PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70400-00512-101Pulley,groove

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · NSN 3020-01-093-5017 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-093-5017 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-093-5017. Primary manufacturer part number: 70400-00512-101.
Features
  • Pulley,groove — FSC 3020
  • Outside Diameter: 4.255 INCHES NOMINAL IN
  • Split Hub Feature: NOT INCLUDED
  • Bearing Type: SLEEVE
  • Distance From Outside Flange/rim to Hub End and Location: 0.013 INCHES NOMINAL BOTH ENDS IN
  • Integral Cooling Vane: NOT INCLUDED
  • Unable to Decode: UNABLE TO DECODE
  • Lightening Hole: NOT INCLUDED
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-093-5017, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN3020-01-093-5017
Primary Part Number70400-00512-101
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerSikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
StatusACTIVE
Outside Diameter4.255 INCHES NOMINAL IN
Split Hub FeatureNOT INCLUDED
Bearing TypeSLEEVE
Distance From Outside Flange/rim to Hub End and Location0.013 INCHES NOMINAL BOTH ENDS IN
Integral Cooling VaneNOT INCLUDED
Unable to DecodeUNABLE TO DECODE
Lightening HoleNOT INCLUDED
MaterialALUMINUM ALLOY OVERALL
Unable to DecodeUNABLE TO DECODE
Groove ShapeU
Bore FeatureINCLUDED
Hub Outside Diameter0.515 INCHES NOMINAL BOTH ENDS IN
Design FormPLAIN
Face Width0.350 INCHES NOMINAL IN
Groove Quantity1
Counterbore FeatureNOT INCLUDED
Bearing Quantity1
Bore TypeSTRAIGHT
BearingsINCLUDED
Groove Width0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
Groove Depth0.500 INCHES NOMINAL IN
Bore Length0.595 INCHES NOMINAL IN
Bore Diameter0.313 INCHES NOMINAL IN
Style DesignatorPLAIN
Groove Radius0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-958-797481981 INTERCHANGEABLE
Setscrew
Hydro-Aire Aerospace Corp
3020-01-095-45518-1982 INTERCHANGEABLE
Pulley,groove
Ralmark Co
3020-01-219-87048-2232 INTERCHANGEABLE
Pulley,groove
Ralmark Co
Cross-Reference Index
Part NumberManufacturer
70400-00512 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
70400-00512-101 PRIMARY Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
8-1981 Ralmark Co (USA)
70400-00512-101 Ralmark Co (USA)
Related Parts
5305-00-958-7974INTERCHANGEABLE
SETSCREW
81981
3020-01-095-4551INTERCHANGEABLE
PULLEY,GROOVE
8-1982
3020-01-219-8704INTERCHANGEABLE
PULLEY,GROOVE
8-2232

Frequently Asked Questions

What is NSN 3020-01-093-5017?

NSN 3020-01-093-5017 is a Pulley,groove, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-093-5017?

NSN 3020-01-093-5017 has 4 cross-referenced part numbers: 70400-00512 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 70400-00512-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 8-1981 (Ralmark Co), 70400-00512-101 (Ralmark Co).

What NSN replaces 3020-01-093-5017?

There are 3 known substitutes for 3020-01-093-5017: 5305-00-958-7974, 3020-01-095-4551, 3020-01-219-8704. Verify interchangeability with system specifications before substitution.

What are the specifications of 70400-00512-101?

Key specifications for 70400-00512-101: Outside Diameter: 4.255 INCHES NOMINAL IN; Split Hub Feature: NOT INCLUDED; Bearing Type: SLEEVE; Distance From Outside Flange/rim to Hub End and Location: 0.013 INCHES NOMINAL BOTH ENDS IN. 26 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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