Valve, Air Venting, Steam4520-00-222-3560

NSN 4520-00-222-3560 · NIIN 002223560

FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal

Government record, cited

Also searched as 4520-00-222-3560 · 4520002223560 · NIIN 002223560 · 00-222-3560 · FSC 4520 Space and Water Heating Equipment · MIL-V-18499 · F-V-2906

Nearby stock numbers ← 4520-00-222-3559 · 4520-00-222-3561 →

Features

Valve,air Venting,steam — FSC 4520
Valve Air Return Prevention: NOT REQUIRED
Valve Water Pressure Position: OPEN
Operating Pressure: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Valve Shape: STRAIGHT
Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
Surface Treatment: NICKEL
Valve Type: QUICK AIR VENT

Identification

NSN: 4520-00-222-3560
NIIN: 002223560
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal

General Description

The Valve,air Venting,steam, cataloged under National Stock Number 4520-00-222-3560, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4520-00-222-3560
Item Name	Valve,air Venting,steam
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Status	ACTIVE
Valve Air Return Prevention	NOT REQUIRED
Valve Water Pressure Position	OPEN
Operating Pressure	15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Valve Shape	STRAIGHT
Nondefinitive Spec/std Data	1 TYPE AND 1 CLASS
Surface Treatment	NICKEL
Valve Type	QUICK AIR VENT
Material	COPPER ALLOY

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
MIL-V-18499	5/9 Secondary reference U.S. Government activity
F-V-2906	4/1 Identification reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4520 — Space and Water Heating Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4520-00-000-0098

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-000-0099

4520-00-000-0099 · Item name not on file

4520-00-001-1240

4520-00-001-1240 · Item name not on file

4520-00-001-3518

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-3519

HEATING ELEMENT,ELECTRICAL,IMMER

4520-00-001-6052

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-6298

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-7726

HEATER,DUCT TYPE,PORTABLE

Frequently Asked Questions

What is NSN 4520-00-222-3560?

NSN 4520-00-222-3560 is a Valve,air Venting,steam, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What are the specifications of 4520-00-222-3560?

Key specifications for 4520-00-222-3560: Valve Air Return Prevention: NOT REQUIRED; Valve Water Pressure Position: OPEN; Operating Pressure: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Valve Shape: STRAIGHT. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4520-00-222-3560 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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