Seat, Valve4820-01-421-2719

NSN 4820-01-421-2719 · NIIN 014212719 · Part number 5275F 4.00IN (AA)

The Walworth Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63686

Government record, cited

NSN 4820-01-421-2719 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-421-2719. Manufacturer of record part number: 5275F 4.00IN (AA).

Also searched as 4820-01-421-2719 · 4820014212719 · NIIN 014212719 · 01-421-2719 · FSC 4820 Valves, Nonpowered · CAGE 63686 · 5275F 4.00IN (AA) · WALWORTH 5275F 4.00IN

Nearby stock numbers ← 4820-01-421-2717 Valve, Globe · 4820-01-421-2720 Valve, Gate →

4820-01-421-2719 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: The Walworth Company

Identification

NSN: 4820-01-421-2719
NIIN: 014212719
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5275F 4.00IN (AA)
Manufacturer: The Walworth Company

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-421-2719, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. 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	4820-01-421-2719
Primary Part Number	5275F 4.00IN (AA)
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	The Walworth Company
Status	ACTIVE

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
WALWORTH 5275F 4.00IN	Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of (USA)
5275F 4.00IN (AA) PRIMARY	The Walworth 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 4820-01-421-2719?

NSN 4820-01-421-2719 is a Seat,valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-421-2719?

NSN 4820-01-421-2719 has 2 manufacturer part numbers on file: WALWORTH 5275F 4.00IN (Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of), 5275F 4.00IN (AA) (The Walworth Company).

What are the specifications of 5275F 4.00IN (AA)?

Key specifications for 5275F 4.00IN (AA): End Item Identification: VALVE GLB 4.00IN 150SI CAST STL FLG IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-421-2719 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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