Valve, Regulating, Fluid Pressure4820-01-203-5447

NSN 4820-01-203-5447 · NIIN 012035447

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-203-5447 · 4820012035447 · NIIN 012035447 · 01-203-5447 · FSC 4820 Valves, Nonpowered · 5001K93 · 5001K43 · 5001K73 · 5001M33

Nearby stock numbers ← 4820-01-203-5446 · 4820-01-203-5448 Valve, Regulating, Fluid Pressure →

4820-01-203-5447 — Valves, Nonpowered

Features

Valve,regulating,fluid Pressure — FSC 4820
Flow Control Device: PISTON, FREE TYPE
First End Thread Direction: RIGHT-HAND
Body Style: ANGLE
Regulation Type: AUTOMATIC SINGLE STAGE
First End Style Designator: PLAIN
First End Connection Type: THREADED INTERNAL PIPE
Media for Which Designed: AIR

Identification

NSN: 4820-01-203-5447
NIIN: 012035447
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-203-5447, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-203-5447
Item Name	Valve,regulating,fluid Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	PISTON, FREE TYPE
First End Thread Direction	RIGHT-HAND
Body Style	ANGLE
Regulation Type	AUTOMATIC SINGLE STAGE
First End Style Designator	PLAIN
First End Connection Type	THREADED INTERNAL PIPE
Media for Which Designed	AIR
Thread Size and Series/type Designator	0.500-14 NPT FIRST END
Filter	INCLUDED

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
5001K93	5/9 Secondary reference Mcmaster-Carr Supply Co
5001K43	5/9 Secondary reference Mcmaster-Carr Supply Co
5001K73	5/9 Secondary reference Mcmaster-Carr Supply Co
5001M33	3/9 Design control — primary reference Mcmaster-Carr Supply Co

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 4820-01-203-5447?

NSN 4820-01-203-5447 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-203-5447?

Key specifications for 4820-01-203-5447: Flow Control Device: PISTON, FREE TYPE; First End Thread Direction: RIGHT-HAND; Body Style: ANGLE; Regulation Type: AUTOMATIC SINGLE STAGE. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-203-5447 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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