The Seat,valve, cataloged under National Stock Number 4820-01-064-0399, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-064-0399 |
| Primary Part Number | N-7222 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.219 INCHES NOMINAL IN |
| Flange Diameter | 2.031 INCHES NOMINAL IN |
| Thread Length | 0.380 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | MIL-S-870 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material Document and Classification | MIL-S-870 MIL SPEC ALL MATERIAL RESPONSES OVERALLUNABLE TO DECODE |
| Body Inside Diameter | 0.953 INCHES NOMINAL IN |
| Nominal Thread Size | 1.500 INCHES SINGLE THREADED PORTION IN |
| Nominal Thread Size | 1.500 INCHES SINGLE THREADED PORTIONUNABLE TO DECODE IN |
| Under Flange Height | 0.547 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 8.000 NOMINAL |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Thread Series Designator | UNF SINGLE THREADED PORTIONUNABLE TO DECODE |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| N-7222 PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
NSN 4820-01-064-0399 is a Seat,valve, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-064-0399 has 1 manufacturer part number on file: N-7222 (Metrex Valve Corp. Dba Metrex Valve Corp).
Key specifications for N-7222: Flange Seat to Disk End Height: 0.219 INCHES NOMINAL IN; Flange Diameter: 2.031 INCHES NOMINAL IN; Thread Length: 0.380 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.