PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

71974Gear,worm

Telemechanics Inc · NSN 3020-00-237-8633 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-237-8633 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-237-8633. Primary manufacturer part number: 71974.
Features
  • Gear,worm — FSC 3020
  • Nominal Distance Between Body Face and Protruding Hub End: 0.750 INCHES FIRST END IN
  • Hub Style Designator: PLAIN FIRST END
  • Pressure Angle: 30.0000 DEGREES
  • Pitch Diameter: 1.0860 INCHES NOMINAL IN
  • Thread Form Direction: RIGHT-HAND
  • Style Designator: PROTRUDING HUB
  • Bore Nominal Diameter: 0.376 INCHES BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,worm, cataloged under National Stock Number 3020-00-237-8633, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-237-8633
Primary Part Number71974
Item NameGear,worm
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Nominal Distance Between Body Face and Protruding Hub End0.750 INCHES FIRST END IN
Hub Style DesignatorPLAIN FIRST END
Pressure Angle30.0000 DEGREES
Pitch Diameter1.0860 INCHES NOMINAL IN
Thread Form DirectionRIGHT-HAND
Style DesignatorPROTRUDING HUB
Bore Nominal Diameter0.376 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Hub Nominal Diameter0.688 INCHES FIRST END IN
Nominal Outside Diameter1.177 INCHES IN
Thread Form Quantity7
Face Nominal Width0.750 INCHES IN
Face TypeSTRAIGHT
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5940-00-787-266271974 INTERCHANGEABLE
Ferrule
Textron Lycoming Inc Williamsport Plant
4820-00-980-2377239615 INTERCHANGEABLE
Diaphragm,valve,flat
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5365-01-052-560871974 INTERCHANGEABLE
Spacer,ring
L3harris Technologies, Inc Div Space & Airborne Systems
5310-01-298-769022702 INTERCHANGEABLE
Nut,plain,hexagon
Paccar Winch Inc Dba Paccar Winch Division
Cross-Reference Index
Part NumberManufacturer
71974 PRIMARY Telemechanics Inc (USA)
71974 At and T Corp (USA)
Related Parts
5940-00-787-2662INTERCHANGEABLE
FERRULE
71974
4820-00-980-2377INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
239615
5365-01-052-5608INTERCHANGEABLE
SPACER,RING
71974
5310-01-298-7690INTERCHANGEABLE
NUT,PLAIN,HEXAGON
22702

Frequently Asked Questions

What is NSN 3020-00-237-8633?

NSN 3020-00-237-8633 is a Gear,worm, manufactured by Telemechanics Inc, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-237-8633?

NSN 3020-00-237-8633 has 2 cross-referenced part numbers: 71974 (Telemechanics Inc), 71974 (At and T Corp).

What NSN replaces 3020-00-237-8633?

There are 4 known substitutes for 3020-00-237-8633: 5940-00-787-2662, 4820-00-980-2377, 5365-01-052-5608 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 71974?

Key specifications for 71974: Nominal Distance Between Body Face and Protruding Hub End: 0.750 INCHES FIRST END IN; Hub Style Designator: PLAIN FIRST END; Pressure Angle: 30.0000 DEGREES; Pitch Diameter: 1.0860 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-237-8633 still in active supply?

NSN 3020-00-237-8633 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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