PartsTable TECHNICAL DATA SHEET
NSN 3020-01-198-0885Government record, cited

Gear Operating3020-01-198-0885

NSN 3020-01-198-0885 · NIIN 011980885 · Part number 77643-74X3
Derbyshire Machine & Tool Co · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 71905
Government record, cited
NSN 3020-01-198-0885 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-198-0885. Manufacturer of record part number: 77643-74X3.
Also searched as  3020-01-198-0885 · 3020011980885 · NIIN 011980885 · 01-198-0885 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 71905 · 77643-74X3 · 2143876
Nearby stock numbers  ·
Features
  • Gear Operating — FSC 3020
  • General Characteristics Item Description: GENERAL DYNAMIC MODEL BHD VENTILATION VALVE
  • 1 manufacturer part number on file
  • Manufacturer of record: Derbyshire Machine & Tool Co
Identification
  • NSN: 3020-01-198-0885
  • NIIN: 011980885
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 77643-74X3
  • Manufacturer: Derbyshire Machine & Tool Co
General Description

The Gear Operating, cataloged under National Stock Number 3020-01-198-0885, 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 Derbyshire Machine & Tool Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.

Technical Specifications
ParameterValue
NSN3020-01-198-0885
Primary Part Number77643-74X3
Item NameGear Operating
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerDerbyshire Machine & Tool Co
StatusACTIVE
General Characteristics Item DescriptionGENERAL DYNAMIC MODEL BHD VENTILATION VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
77643-74X3 Derbyshire Machine & Tool Co (USA)
Reference documents
ReferenceMeaning
2143876 D/9 Drawing number reference only
U.S. Government activity
77643-74X3 3/2 Design control — primary 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 3020-01-198-0885?

NSN 3020-01-198-0885 is a Gear Operating, manufactured by Derbyshire Machine & Tool Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-198-0885?

NSN 3020-01-198-0885 has 1 manufacturer part number on file: 77643-74X3 (Derbyshire Machine & Tool Co).

What are the specifications of 77643-74X3?

Key specifications for 77643-74X3: General Characteristics Item Description: GENERAL DYNAMIC MODEL BHD VENTILATION VALVE. 1 specification is documented in the U.S. Government catalog.

Is NSN 3020-01-198-0885 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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