PartsTable TECHNICAL DATA SHEET

NSN 4520-01-665-7331Government record, cited

Valve, Air Venting, Steam4520-01-665-7331

NSN 4520-01-665-7331 · NIIN 016657331 · Part number 4680083G01

Mendenhall Technical Services, Inc. · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 0MMF3

Government record, cited

NSN 4520-01-665-7331 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-665-7331. Manufacturer of record part number: 4680083G01.

Also searched as 4520-01-665-7331 · 4520016657331 · NIIN 016657331 · 01-665-7331 · FSC 4520 Space and Water Heating Equipment · CAGE 0MMF3 · 4680083G01

Nearby stock numbers ← 4520-01-665-7183 Valve, Air Venting, Steam · 4520-01-665-7983 Heating Element, Electrical, Nonim →

Features

Valve,air Venting,steam — FSC 4520
1 manufacturer part number on file
Manufacturer of record: Mendenhall Technical Services, Inc.

Identification

NSN: 4520-01-665-7331
NIIN: 016657331
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 4680083G01
Manufacturer: Mendenhall Technical Services, Inc.

General Description

The Valve,air Venting,steam, cataloged under National Stock Number 4520-01-665-7331, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Mendenhall Technical Services, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,air Venting,steam
FSC / FSG	4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers	Mendenhall Technical Services, Inc. (CAGE 0MMF3)

Technical Specifications

Parameter	Value
NSN	4520-01-665-7331
Primary Part Number	4680083G01
Item Name	Valve,air Venting,steam
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Mendenhall Technical Services, Inc.
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
4680083G01 PRIMARY	Mendenhall Technical Services, Inc. (USA)

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 4520-01-665-7331?

NSN 4520-01-665-7331 is a Valve,air Venting,steam, manufactured by Mendenhall Technical Services, Inc., classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-665-7331?

NSN 4520-01-665-7331 has 1 manufacturer part number on file: 4680083G01 (Mendenhall Technical Services, Inc.).

Is NSN 4520-01-665-7331 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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