Valve, Regulating, Temperature4820-01-433-4346

NSN 4820-01-433-4346 · NIIN 014334346 · Part number M903P-200LR-FL2-3W

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

Government record, cited

NSN 4820-01-433-4346 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-433-4346. Manufacturer of record part number: M903P-200LR-FL2-3W.

Also searched as 4820-01-433-4346 · 4820014334346 · NIIN 014334346 · 01-433-4346 · FSC 4820 Valves, Nonpowered · CAGE 21013 · M903P-200LR-FL2-3W

Nearby stock numbers ← 4820-01-433-3914 Valve, Globe · 4820-01-433-4347 Valve, Regulating, Temperature →

4820-01-433-4346 — Valves, Nonpowered

Features

Valve,regulating,temperature — FSC 4820
Flow Control Device: DIAPHRAGM
Body Style: STRAIGHT THRU
First End Flange Outside Diameter: 6.000 INCHES NOMINAL IN
First End Style Designator: PLAIN
End Connection Quantity: 2
Capillary Tube Length: 56.000 INCHES NOMINAL IN
First End Connection Type: PLAIN FACE FLANGE

Identification

NSN: 4820-01-433-4346
NIIN: 014334346
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: M903P-200LR-FL2-3W
Manufacturer: Metrex Valve Corp. Dba Metrex Valve Corp

General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-433-4346, 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 10 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.

Technical Specifications

Parameter	Value
NSN	4820-01-433-4346
Primary Part Number	M903P-200LR-FL2-3W
Item Name	Valve,regulating,temperature
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Metrex Valve Corp. Dba Metrex Valve Corp
Status	ACTIVE
Flow Control Device	DIAPHRAGM
Body Style	STRAIGHT THRU
First End Flange Outside Diameter	6.000 INCHES NOMINAL IN
First End Style Designator	PLAIN
End Connection Quantity	2
Capillary Tube Length	56.000 INCHES NOMINAL IN
First End Connection Type	PLAIN FACE FLANGE
First End Flange Shape Style	ROUND W/ BOLT HOLES
Thermostatic Element	LIQUID IMMERSION TYPE
Material	COPPER ALLOY BODY

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
M903P-200LR-FL2-3W 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 4820-01-433-4346?

NSN 4820-01-433-4346 is a Valve,regulating,temperature, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-433-4346?

NSN 4820-01-433-4346 has 1 manufacturer part number on file: M903P-200LR-FL2-3W (Metrex Valve Corp. Dba Metrex Valve Corp).

What are the specifications of M903P-200LR-FL2-3W?

Key specifications for M903P-200LR-FL2-3W: Flow Control Device: DIAPHRAGM; Body Style: STRAIGHT THRU; First End Flange Outside Diameter: 6.000 INCHES NOMINAL IN; First End Style Designator: PLAIN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-433-4346 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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