PartsTable TECHNICAL DATA SHEET

NSN 4820-01-187-4764Government record, cited

Stem, Fluid Valve4820-01-187-4764

NSN 4820-01-187-4764 · NIIN 011874764 · Part number 10266-8-1-1

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

Government record, cited

NSN 4820-01-187-4764 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-187-4764. Manufacturer of record part number: 10266-8-1-1.

Also searched as 4820-01-187-4764 · 4820011874764 · NIIN 011874764 · 01-187-4764 · FSC 4820 Valves, Nonpowered · CAGE 63686 · 10266-8-1-1

Nearby stock numbers ← 4820-01-187-4763 · 4820-01-187-4771 Disk, Valve →

4820-01-187-4764 — Valves, Nonpowered

Features

Stem,fluid Valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: The Walworth Company

Identification

NSN: 4820-01-187-4764
NIIN: 011874764
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 10266-8-1-1
Manufacturer: The Walworth Company

General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-187-4764, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Stem,fluid Valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	The Walworth Company (CAGE 63686)

Technical Specifications

Parameter	Value
NSN	4820-01-187-4764
Primary Part Number	10266-8-1-1
Item Name	Stem,fluid 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)

Cross-Reference Index

Part Number	Manufacturer
10266-8-1-1 PRIMARY	The Walworth Company (USA)

Reference documents

Reference	Meaning
10266-8-1-1	C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity

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 4820-01-187-4764?

NSN 4820-01-187-4764 is a Stem,fluid Valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-187-4764?

NSN 4820-01-187-4764 has 1 manufacturer part number on file: 10266-8-1-1 (The Walworth Company).

Is NSN 4820-01-187-4764 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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