.125 INCHES NOMINAL IN |
| Nominal Thread Size | 1.000 INCHES SINGLE THREADED PORTION IN |
| Seating Surface Shape | FLAT |
| Under Flange Height | 0.312 INCHES NOMINAL IN |
| Flange Diameter | 1.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 42934 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
NSN 4820-00-334-3857 is a Seat,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-334-3857 has 1 cross-referenced part number: 42934 (Spirax Sarco Inc Dba Spirax Sarco).
There are 2 known substitutes for 4820-00-334-3857: 5330-01-040-3277, 9540-01-086-0581. Verify interchangeability with system specifications before substitution.
Key specifications for 42934: Body Inside Diameter: 0.625 INCHES NOMINAL IN; Thread Series Designator: UNEF SINGLE THREADED PORTION; Thread Length: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 12 total characteristics are documented in the Federal Logistics Information System.