PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

88077Gear,helical

New Venture Gear Inc New Process Gear Div · NSN 3020-00-737-3398 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-737-3398 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-737-3398. Primary manufacturer part number: 88077.
Features
  • Gear,helical — FSC 3020
  • Body Style: WEBBED, OFFSET, SOLID
  • Nominal Overall Length: 1.197 INCHES IN
  • Tooth Form: STANDARD
  • Spline Pitch Diameter: 3.4280 INCHES NOMINAL BOTH ENDS IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.050 INCHES SECOND END IN
  • Pitch Diameter: 4.7143 INCHES NOMINAL IN
  • Material: STEEL OVERALL
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 3020-00-737-3398, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is New Venture Gear Inc New Process Gear Div. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-737-3398
Primary Part Number88077
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNew Venture Gear Inc New Process Gear Div
StatusACTIVE
Body StyleWEBBED, OFFSET, SOLID
Nominal Overall Length1.197 INCHES IN
Tooth FormSTANDARD
Spline Pitch Diameter3.4280 INCHES NOMINAL BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.050 INCHES SECOND END IN
Pitch Diameter4.7143 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Pressure Angle18.4950 DEGREES
Hub Nominal Diameter2.625 INCHES FIRST END IN
Counterbore Nominal Diameter2.8125 INCHES SECOND END IN
Nominal Outside Diameter4.9320 INCHES IN
Spline Quantity24 SECOND END
Style DesignatorPROTRUDING HUBS
Helix Angle23.2158 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.433 INCHES FIRST END IN
Teeth Quantity33
Face Nominal Width0.765 INCHES IN
Counterbore Nominal Depth0.182 INCHES SECOND END IN
Nominal Distance From Bore Center to Keyway Bottom1.970 INCHES BOTH ENDS IN
Teeth TypeSINGLE HELIX
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5355-00-075-990110105385-4 INTERCHANGEABLE
Knob
Us Army Aviation and Missile Command
6150-00-295-86647099769 INTERCHANGEABLE
Cable Assembly,power,electrical
U S Army Tank Automotive Command Amsta-Im-Mm
2920-00-307-66793398-3600 INTERCHANGEABLE
Wire Assembly,gener
Champion Aerospace Llc
4730-00-335-2578249IFHD-4-2 INTERCHANGEABLE
Elbow,pipe to Tube
Parker-Hannifin Corp Div Fluid System Connector Division
5305-00-370-0848125142 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
2520-00-734-96003398 INTERCHANGEABLE
Housing Gear Shift
Kenworth Truck Co a Div of Paccar Inc
8540-00-900-4891200 040 200 INTERCHANGEABLE
Tissue,facial
Precision Paper Converters, Llc
5136-01-020-374604351 INTERCHANGEABLE
Die Head,threading,self-Opening
Teledyne Landis/oster Teledyne Industries Inc Sub of Teledyne Inc
9925-01-451-231533-98 INTERCHANGEABLE
Neck Cross,triple Bar,eastern or
Defense Logistics Agency Troop Support Clothing and Textiles Directorate Attn Fqsa
Cross-Reference Index
Part NumberManufacturer
7373398 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
WT258-31 Perfection Clutch (USA)
1265996 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
88077 PRIMARY New Venture Gear Inc New Process Gear Div (USA)
3398 Napco International Llc Dba Napco International Inc (USA)
Related Parts
5355-00-075-9901INTERCHANGEABLE
KNOB
10105385-4
6150-00-295-8664INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
7099769
2920-00-307-6679INTERCHANGEABLE
WIRE ASSEMBLY,GENER
3398-3600
4730-00-335-2578INTERCHANGEABLE
ELBOW,PIPE TO TUBE
249IFHD-4-2
5305-00-370-0848INTERCHANGEABLE
SCREW,MACHINE
125142
2520-00-734-9600INTERCHANGEABLE
HOUSING GEAR SHIFT
3398
8540-00-900-4891INTERCHANGEABLE
TISSUE,FACIAL
200 040 200
5136-01-020-3746INTERCHANGEABLE
DIE HEAD,THREADING,SELF-OPENING
04351
9925-01-451-2315INTERCHANGEABLE
NECK CROSS,TRIPLE BAR,EASTERN OR
33-98

Frequently Asked Questions

What is NSN 3020-00-737-3398?

NSN 3020-00-737-3398 is a Gear,helical, manufactured by New Venture Gear Inc New Process Gear Div, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-737-3398?

NSN 3020-00-737-3398 has 5 cross-referenced part numbers: 7373398 (U S Army Tank Automotive Command Amsta-Im-Mm), WT258-31 (Perfection Clutch), 1265996 (Chrysler Realty Company Llc Dba Daimler Chrysler), 88077 (New Venture Gear Inc New Process Gear Div), 3398 (Napco International Llc Dba Napco International Inc).

What NSN replaces 3020-00-737-3398?

There are 9 known substitutes for 3020-00-737-3398: 5355-00-075-9901, 6150-00-295-8664, 2920-00-307-6679 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 88077?

Key specifications for 88077: Body Style: WEBBED, OFFSET, SOLID; Nominal Overall Length: 1.197 INCHES IN; Tooth Form: STANDARD; Spline Pitch Diameter: 3.4280 INCHES NOMINAL BOTH ENDS IN. 22 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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