PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS20219A5Pulley,groove

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3020-00-727-0741 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-727-0741 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-727-0741. Primary manufacturer part number: MS20219A5.
Features
  • Pulley,groove — FSC 3020
  • Bore Type: STRAIGHT
  • Groove Depth: 0.156 INCHES NOMINAL IN
  • Groove Shape: U
  • Material Document and Classification: QQ-A-225/6, T351 FED SPEC SINGLE MATERIAL RESPONSE RIM
  • Material: STEEL OVERALL
  • Material: ALUMINUM ALLOY 2024 RIM
  • Unable to Decode: UNABLE TO DECODE
Applications
  • Applications requiring Steel Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-727-0741, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, 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
NSN3020-00-727-0741
Primary Part NumberMS20219A5
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Bore TypeSTRAIGHT
Groove Depth0.156 INCHES NOMINAL IN
Groove ShapeU
Material Document and ClassificationQQ-A-225/6, T351 FED SPEC SINGLE MATERIAL RESPONSE RIM
MaterialSTEEL OVERALL
MaterialALUMINUM ALLOY 2024 RIM
Unable to DecodeUNABLE TO DECODE
MaterialSTEEL HUB
Unable to DecodeUNABLE TO DECODE
Split Hub FeatureNOT INCLUDED
Protruding Hub CharacteristicPLAIN
Integral Cooling VaneNOT INCLUDED
Distance From Outside Flange/rim to Hub End and Location0.064 INCHES NOMINAL BOTH ENDS IN
Bearing TypeBALL
Lightening HoleNOT INCLUDED
Bore FeatureINCLUDED
Style DesignatorPLAIN
Surface TreatmentANODIZE
Groove Quantity1
Counterbore FeatureNOT INCLUDED
Design FormPLAIN
Hub Outside Diameter0.769 INCHES NOMINAL BOTH ENDS IN
Face Width0.310 INCHES NOMINAL IN
BearingsINCLUDED
Bearing Quantity1
Bore Length0.438 INCHES NOMINAL IN
Groove Radius0.050 INCHES NOMINAL IN
Outside Diameter2.625 INCHES NOMINAL IN
Groove Width0.150 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3020-00-277-1119 INTERCHANGEABLE
Pulley,groove
3020-00-277-1120 INTERCHANGEABLE
Pulley,groove
3020-00-277-1121 INTERCHANGEABLE
Pulley,groove
3020-00-287-7919 INTERCHANGEABLE
Pulley,groove
3020-00-287-9661 INTERCHANGEABLE
Pulley,groove
3020-00-288-3411 INTERCHANGEABLE
Pulley,groove
3020-00-542-0530 INTERCHANGEABLE
Pulley,groove
Cross-Reference Index
Part NumberManufacturer
MS20219A5 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS20219A5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20219A5 Arvan, Inc. Dba Aerospace Division (USA)
MIL-DTL-7034/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20219A5 Ralmark Co (USA)
20219A5 Atco Pulley Corp
AN219A5 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
3020-00-277-1119INTERCHANGEABLE
PULLEY,GROOVE
3020-00-277-1120INTERCHANGEABLE
PULLEY,GROOVE
3020-00-277-1121INTERCHANGEABLE
PULLEY,GROOVE
3020-00-287-7919INTERCHANGEABLE
PULLEY,GROOVE
3020-00-287-9661INTERCHANGEABLE
PULLEY,GROOVE
3020-00-288-3411INTERCHANGEABLE
PULLEY,GROOVE
3020-00-542-0530INTERCHANGEABLE
PULLEY,GROOVE

Frequently Asked Questions

What is NSN 3020-00-727-0741?

NSN 3020-00-727-0741 is a Pulley,groove, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-727-0741?

NSN 3020-00-727-0741 has 7 cross-referenced part numbers: MS20219A5 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS20219A5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20219A5 (Arvan, Inc. Dba Aerospace Division), MIL-DTL-7034/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20219A5 (Ralmark Co) and 2 more.

What NSN replaces 3020-00-727-0741?

There are 7 known substitutes for 3020-00-727-0741: 3020-00-277-1119, 3020-00-277-1120, 3020-00-277-1121 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS20219A5?

Key specifications for MS20219A5: Bore Type: STRAIGHT; Groove Depth: 0.156 INCHES NOMINAL IN; Overall Length: 0.438 INCHES NOMINAL IN; Groove Shape: U. 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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