PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124441Pulley,groove

Telemechanics Inc · NSN 3020-00-996-3635 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-996-3635 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-996-3635. Primary manufacturer part number: 124441.
Features
  • Pulley,groove — FSC 3020
  • Bore Length: 0.625 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • Groove Width: 0.078 INCHES NOMINAL IN
  • Bore Diameter: 0.250 INCHES NOMINAL IN
  • Unable to Decode: UNABLE TO DECODE
  • Material: STEEL OVERALL
  • Securing Method: DRILLED HOLE
Applications
  • Applications requiring Steel Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-996-3635, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-996-3635
Primary Part Number124441
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Bore Length0.625 INCHES NOMINAL IN
Style DesignatorPLAIN
Groove Width0.078 INCHES NOMINAL IN
Bore Diameter0.250 INCHES NOMINAL IN
Unable to DecodeUNABLE TO DECODE
MaterialSTEEL OVERALL
Securing MethodDRILLED HOLE
Lightening HoleNOT INCLUDED
Protruding Hub CharacteristicPLAIN
Unable to DecodeUNABLE TO DECODE
Distance From Outside Flange/rim to Hub End and Location0.438 INCHES NOMINAL AA END IN
Bore FeatureINCLUDED
Groove ShapeV
Split Hub FeatureNOT INCLUDED
Securing LocationAA END
Integral Cooling VaneNOT INCLUDED
Hub Outside Diameter0.500 INCHES NOMINAL AA END IN
Face Width0.188 INCHES NOMINAL IN
Hole LocationCENTERED 0.234 INCH FROM END OF HUB IN
Bore TypeSTRAIGHT
BearingsNOT INCLUDED
Counterbore FeatureNOT INCLUDED
Groove Quantity1
Design FormPLAIN
Securing Hole Quantity1
Outside Diameter2.000 INCHES NOMINAL IN
Drilled Hole Diameter0.125 INCHES NOMINAL IN
Groove Depth0.188 INCHES NOMINAL IN
Pitch Diameter1.813 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-00-057-1404J0642J-001 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-350-0624124441 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Ametek, Inc. Div Aerospace & Defense
6695-01-160-6690124.441 INTERCHANGEABLE
Indicator,engine Oi
Rogerson Kratos
Cross-Reference Index
Part NumberManufacturer
124441 PRIMARY Telemechanics Inc (USA)
Related Parts
6685-00-057-1404INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J0642J-001
6685-00-350-0624INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
124441
6695-01-160-6690INTERCHANGEABLE
INDICATOR,ENGINE OI
124.441

Frequently Asked Questions

What is NSN 3020-00-996-3635?

NSN 3020-00-996-3635 is a Pulley,groove, manufactured by Telemechanics Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-996-3635?

NSN 3020-00-996-3635 has 1 cross-referenced part number: 124441 (Telemechanics Inc).

What NSN replaces 3020-00-996-3635?

There are 3 known substitutes for 3020-00-996-3635: 6685-00-057-1404, 6685-00-350-0624, 6695-01-160-6690. Verify interchangeability with system specifications before substitution.

What are the specifications of 124441?

Key specifications for 124441: Bore Length: 0.625 INCHES NOMINAL IN; Style Designator: PLAIN; Groove Width: 0.078 INCHES NOMINAL IN; Bore Diameter: 0.250 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

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