PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40631Gear,helical

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 3020-00-270-8364 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-270-8364 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-270-8364. Primary manufacturer part number: 40631.
Features
  • Gear,helical — FSC 3020
  • Tooth Form: STANDARD
  • Teeth Type: SINGLE HELIX
  • Material: STEEL OVERALL
  • Tooth Direction: LEFT
  • Body Style: PLAIN, SOLID
  • Pressure Angle: 14.5000 DEGREES
  • Face Nominal Width: 0.500 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-270-8364, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-270-8364
Primary Part Number40631
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Tooth FormSTANDARD
Teeth TypeSINGLE HELIX
MaterialSTEEL OVERALL
Tooth DirectionLEFT
Body StylePLAIN, SOLID
Pressure Angle14.5000 DEGREES
Face Nominal Width0.500 INCHES IN
Pitch Diameter1.2500 INCHES NOMINAL IN
Bore StyleW/ KEYWAY BOTH ENDS
Style DesignatorHUBLESS
Nominal Outside Diameter1.3750 INCHES IN
Teeth Quantity20
Helix Angle45.0000 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-045-8338 INTERCHANGEABLE
Screw,machine
5935-00-058-49021024429 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Rms - Mitchel Field
5120-00-293-3480 INTERCHANGEABLE
Pliers
4820-00-383-4667 INTERCHANGEABLE
Valve,check
5950-00-930-4702SM-C-583189 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6680-01-098-968040631 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
3110-01-191-680440631 INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
6515-01-594-0871040 631 INTERCHANGEABLE
Terminal,special Purpose
Midmark Corporation Dba Midmark Corp
Cross-Reference Index
Part NumberManufacturer
40631 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5305-00-045-8338INTERCHANGEABLE
SCREW,MACHINE
5935-00-058-4902INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1024429
5120-00-293-3480INTERCHANGEABLE
PLIERS
4820-00-383-4667INTERCHANGEABLE
VALVE,CHECK
5950-00-930-4702INTERCHANGEABLE
REACTOR
SM-C-583189
6680-01-098-9680INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
40631
3110-01-191-6804INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
40631
6515-01-594-0871INTERCHANGEABLE
TERMINAL,SPECIAL PURPOSE
040 631

Frequently Asked Questions

What is NSN 3020-00-270-8364?

NSN 3020-00-270-8364 is a Gear,helical, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-270-8364?

NSN 3020-00-270-8364 has 1 cross-referenced part number: 40631 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 3020-00-270-8364?

There are 8 known substitutes for 3020-00-270-8364: 5305-00-045-8338, 5935-00-058-4902, 5120-00-293-3480 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40631?

Key specifications for 40631: Tooth Form: STANDARD; Teeth Type: SINGLE HELIX; Material: STEEL OVERALL; Tooth Direction: LEFT. 13 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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