Regulator, Thermostatic Temperatu4820-01-519-4309

NSN 4820-01-519-4309 · NIIN 015194309 · Part number TM-50E-ERF

Leonard Valve Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 35764

Government record, cited

NSN 4820-01-519-4309 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-519-4309. Manufacturer of record part number: TM-50E-ERF.

Also searched as 4820-01-519-4309 · 4820015194309 · NIIN 015194309 · 01-519-4309 · FSC 4820 Valves, Nonpowered · CAGE 35764 · TM-50E-ERF

Nearby stock numbers ← 4820-01-519-4182 Parts Kit, Safety Relief Valve · 4820-01-519-4505 Valve, Gate →

4820-01-519-4309 — Valves, Nonpowered

Features

Regulator,thermostatic Temperatu — FSC 4820
Thermostat Type: BIMETALLIC
Usage Design: THERMOSTATIC FLOW CONTROL ROUGH BRONZE
1 manufacturer part number on file
Manufacturer of record: Leonard Valve Company

Identification

NSN: 4820-01-519-4309
NIIN: 015194309
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: TM-50E-ERF
Manufacturer: Leonard Valve Company

General Description

The Regulator,thermostatic Temperatu, cataloged under National Stock Number 4820-01-519-4309, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leonard Valve Company. Government technical data includes 2 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	4820-01-519-4309
Primary Part Number	TM-50E-ERF
Item Name	Regulator,thermostatic Temperatu
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Leonard Valve Company
Status	ACTIVE
Thermostat Type	BIMETALLIC
Usage Design	THERMOSTATIC FLOW CONTROL ROUGH BRONZE

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
TM-50E-ERF PRIMARY	Leonard Valve Company (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 4820-01-519-4309?

NSN 4820-01-519-4309 is a Regulator,thermostatic Temperatu, manufactured by Leonard Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-519-4309?

NSN 4820-01-519-4309 has 1 manufacturer part number on file: TM-50E-ERF (Leonard Valve Company).

What are the specifications of TM-50E-ERF?

Key specifications for TM-50E-ERF: Thermostat Type: BIMETALLIC; Usage Design: THERMOSTATIC FLOW CONTROL ROUGH BRONZE. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-519-4309 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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