Seat, Valve4820-01-420-8563

NSN 4820-01-420-8563 · NIIN 014208563 · Part number 46M-155-1A

Metrex Valve Corp. Dba Metrex Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 21013

Government record, cited

NSN 4820-01-420-8563 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-420-8563. Manufacturer of record part number: 46M-155-1A.

Also searched as 4820-01-420-8563 · 4820014208563 · NIIN 014208563 · 01-420-8563 · FSC 4820 Valves, Nonpowered · CAGE 21013 · 46M-155-1A

Nearby stock numbers ← 4820-01-420-8561 Disk, Valve · 4820-01-420-8564 Stem, Fluid Valve →

4820-01-420-8563 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Metrex Valve Corp. Dba Metrex Valve Corp

Identification

NSN: 4820-01-420-8563
NIIN: 014208563
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 46M-155-1A
Manufacturer: Metrex Valve Corp. Dba Metrex Valve Corp

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-420-8563, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Metrex Valve Corp. Dba Metrex Valve Corp (CAGE 21013)

Technical Specifications

Parameter	Value
NSN	4820-01-420-8563
Primary Part Number	46M-155-1A
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Metrex Valve Corp. Dba Metrex Valve Corp
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
46M-155-1A PRIMARY	Metrex Valve Corp. Dba Metrex Valve Corp (USA)

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-420-8563?

NSN 4820-01-420-8563 is a Seat,valve, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-420-8563?

NSN 4820-01-420-8563 has 1 manufacturer part number on file: 46M-155-1A (Metrex Valve Corp. Dba Metrex Valve Corp).

Is NSN 4820-01-420-8563 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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