PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A72381Gear,spur

Ballantyne of Omaha Inc. · NSN 3020-00-099-8672 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-099-8672 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-099-8672. Primary manufacturer part number: A72381.
Features
  • Gear,spur — FSC 3020
  • Attachment Method: MOUNTING HOLE
  • Material: STEEL OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Pressure Angle: 20.0000 DEGREES
  • Bore Style: PLAIN BOTH ENDS
  • Style Designator: PROTRUDING HUB
  • Hub Style Designator: PLAIN FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-099-8672, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ballantyne of Omaha Inc.. Government technical data includes 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-099-8672
Primary Part NumberA72381
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBallantyne of Omaha Inc.
StatusACTIVE
Attachment MethodMOUNTING HOLE
MaterialSTEEL OVERALL
Surface TreatmentPASSIVATE OVERALL
Pressure Angle20.0000 DEGREES
Bore StylePLAIN BOTH ENDS
Style DesignatorPROTRUDING HUB
Hub Style DesignatorPLAIN FIRST END
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4520-00-112-020824 8W INTERCHANGEABLE
Register,air
Hart & Cooley, Inc.
5330-01-297-6286 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
A72381 PRIMARY Ballantyne of Omaha Inc. (USA)
72381 Arma Div Ambac Industries Inc
Related Parts
4520-00-112-0208INTERCHANGEABLE
REGISTER,AIR
24 8W
5330-01-297-6286INTERCHANGEABLE
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 3020-00-099-8672?

NSN 3020-00-099-8672 is a Gear,spur, manufactured by Ballantyne of Omaha Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-099-8672?

NSN 3020-00-099-8672 has 2 cross-referenced part numbers: A72381 (Ballantyne of Omaha Inc.), 72381 (Arma Div Ambac Industries Inc).

What NSN replaces 3020-00-099-8672?

There are 2 known substitutes for 3020-00-099-8672: 4520-00-112-0208, 5330-01-297-6286. Verify interchangeability with system specifications before substitution.

What are the specifications of A72381?

Key specifications for A72381: Attachment Method: MOUNTING HOLE; Material: STEEL OVERALL; Surface Treatment: PASSIVATE OVERALL; Pressure Angle: 20.0000 DEGREES. 8 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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