PartsTable TECHNICAL DATA SHEET

NSN 3020-01-357-7169Government record, cited

Pulley, Groove3020-01-357-7169

NSN 3020-01-357-7169 · NIIN 013577169 · Part number 4991-C

Lebus International, Inc. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 17798

Government record, cited

NSN 3020-01-357-7169 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-357-7169. Manufacturer of record part number: 4991-C.

Also searched as 3020-01-357-7169 · 3020013577169 · NIIN 013577169 · 01-357-7169 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 17798 · 4991-C · 4990-D ITEM 24

Nearby stock numbers ← 3020-01-357-7140 · 3020-01-357-7170 Pulley, Groove →

Features

Pulley,groove — FSC 3020
Groove Shape: U
Outside Diameter: 32.500 INCHES NOMINAL IN
Pitch Diameter: 30.0000 INCHES NOMINAL IN
Groove Quantity: 1
2 manufacturer part numbers on file
Manufacturer of record: Lebus International, Inc.

Identification

NSN: 3020-01-357-7169
NIIN: 013577169
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 4991-C
Manufacturer: Lebus International, Inc.

General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-357-7169, 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 Lebus International, Inc.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3020-01-357-7169
Primary Part Number	4991-C
Item Name	Pulley,groove
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Lebus International, Inc.
Status	ACTIVE
Groove Shape	U
Outside Diameter	32.500 INCHES NOMINAL IN
Pitch Diameter	30.0000 INCHES NOMINAL IN
Groove Quantity	1

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
4990-D ITEM 24	Lebus International, Inc. (USA)
4991-C PRIMARY	Lebus International, Inc. (USA)

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 3020-01-357-7169?

NSN 3020-01-357-7169 is a Pulley,groove, manufactured by Lebus International, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-357-7169?

NSN 3020-01-357-7169 has 2 manufacturer part numbers on file: 4990-D ITEM 24 (Lebus International, Inc.), 4991-C (Lebus International, Inc.).

What are the specifications of 4991-C?

Key specifications for 4991-C: Groove Shape: U; Outside Diameter: 32.500 INCHES NOMINAL IN; Pitch Diameter: 30.0000 INCHES NOMINAL IN; Groove Quantity: 1. 4 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-357-7169 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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