PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GD87BGear,helical

Wisconsin Motors, Llc · NSN 3020-00-517-0618 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-517-0618 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-517-0618. Primary manufacturer part number: GD87B.
Features
  • Gear,helical — FSC 3020
  • Counterbore Nominal Diameter: 1.250 INCHES COUNTER BORE SECOND END IN
  • Style Designator: PROTRUDING HUB
  • Counterbore Nominal Depth: 0.052 INCHES COUNTER BORE SECOND END IN
  • Bore Nominal Diameter: 0.625 INCHES COUNTER BORE SECOND END IN
  • Teeth Quantity: 22
  • First Step Nominal Length: 0.145 INCHES FIRST END IN
  • Bore Style: W/COUNTERBORE COUNTER BORE SECOND END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1213 Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-517-0618, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-517-0618
Primary Part NumberGD87B
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusCANCELLED
Counterbore Nominal Diameter1.250 INCHES COUNTER BORE SECOND END IN
Style DesignatorPROTRUDING HUB
Counterbore Nominal Depth0.052 INCHES COUNTER BORE SECOND END IN
Bore Nominal Diameter0.625 INCHES COUNTER BORE SECOND END IN
Teeth Quantity22
First Step Nominal Length0.145 INCHES FIRST END IN
Bore StyleW/COUNTERBORE COUNTER BORE SECOND END
Body StylePLAIN, SOLID
Tooth FormSTANDARD
End Nominal Length0.031 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.176 INCHES FIRST END IN
Material Document and ClassificationAISI C1113 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Pitch Diameter2.0585 INCHES NOMINAL IN
Hub Style Designator1 STEP FIRST END
Helix Angle27.2667 DEGREES
Nominal Outside Diameter2.223 INCHES IN
Teeth TypeSINGLE HELIX
End Nominal Diameter1.000 INCHES FIRST END IN
Tooth DirectionRIGHT
Pressure Angle14.5000 DEGREES
MaterialSTEEL COMP 1213 OVERALL
First Step Nominal Diameter1.688 INCHES FIRST END IN
Face Nominal Width0.375 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-015-9138 INTERCHANGEABLE
Leg,case
3455-00-190-8407 INTERCHANGEABLE
Cutter Bit,tool Holder
6810-00-241-1159 INTERCHANGEABLE
Sodium Peroxide,anhydrous
5975-00-241-36572273 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5325-00-276-6091 INTERCHANGEABLE
Grommet,nonmetallic
9390-00-297-2001AS0422-1 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Naval Inventory Control Point
3120-00-352-5730 INTERCHANGEABLE
Bearing,sleeve
6625-00-585-38668616294 INTERCHANGEABLE
Resistance Standard
Us Army Aviation and Missile Command
5342-00-739-52212273 INTERCHANGEABLE
Mount
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
6135-00-880-1026221 INTERCHANGEABLE
Battery,nonrechargeable
American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
GD87B PRIMARY Wisconsin Motors, Llc (USA)
WPP57 Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA)
2273 Wico-Prestolite Co the Div of Eltra Corp (USA)
4221 D & J Parts Inc (USA)
D142 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
GD87B PRIMARY Fairbanks Morse, Llc (USA)
609028 Aqua-Chem Inc Cleaver-Brooks Div (USA)
D142 PRIMARY Fairbanks Morse, Llc (USA)
WPP194 Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA)
4221 L & L Boiler Maintenance Inc (USA)
GD87B Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
609028 Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA)
Related Parts
5340-00-015-9138INTERCHANGEABLE
LEG,CASE
3455-00-190-8407INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
6810-00-241-1159INTERCHANGEABLE
SODIUM PEROXIDE,ANHYDROUS
5975-00-241-3657INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2273
5325-00-276-6091INTERCHANGEABLE
GROMMET,NONMETALLIC
9390-00-297-2001INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
AS0422-1
3120-00-352-5730INTERCHANGEABLE
BEARING,SLEEVE
6625-00-585-3866INTERCHANGEABLE
RESISTANCE STANDARD
8616294
5342-00-739-5221INTERCHANGEABLE
MOUNT
2273
6135-00-880-1026INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
221
3010-00-893-4976INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
42-2-1-32
6515-01-061-6203INTERCHANGEABLE
BLOOD COLLECTING AND DISPENSING
1A8506

Frequently Asked Questions

What is NSN 3020-00-517-0618?

NSN 3020-00-517-0618 is a Gear,helical, manufactured by Wisconsin Motors, Llc, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-517-0618?

NSN 3020-00-517-0618 has 12 cross-referenced part numbers: GD87B (Wisconsin Motors, Llc), WPP57 (Siemens Water Technologies Corp. Div Wallace & Tiernan Products), 2273 (Wico-Prestolite Co the Div of Eltra Corp), 4221 (D & J Parts Inc), D142 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine) and 7 more.

What NSN replaces 3020-00-517-0618?

There are 12 known substitutes for 3020-00-517-0618: 5340-00-015-9138, 3455-00-190-8407, 6810-00-241-1159 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GD87B?

Key specifications for GD87B: Counterbore Nominal Diameter: 1.250 INCHES COUNTER BORE SECOND END IN; Style Designator: PROTRUDING HUB; Counterbore Nominal Depth: 0.052 INCHES COUNTER BORE SECOND END IN; Bore Nominal Diameter: 0.625 INCHES COUNTER BORE SECOND END IN. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-517-0618 still in active supply?

NSN 3020-00-517-0618 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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