PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20487-1Pulley,groove

United States Department of the Navy Dba Naval Surface Warfare Center Panama City · NSN 3020-01-315-4106 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-315-4106 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-315-4106. Primary manufacturer part number: 20487-1.
Features
  • Pulley,groove — FSC 3020
  • Bearing Type: FLANGED
  • Split Hub Feature: NOT INCLUDED
  • Lightening Hole: NOT INCLUDED
  • Groove Depth: 2.615 INCHES NOMINAL IN
  • Bore Feature: INCLUDED
  • Web/spoke Relationship to Face Centerline: NOT OFFSET
  • Style Designator: WEBBED OR SPOKED
Applications
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-315-4106, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is United States Department of the Navy Dba Naval Surface Warfare Center Panama City. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN3020-01-315-4106
Primary Part Number20487-1
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerUnited States Department of the Navy Dba Naval Surface Warfare Center Panama City
StatusACTIVE
Bearing TypeFLANGED
Split Hub FeatureNOT INCLUDED
Lightening HoleNOT INCLUDED
Groove Depth2.615 INCHES NOMINAL IN
Bore FeatureINCLUDED
Web/spoke Relationship to Face CenterlineNOT OFFSET
Style DesignatorWEBBED OR SPOKED
Unable to DecodeUNABLE TO DECODE
Integral Cooling VaneNOT INCLUDED
Material Document and Classification300 SERIES ASSN STD SINGLE MATERIAL RESPONSE BODY
MaterialSTEEL CORROSION RESISTING BODY
Unable to DecodeUNABLE TO DECODE
Surface TreatmentPASSIVATE
Distance From Outside Flange/rim to Hub End and Location0.125 INCHES NOMINAL BOTH ENDS IN
Groove ShapeV
Bore TypeSTRAIGHT
Design FormWEBBED
Hub Outside Diameter1.750 INCHES NOMINAL BOTH ENDS IN
Groove Quantity1
Bearing Quantity2
Counterbore FeatureNOT INCLUDED
Face Width2.875 INCHES NOMINAL IN
BearingsINCLUDED
Groove Width1.000 INCHES NOMINAL IN
V Groove Angle in Deg45.0
Outside Diameter6.500 INCHES NOMINAL IN
Bore Diameter1.250 INCHES NOMINAL IN
Bore Length2.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
7690-00-083-575720487 INTERCHANGEABLE
Decal
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
5935-00-199-2635 INTERCHANGEABLE
Connector,plug,electrical
3020-00-421-4456204871 INTERCHANGEABLE
Gear,antibacklash,spur
Ge Aviation Systems Llc Dba Ge Aviation
3120-01-025-715020487 INTERCHANGEABLE
Bearing,sleeve
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
5331-01-058-402520487 INTERCHANGEABLE
O-Ring
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
5310-01-499-356920487 INTERCHANGEABLE
Nut,self-Locking,hexagon
Itw Gse Inc.
4820-01-522-060920487 INTERCHANGEABLE
Piston,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
20487-1 PRIMARY United States Department of the Navy Dba Naval Surface Warfare Center Panama City (USA)
20487 United States Department of the Navy Dba Naval Surface Warfare Center Panama City (USA)
Related Parts
7690-00-083-5757INTERCHANGEABLE
DECAL
20487
5935-00-199-2635INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3020-00-421-4456INTERCHANGEABLE
GEAR,ANTIBACKLASH,SPUR
204871
3120-01-025-7150INTERCHANGEABLE
BEARING,SLEEVE
20487
5331-01-058-4025INTERCHANGEABLE
O-RING
20487
5310-01-499-3569INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
20487
4820-01-522-0609INTERCHANGEABLE
PISTON,VALVE
20487

Frequently Asked Questions

What is NSN 3020-01-315-4106?

NSN 3020-01-315-4106 is a Pulley,groove, manufactured by United States Department of the Navy Dba Naval Surface Warfare Center Panama City, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-315-4106?

NSN 3020-01-315-4106 has 2 cross-referenced part numbers: 20487-1 (United States Department of the Navy Dba Naval Surface Warfare Center Panama City), 20487 (United States Department of the Navy Dba Naval Surface Warfare Center Panama City).

What NSN replaces 3020-01-315-4106?

There are 7 known substitutes for 3020-01-315-4106: 7690-00-083-5757, 5935-00-199-2635, 3020-00-421-4456 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20487-1?

Key specifications for 20487-1: Bearing Type: FLANGED; Split Hub Feature: NOT INCLUDED; Lightening Hole: NOT INCLUDED; Groove Depth: 2.615 INCHES NOMINAL IN. 28 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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