PartsTable TECHNICAL DATA SHEET

NSN 3020-01-551-5495Government record, cited

Gear, Worm3020-01-551-5495

NSN 3020-01-551-5495 · NIIN 015515495 · Part number SS206Q56R40

Emerson Power Transmission Corporation Div Ept · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 76474

Government record, cited

NSN 3020-01-551-5495 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-551-5495. Manufacturer of record part number: SS206Q56R40.

Also searched as 3020-01-551-5495 · 3020015515495 · NIIN 015515495 · 01-551-5495 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 76474 · SS206Q56R40 · 20858058 · AY-2786 · 190687 · 20858062 FIND NO 3

Nearby stock numbers ← 3020-01-551-5191 Sprocket Wheel Segment, Drive Uni · 3020-01-551-5665 Pulley, Groove →

Features

Gear,worm — FSC 3020
2 manufacturer part numbers on file
Manufacturer of record: Emerson Power Transmission Corporation Div Ept

Identification

NSN: 3020-01-551-5495
NIIN: 015515495
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: SS206Q56R40
Manufacturer: Emerson Power Transmission Corporation Div Ept

General Description

The Gear,worm, cataloged under National Stock Number 3020-01-551-5495, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Power Transmission Corporation Div Ept. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	3020-01-551-5495
Primary Part Number	SS206Q56R40
Item Name	Gear,worm
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Emerson Power Transmission Corporation Div Ept
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
AY-2786	Emerson Power Transmission Corporation Div Ept (USA)
SS206Q56R40 PRIMARY	Emerson Power Transmission Corporation Div Ept (USA)

Reference documents

Reference	Meaning
20858058	5/2 Secondary reference U.S. Government activity
190687	5/2 Secondary reference U.S. Government activity
20858062 FIND NO 3	5/2 Secondary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain

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

3020-00-000-0091

GEAR,SPUR

3020-00-001-0027

3020-00-001-0027 · Item name not on file

3020-00-001-0028

3020-00-001-0028 · Item name not on file

3020-00-001-0063

3020-00-001-0063 · Item name not on file

3020-00-001-0064

3020-00-001-0064 · Item name not on file

3020-00-001-0066

3020-00-001-0066 · Item name not on file

3020-00-001-0071

3020-00-001-0071 · Item name not on file

3020-00-001-0072

3020-00-001-0072 · Item name not on file

Frequently Asked Questions

What is NSN 3020-01-551-5495?

NSN 3020-01-551-5495 is a Gear,worm, manufactured by Emerson Power Transmission Corporation Div Ept, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-551-5495?

NSN 3020-01-551-5495 has 2 manufacturer part numbers on file: AY-2786 (Emerson Power Transmission Corporation Div Ept), SS206Q56R40 (Emerson Power Transmission Corporation Div Ept).

What are the specifications of SS206Q56R40?

Key specifications for SS206Q56R40: Part Name Assigned by Controlling Agency: GEAR, WORM; End Item Identification: REDUCER, WORM GEAR. 0 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-551-5495 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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