PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7890Pulley,variable Pit

Alter Harry Co the Div of T E C · NSN 3020-01-131-3992 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-131-3992 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-131-3992. Primary manufacturer part number: 7890.
Features
  • Pulley,variable Pit — FSC 3020
  • 1 verified cross-reference
  • Primary manufacturer: Alter Harry Co the Div of T E C
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pulley,variable Pit, cataloged under National Stock Number 3020-01-131-3992, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Alter Harry Co the Div of T E C. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePulley,variable Pit
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersAlter Harry Co the Div of T E C (CAGE 70334)
Technical Specifications
ParameterValue
NSN3020-01-131-3992
Primary Part Number7890
Item NamePulley,variable Pit
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAlter Harry Co the Div of T E C
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6510-00-201-4000NON6028H INTERCHANGEABLE
Cotton,purified
Medline Industries, Lp
2010-00-395-1716 INTERCHANGEABLE
Housing,gear
5310-00-431-16827890 INTERCHANGEABLE
Washer,flat
Leroi International Inc Dba Compair Leroi
9540-00-451-9157 INTERCHANGEABLE
Angle,structural
5930-00-781-1932 INTERCHANGEABLE
Switch Assembly
5960-01-075-26939747588 INTERCHANGEABLE
Electron Tube
Us Army Aviation and Missile Command
4240-01-380-49497000029584 INTERCHANGEABLE
Plug
3m Company
Cross-Reference Index
Part NumberManufacturer
7890 PRIMARY Alter Harry Co the Div of T E C (USA)
Related Parts
6510-00-201-4000INTERCHANGEABLE
COTTON,PURIFIED
NON6028H
2010-00-395-1716INTERCHANGEABLE
HOUSING,GEAR
5310-00-431-1682INTERCHANGEABLE
WASHER,FLAT
7890
9540-00-451-9157INTERCHANGEABLE
ANGLE,STRUCTURAL
5930-00-781-1932INTERCHANGEABLE
SWITCH ASSEMBLY
5960-01-075-2693INTERCHANGEABLE
ELECTRON TUBE
9747588
4240-01-380-4949INTERCHANGEABLE
PLUG
7000029584

Frequently Asked Questions

What is NSN 3020-01-131-3992?

NSN 3020-01-131-3992 is a Pulley,variable Pit, manufactured by Alter Harry Co the Div of T E C, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-131-3992?

NSN 3020-01-131-3992 has 1 cross-referenced part number: 7890 (Alter Harry Co the Div of T E C).

What NSN replaces 3020-01-131-3992?

There are 7 known substitutes for 3020-01-131-3992: 6510-00-201-4000, 2010-00-395-1716, 5310-00-431-1682 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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