PartsTable TECHNICAL DATA SHEET

NSN 3020-01-073-9890Government record, cited

Pulley Assembly, Tra3020-01-073-9890

NSN 3020-01-073-9890 · NIIN 010739890 · Part number 42277-327

Hornet Acquisitionco, Llc Dba Onboard Systems · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 3HRL4

Government record, cited

NSN 3020-01-073-9890 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-073-9890. Manufacturer of record part number: 42277-327.

Also searched as 3020-01-073-9890 · 3020010739890 · NIIN 010739890 · 01-073-9890 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 3HRL4 · 42277-327 · 42277E327

Nearby stock numbers ← 3020-01-073-9767 Gear, Spur · 3020-01-074-0061 →

Features

Pulley Assembly,tra — FSC 3020
1 manufacturer part number on file
Manufacturer of record: Hornet Acquisitionco, Llc Dba Onboard Systems

Identification

NSN: 3020-01-073-9890
NIIN: 010739890
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 42277-327
Manufacturer: Hornet Acquisitionco, Llc Dba Onboard Systems

General Description

The Pulley Assembly,tra, cataloged under National Stock Number 3020-01-073-9890, 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 Hornet Acquisitionco, Llc Dba Onboard Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Pulley Assembly,tra
FSC / FSG	3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)
Manufacturers	Hornet Acquisitionco, Llc Dba Onboard Systems (CAGE 3HRL4)

Technical Specifications

Parameter	Value
NSN	3020-01-073-9890
Primary Part Number	42277-327
Item Name	Pulley Assembly,tra
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Hornet Acquisitionco, Llc Dba Onboard Systems
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
42277-327 PRIMARY	Hornet Acquisitionco, Llc Dba Onboard Systems (USA)

Reference documents

Reference	Meaning
42277-327	5/9 Secondary reference Goodrich Corporation Dba Trw Lucas Aerospace
42277E327	5/9 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 3020-01-073-9890?

NSN 3020-01-073-9890 is a Pulley Assembly,tra, manufactured by Hornet Acquisitionco, Llc Dba Onboard Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-073-9890?

NSN 3020-01-073-9890 has 1 manufacturer part number on file: 42277-327 (Hornet Acquisitionco, Llc Dba Onboard Systems).

Is NSN 3020-01-073-9890 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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