The Tailpiece,valve, cataloged under National Stock Number 4810-01-666-7573, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Tailpiece,valve |
| FSC / FSG | 4810 — Valves, Powered (FSG 48) |
| Manufacturers | Metrex Valve Corp. Dba Metrex Valve Corp (CAGE 21013) |
| Parameter | Value |
|---|---|
| NSN | 4810-01-666-7573 |
| Primary Part Number | 46M-421B |
| Item Name | Tailpiece,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 46M-421B PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| EAOM-513-NF2-3W REV B ITEM 29 | C/1 Advisory reference — outside the item-of-supply concept Metrex Valve Corp. Dba Metrex Valve Corp |
NSN 4810-01-666-7573 is a Tailpiece,valve, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-666-7573 has 1 manufacturer part number on file: 46M-421B (Metrex Valve Corp. Dba Metrex Valve Corp).
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.