PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7873Pulley,variable Pit

Alter Harry Co the Div of T E C · NSN 3020-01-131-3989 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-131-3989 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-131-3989. Primary manufacturer part number: 7873.
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 3020-01-131-3989, 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. 6 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
NSN3020-01-131-3989
Primary Part Number7873
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 6
5331-00-250-1209210-750-70 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5930-00-302-1047 INTERCHANGEABLE
Button
5998-00-427-79957873 INTERCHANGEABLE
Circuit Card Assembly
Data Device Corp Dba Beta Transformer Technology
4730-01-238-3908 INTERCHANGEABLE
Adapter,straight,pipe to Hose
6105-01-238-4306 INTERCHANGEABLE
Motor,tube Punching
5340-01-682-27727873 INTERCHANGEABLE
Mount,resilient,utility
H.a. King Co., Inc.
Cross-Reference Index
Part NumberManufacturer
7873 PRIMARY Alter Harry Co the Div of T E C (USA)
Related Parts
5331-00-250-1209INTERCHANGEABLE
O-RING
210-750-70
5930-00-302-1047INTERCHANGEABLE
BUTTON
5998-00-427-7995INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
7873
4730-01-238-3908INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
6105-01-238-4306INTERCHANGEABLE
MOTOR,TUBE PUNCHING
5340-01-682-2772INTERCHANGEABLE
MOUNT,RESILIENT,UTILITY
7873

Frequently Asked Questions

What is NSN 3020-01-131-3989?

NSN 3020-01-131-3989 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 3020-01-131-3989?

NSN 3020-01-131-3989 has 1 cross-referenced part number: 7873 (Alter Harry Co the Div of T E C).

What NSN replaces 3020-01-131-3989?

There are 6 known substitutes for 3020-01-131-3989: 5331-00-250-1209, 5930-00-302-1047, 5998-00-427-7995 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com