Valve, Vacuum Breaking4820-01-119-0540

NSN 4820-01-119-0540 · NIIN 011190540

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-119-0540 · 4820011190540 · NIIN 011190540 · 01-119-0540 · FSC 4820 Valves, Nonpowered · P-262T · 4820PL1261760

Nearby stock numbers ← 4820-01-119-0519 Valve, Safety Relief · 4820-01-119-0584 Seat, Valve →

4820-01-119-0540 — Valves, Nonpowered

Features

Valve,vacuum Breaking — FSC 4820
Flow Control Device: DIAPHRAGM
First End Thread Direction: RIGHT-HAND
Body Style: SINGLE CONNECTION, STRAIGHT FLOW
First End Thread Class: 3A A
First End Style Designator: PLAIN
End Connection Quantity: 1
First End Connection Type: THREADED EXTERNAL TUBE

Identification

NSN: 4820-01-119-0540
NIIN: 011190540
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,vacuum Breaking, cataloged under National Stock Number 4820-01-119-0540, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-119-0540
Item Name	Valve,vacuum Breaking
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DIAPHRAGM
First End Thread Direction	RIGHT-HAND
Body Style	SINGLE CONNECTION, STRAIGHT FLOW
First End Thread Class	3A A
First End Style Designator	PLAIN
End Connection Quantity	1
First End Connection Type	THREADED EXTERNAL TUBE
Temp Adjustability	ADJUSTABLE
First End Outside Diameter Tube Accommodated	0.375 INCHES NOMINAL IN
Material	STEEL CORROSION RESISTING BODY
Media for Which Designed	AIR AND CARBON DIOXIDE AND HELIUM AND HYDROGEN

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
P-262T	3/2 Design control — primary reference U.S. Government activity
4820PL1261760	6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index

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 4820-01-119-0540?

NSN 4820-01-119-0540 is a Valve,vacuum Breaking, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-119-0540?

Key specifications for 4820-01-119-0540: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Body Style: SINGLE CONNECTION, STRAIGHT FLOW; First End Thread Class: 3A A. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-119-0540 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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