Disk, Valve4820-01-333-0261

NSN 4820-01-333-0261 · NIIN 013330261 · Part number 1-304-33-188

Core Industries Inc. Dba Mueller Steam Specialty · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 76588

Government record, cited

NSN 4820-01-333-0261 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-333-0261. Manufacturer of record part number: 1-304-33-188.

Also searched as 4820-01-333-0261 · 4820013330261 · NIIN 013330261 · 01-333-0261 · FSC 4820 Valves, Nonpowered · CAGE 76588 · 1-304-33-188 · D-04188 ITEM 3 · D-04188 PART 304-33-188 · 304-33-188 · D-04188

Nearby stock numbers ← 4820-01-333-0260 Disk, Valve · 4820-01-333-0262 Disk, Valve →

4820-01-333-0261 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Core Industries Inc. Dba Mueller Steam Specialty

Identification

NSN: 4820-01-333-0261
NIIN: 013330261
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1-304-33-188
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-333-0261, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Disk,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Core Industries Inc. Dba Mueller Steam Specialty (CAGE 76588)

Technical Specifications

Parameter	Value
NSN	4820-01-333-0261
Primary Part Number	1-304-33-188
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Core Industries Inc. Dba Mueller Steam Specialty
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
1-304-33-188 PRIMARY	Core Industries Inc. Dba Mueller Steam Specialty (USA)

Reference documents

Reference	Meaning
D-04188 ITEM 3	5/9 Secondary reference Daniel Industries Inc
D-04188 PART 304-33-188	3/9 Design control — primary reference Daniel Industries Inc
304-33-188	5/9 Secondary reference Daniel Industries Inc
D-04188	D/9 Drawing number reference only Daniel Industries Inc

Frequently Asked Questions

What is NSN 4820-01-333-0261?

NSN 4820-01-333-0261 is a Disk,valve, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-333-0261?

NSN 4820-01-333-0261 has 1 manufacturer part number on file: 1-304-33-188 (Core Industries Inc. Dba Mueller Steam Specialty).

Is NSN 4820-01-333-0261 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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