PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18891Pulley,groove

Electro Impulse Laboratory Inc Dba Electro Impulse Inc · NSN 3020-01-112-1928 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-112-1928 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-112-1928. Primary manufacturer part number: 18891.
Features
  • Pulley,groove — FSC 3020
  • Bore Type: TAPERED
  • V Groove Angle in Deg: 34.0
  • Style Designator: WEBBED OR SPOKED
  • Surface Treatment: PAINT
  • Standard V-Belt Section Designation for Which Designed: 3L AND 4L AND A
  • Material: IRON CAST OVERALL
  • Lightening Hole: NOT INCLUDED
Applications
  • Applications requiring Iron Cast Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-112-1928, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Electro Impulse Laboratory Inc Dba Electro Impulse 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-112-1928
Primary Part Number18891
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerElectro Impulse Laboratory Inc Dba Electro Impulse Inc
StatusACTIVE
Bore TypeTAPERED
V Groove Angle in Deg34.0
Style DesignatorWEBBED OR SPOKED
Surface TreatmentPAINT
Standard V-Belt Section Designation for Which Designed3L AND 4L AND A
MaterialIRON CAST OVERALL
Lightening HoleNOT INCLUDED
Securing MethodSPLIT-TAPERED BUSHING
Groove ShapeV
Bore FeatureINCLUDED
Unable to DecodeUNABLE TO DECODE
Integral Cooling VaneNOT INCLUDED
Unable to DecodeUNABLE TO DECODE
Securing LocationAA END
Web/spoke Relationship to Face CenterlineOFFSET
Distance From Outside Flange/rim to Hub End and Location0.500 INCHES NOMINAL AA END IN
Split Hub FeatureNOT INCLUDED
Hub Outside Diameter3.125 INCHES NOMINAL BOTH ENDS IN
Taper Bore Major Diameter1.625 INCHES NOMINAL IN
Taper Bore Minor Diameter1.562 INCHES NOMINAL IN
Groove Quantity2
Face Width1.375 INCHES NOMINAL IN
BearingsNOT INCLUDED
Counterbore FeatureNOT INCLUDED
Taper Major Diameter LocationAA END
Design FormWEBBED
Outside Diameter5.250 INCHES NOMINAL IN
Bore Length0.875 INCHES NOMINAL IN
Groove Width0.490 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-518-809733-1889-1 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
3120-00-585-9735 INTERCHANGEABLE
Bearing,sleeve
5310-00-914-063718891 INTERCHANGEABLE
Washer,flat
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5330-01-188-939118891 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
6220-01-384-216310483-003 INTERCHANGEABLE
Light Assembly,indicator
Korry Electronics Co
Cross-Reference Index
Part NumberManufacturer
18891 PRIMARY Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
Related Parts
5935-00-518-8097INTERCHANGEABLE
ADAPTER,CONNECTOR
33-1889-1
3120-00-585-9735INTERCHANGEABLE
BEARING,SLEEVE
5310-00-914-0637INTERCHANGEABLE
WASHER,FLAT
18891
5330-01-188-9391INTERCHANGEABLE
SEAL,PLAIN ENCASED
18891
6220-01-384-2163INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
10483-003

Frequently Asked Questions

What is NSN 3020-01-112-1928?

NSN 3020-01-112-1928 is a Pulley,groove, manufactured by Electro Impulse Laboratory Inc Dba Electro Impulse Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-112-1928?

NSN 3020-01-112-1928 has 1 cross-referenced part number: 18891 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc).

What NSN replaces 3020-01-112-1928?

There are 5 known substitutes for 3020-01-112-1928: 5935-00-518-8097, 3120-00-585-9735, 5310-00-914-0637 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18891?

Key specifications for 18891: Bore Type: TAPERED; V Groove Angle in Deg: 34.0; Style Designator: WEBBED OR SPOKED; Surface Treatment: PAINT. 30 total characteristics are documented in the Federal Logistics Information System.

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