Idler Gear Assembly, Barometric, a3020-01-437-4742

NSN 3020-01-437-4742 · NIIN 014374742

FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment

Government record, cited

Also searched as 3020-01-437-4742 · 3020014374742 · NIIN 014374742 · 01-437-4742 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain

Nearby stock numbers ← 3020-01-437-3947 Gear, Spur · 3020-01-437-4751 Drive Unit, Tractor Assembly, Hois →

Features

Idler Gear Assembly,barometric,a — FSC 3020

Identification

NSN: 3020-01-437-4742
NIIN: 014374742
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Idler Gear Assembly,barometric,a, cataloged under National Stock Number 3020-01-437-4742, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Idler Gear Assembly,barometric,a
FSC / FSG	3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)

Technical Specifications

Parameter	Value
NSN	3020-01-437-4742
Item Name	Idler Gear Assembly,barometric,a
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
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

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

Reference documents

Reference	Meaning
34597	3/2 Design control — primary reference U.S. Government activity

Frequently Asked Questions

What is NSN 3020-01-437-4742?

NSN 3020-01-437-4742 is a Idler Gear Assembly,barometric,a, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

Is NSN 3020-01-437-4742 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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