Stem, Fluid Valve4820-01-423-1990

NSN 4820-01-423-1990 · NIIN 014231990

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-423-1990 · 4820014231990 · NIIN 014231990 · 01-423-1990 · FSC 4820 Valves, Nonpowered · B-147-A 2.50IN IT9 · B-147-A 2.50IN IT9 · B-147-A 2.50IN IT9

Nearby stock numbers ← 4820-01-423-1988 Cap, Valve · 4820-01-423-1992 Parts Kit, Globe Valve →

4820-01-423-1990 — Valves, Nonpowered

Features

Stem,fluid Valve — FSC 4820
Valve Type for Which Designed: ANGLE
Stem Actuating End Type: THREADED EXTERNALLY
Valve Model Number for Which Designed: B-147-A
Valve Size for Which Designed: 2.500 INCHES IN
Material: COPPER ALLOY AND MANGANESE

Identification

NSN: 4820-01-423-1990
NIIN: 014231990
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-423-1990, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-423-1990
Item Name	Stem,fluid Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Valve Type for Which Designed	ANGLE
Stem Actuating End Type	THREADED EXTERNALLY
Valve Model Number for Which Designed	B-147-A
Valve Size for Which Designed	2.500 INCHES IN
Material	COPPER ALLOY AND MANGANESE

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
B-147-A 2.50IN IT9	3/9 Design control — primary reference Pima Valve, Llc
B-147-A 2.50IN IT9	C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc.
B-147-A 2.50IN IT9	5/9 Secondary reference Key Industries Inc Dba Liberty Equipment and 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 4820-01-423-1990?

NSN 4820-01-423-1990 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-423-1990?

Key specifications for 4820-01-423-1990: Valve Type for Which Designed: ANGLE; Stem Actuating End Type: THREADED EXTERNALLY; Valve Model Number for Which Designed: B-147-A; Valve Size for Which Designed: 2.500 INCHES IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-423-1990 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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