PartsTable TECHNICAL DATA SHEET

NSN 4820-01-261-0391Government record, cited

Disk, Valve4820-01-261-0391

NSN 4820-01-261-0391 · NIIN 012610391 · Part number 741828

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 45934

Government record, cited

NSN 4820-01-261-0391 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-0391. Manufacturer of record part number: 741828.

Also searched as 4820-01-261-0391 · 4820012610391 · NIIN 012610391 · 01-261-0391 · FSC 4820 Valves, Nonpowered · CAGE 45934 · 741828

Nearby stock numbers ← 4820-01-261-0339 Body, Valve · 4820-01-261-0393 Diaphragm, Actuator Valve, Special →

4820-01-261-0391 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
3 manufacturer part numbers on file
Manufacturer of record: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

Identification

NSN: 4820-01-261-0391
NIIN: 012610391
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 741828
Manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-261-0391, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Disk,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Meggitt North Hollywood Inc (CAGE 79318); Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Alamo Aircraft, Ltd. (CAGE 55345)

Technical Specifications

Parameter	Value
NSN	4820-01-261-0391
Primary Part Number	741828
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	F

Cross-Reference Index

Part Number	Manufacturer
741828	Meggitt North Hollywood Inc (USA)
741828 PRIMARY	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
741828	Alamo Aircraft, Ltd. (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 4820-01-261-0391?

NSN 4820-01-261-0391 is a Disk,valve, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-261-0391?

NSN 4820-01-261-0391 has 3 manufacturer part numbers on file: 741828 (Meggitt North Hollywood Inc), 741828 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 741828 (Alamo Aircraft, Ltd.).

Is NSN 4820-01-261-0391 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.

What is the DEMIL code for NSN 4820-01-261-0391?

NSN 4820-01-261-0391 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.

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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