PartsTable TECHNICAL DATA SHEET

NSN 4820-01-334-1959Government record, cited

Valve, Safety Relief4820-01-334-1959

NSN 4820-01-334-1959 · NIIN 013341959 · Part number 352250043077

Thales Nederland · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE H0203

Government record, cited

NSN 4820-01-334-1959 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-334-1959. Manufacturer of record part number: 352250043077.

Also searched as 4820-01-334-1959 · 4820013341959 · NIIN 013341959 · 01-334-1959 · FSC 4820 Valves, Nonpowered · CAGE H0203 · 352250043077 · 559T1-3M-4NOMINAL

Nearby stock numbers ← 4820-01-334-1958 Valve, Angle · 4820-01-334-1960 Valve, Butterfly →

4820-01-334-1959 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
Flow Control Device: POPPET
Material: STEEL COMP 316 OVERALL
Valve Operation Method: AUTOMATIC
1 manufacturer part number on file
Manufacturer of record: Thales Nederland

Identification

NSN: 4820-01-334-1959
NIIN: 013341959
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 352250043077
Manufacturer: Thales Nederland

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-334-1959, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thales Nederland. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-334-1959
Primary Part Number	352250043077
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Thales Nederland
Status	ACTIVE
Flow Control Device	POPPET
Material	STEEL COMP 316 OVERALL
Valve Operation Method	AUTOMATIC

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
352250043077	Thales Nederland (NLD)

Reference documents

Reference	Meaning
559T1-3M-4NOMINAL	3/2 Design control — primary reference U.S. Government activity

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 4820-01-334-1959?

NSN 4820-01-334-1959 is a Valve,safety Relief, manufactured by Thales Nederland, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-334-1959?

NSN 4820-01-334-1959 has 1 manufacturer part number on file: 352250043077 (Thales Nederland).

What are the specifications of 352250043077?

Key specifications for 352250043077: Flow Control Device: POPPET; Material: STEEL COMP 316 OVERALL; Valve Operation Method: AUTOMATIC. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-334-1959 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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