The Seat,valve, cataloged under National Stock Number 4820-00-855-5118, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-855-5118 |
| Primary Part Number | 5B16 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| Flange Diameter | 0.593 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Material | STEEL CORROSION RESISTING OR COPPER ALLOY OVERALL |
| Seating Surface Shape | ANGULAR |
| Nominal Thread Size | 0.688 INCHES SINGLE THREADED PORTION IN |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Style Designator | THREADED FLANGED |
| Under Flange Height | 0.250 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.000 NOMINAL |
| Body Inside Diameter | 0.546 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5B16 PRIMARY | Watts Regulator Company (USA) |
NSN 4820-00-855-5118 is a Seat,valve, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-855-5118 has 1 cross-referenced part number: 5B16 (Watts Regulator Company).
There are 3 known substitutes for 4820-00-855-5118: 3040-00-192-3397, 5306-00-298-2941, 3040-00-752-1141. Verify interchangeability with system specifications before substitution.
Key specifications for 5B16: Flange Diameter: 0.593 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN; Material: STEEL CORROSION RESISTING OR COPPER ALLOY OVERALL; Seating Surface Shape: ANGULAR. 12 total characteristics are documented in the Federal Logistics Information System.