The Disk,valve, cataloged under National Stock Number 4820-00-334-3866, 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 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-334-3866 |
| Primary Part Number | 44477 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Nominal Thread Size | 0.313 INCHES IN |
| Seat Angle | 37.0 DEGREES NOMINAL |
| Thread Series Designator | UNF |
| Material | STEEL CORROSION RESISTING |
| Outside Diameter | 0.652 INCHES NOMINAL IN |
| Style Designator | PLUG |
| Thread Class | 2B |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 44477 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
NSN 4820-00-334-3866 is a Disk,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-334-3866 has 1 cross-referenced part number: 44477 (Spirax Sarco Inc Dba Spirax Sarco).
There is 1 known substitute for 4820-00-334-3866: 5355-00-668-6049. Verify interchangeability with system specifications before substitution.
Key specifications for 44477: Nominal Thread Size: 0.313 INCHES IN; Seat Angle: 37.0 DEGREES NOMINAL; Thread Series Designator: UNF; Material: STEEL CORROSION RESISTING. 9 total characteristics are documented in the Federal Logistics Information System.