PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN221-1Pulley,groove

Aeronautical Standards Group Dept of Navy and Air Force · NSN 3020-00-528-0513 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-528-0513 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-528-0513. Primary manufacturer part number: AN221-1.
Features
  • Pulley,groove — FSC 3020
  • Groove Radius: 0.130 INCHES NOMINAL IN
  • Groove Width: 0.360 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • Distance From Outside Flange/rim to Hub End and Location: 0.059 INCHES NOMINAL AA END AND 0.059 INCHES NOMINAL BB END IN
  • Bearing Type: BALL
  • Split Hub Feature: NOT INCLUDED
  • Bearing Quantity: 1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-528-0513, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-528-0513
Primary Part NumberAN221-1
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusCANCELLED
Groove Radius0.130 INCHES NOMINAL IN
Groove Width0.360 INCHES NOMINAL IN
Style DesignatorPLAIN
Distance From Outside Flange/rim to Hub End and Location0.059 INCHES NOMINAL AA END AND 0.059 INCHES NOMINAL BB END IN
Bearing TypeBALL
Split Hub FeatureNOT INCLUDED
Bearing Quantity1
Hub Outside Diameter0.515 INCHES NOMINAL BOTH ENDS IN
Unable to DecodeUNABLE TO DECODE
Integral Cooling VaneNOT INCLUDED
Lightening HoleNOT INCLUDED
Bore FeatureINCLUDED
Face Width0.507 INCHES NOMINAL IN
BearingsINCLUDED
Groove Quantity1
Unable to DecodeUNABLE TO DECODE
Bore TypeSTRAIGHT
Counterbore FeatureNOT INCLUDED
Design FormPLAIN
Groove ShapeU
Groove Depth0.312 INCHES NOMINAL IN
Bore Length0.625 INCHES NOMINAL IN
Bore Diameter0.3145 INCHES NOMINAL IN
Outside Diameter2.630 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5133-00-435-3258 INTERCHANGEABLE
Drill,twist
5306-00-550-9148 INTERCHANGEABLE
Bolt,clevis
3020-00-672-4426 INTERCHANGEABLE
Gear,spur
3010-01-109-9792202211 INTERCHANGEABLE
Insert,flexible Coupling
Admiral Filter Company Llc
5307-01-330-4290 INTERCHANGEABLE
Stud,plain
Cross-Reference Index
Part NumberManufacturer
AN221-1 Aeronautical Standards Group Dept of Navy and Air Force (USA)
MS20221-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
20221-1 Witco Chemical Corp Allied Kelite Products Div (USA)
R30F10 Ralmark Co (USA)
20221-1 Atco Pulley Corp
Related Parts
5133-00-435-3258INTERCHANGEABLE
DRILL,TWIST
5306-00-550-9148INTERCHANGEABLE
BOLT,CLEVIS
3020-00-672-4426INTERCHANGEABLE
GEAR,SPUR
3010-01-109-9792INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
202211
5307-01-330-4290INTERCHANGEABLE
STUD,PLAIN

Frequently Asked Questions

What is NSN 3020-00-528-0513?

NSN 3020-00-528-0513 is a Pulley,groove, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-528-0513?

NSN 3020-00-528-0513 has 5 cross-referenced part numbers: AN221-1 (Aeronautical Standards Group Dept of Navy and Air Force), MS20221-1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 20221-1 (Witco Chemical Corp Allied Kelite Products Div), R30F10 (Ralmark Co), 20221-1 (Atco Pulley Corp).

What NSN replaces 3020-00-528-0513?

There are 5 known substitutes for 3020-00-528-0513: 5133-00-435-3258, 5306-00-550-9148, 3020-00-672-4426 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN221-1?

Key specifications for AN221-1: Groove Radius: 0.130 INCHES NOMINAL IN; Overall Length: 0.625 INCHES NOMINAL IN; Groove Width: 0.360 INCHES NOMINAL IN; Style Designator: PLAIN. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-528-0513 still in active supply?

NSN 3020-00-528-0513 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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