Valve, Restrictor Check4820-01-450-3556

NSN 4820-01-450-3556 · NIIN 014503556 · Part number V42E-0002-000

Aquamatic Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04816

Government record, cited

NSN 4820-01-450-3556 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-450-3556. Manufacturer of record part number: V42E-0002-000.

Also searched as 4820-01-450-3556 · 4820014503556 · NIIN 014503556 · 01-450-3556 · FSC 4820 Valves, Nonpowered · CAGE 04816 · V42E-0002-000 · 9310C5019-001

Nearby stock numbers ← 4820-01-450-3555 Valve, Gate · 4820-01-450-3559 Stem, Fluid Valve →

4820-01-450-3556 — Valves, Nonpowered

Features

Valve,restrictor Check — FSC 4820
Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
Connection Type: THREADED INTERNAL PIPE ALL ENDS
Style Designator: STRAIGHT THRU
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 1.500 INCHES ALL ENDS IN
Thread Series Designator: NPT ALL ENDS
Valve Operation Method: AUTOMATIC

Identification

NSN: 4820-01-450-3556
NIIN: 014503556
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: V42E-0002-000
Manufacturer: Aquamatic Inc

General Description

The Valve,restrictor Check, cataloged under National Stock Number 4820-01-450-3556, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aquamatic Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-450-3556
Primary Part Number	V42E-0002-000
Item Name	Valve,restrictor Check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Aquamatic Inc
Status	ACTIVE
Connection Style	PLAIN, OPTIONAL END (PIPE) ALL ENDS
Connection Type	THREADED INTERNAL PIPE ALL ENDS
Style Designator	STRAIGHT THRU
Thread Direction	RIGHT-HAND ALL ENDS
Nominal Thread Size	1.500 INCHES ALL ENDS IN
Thread Series Designator	NPT ALL ENDS
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
V42E-0002-000 PRIMARY	Aquamatic Inc (USA)
9310C5019-001	The Entwistle Company Llc (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 4820-01-450-3556?

NSN 4820-01-450-3556 is a Valve,restrictor Check, manufactured by Aquamatic Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-450-3556?

NSN 4820-01-450-3556 has 2 manufacturer part numbers on file: V42E-0002-000 (Aquamatic Inc), 9310C5019-001 (The Entwistle Company Llc).

What are the specifications of V42E-0002-000?

Key specifications for V42E-0002-000: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Thread Direction: RIGHT-HAND ALL ENDS. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-450-3556 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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