Seat, Valve4820-01-440-2547

NSN 4820-01-440-2547 · NIIN 014402547 · Part number 5202-2 PN25 8IN.

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

Government record, cited

NSN 4820-01-440-2547 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-440-2547. Manufacturer of record part number: 5202-2 PN25 8IN..

Also searched as 4820-01-440-2547 · 4820014402547 · NIIN 014402547 · 01-440-2547 · FSC 4820 Valves, Nonpowered · CAGE 63686 · 5202-2 PN25 8IN.

Nearby stock numbers ← 4820-01-440-2542 Valve, Flow Control · 4820-01-440-2550 Retainer, Nut, Valve →

4820-01-440-2547 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL SEAT
Seating Surface Shape: FLAT
2 manufacturer part numbers on file
Manufacturer of record: The Walworth Company

Identification

NSN: 4820-01-440-2547
NIIN: 014402547
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5202-2 PN25 8IN.
Manufacturer: The Walworth Company

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-440-2547, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. Government technical data includes 2 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	4820-01-440-2547
Primary Part Number	5202-2 PN25 8IN.
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	The Walworth Company
Status	ACTIVE
Material	STEEL SEAT
Seating Surface Shape	FLAT

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
5202-2 PN25 8IN. PRIMARY	The Walworth Company (USA)
5202-2 PN25 8IN.	Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of (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 4820-01-440-2547?

NSN 4820-01-440-2547 is a Seat,valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-440-2547?

NSN 4820-01-440-2547 has 2 manufacturer part numbers on file: 5202-2 PN25 8IN. (The Walworth Company), 5202-2 PN25 8IN. (Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of).

What are the specifications of 5202-2 PN25 8IN.?

Key specifications for 5202-2 PN25 8IN.: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL SEAT; Seating Surface Shape: FLAT. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-440-2547 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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