PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12596Gear,spur

Grimes Aerospace Company · NSN 3020-00-894-7591 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-894-7591 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-894-7591. Primary manufacturer part number: 12596.
Features
  • Gear,spur — FSC 3020
  • Hub Nominal Diameter: 0.500 INCHES FIRST END IN
  • Nominal Outside Diameter: 0.6406 INCHES IN
  • Face Nominal Width: 0.094 INCHES IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.188 INCHES FIRST END IN
  • Tooth Form: STANDARD
  • Pressure Angle: 20.0000 DEGREES
  • Material: COPPER ALLOY OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-894-7591, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Grimes Aerospace Company. Government technical data includes 14 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-894-7591
Primary Part Number12596
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
Hub Nominal Diameter0.500 INCHES FIRST END IN
Nominal Outside Diameter0.6406 INCHES IN
Face Nominal Width0.094 INCHES IN
Nominal Distance Between Body Face and Protruding Hub End0.188 INCHES FIRST END IN
Tooth FormSTANDARD
Pressure Angle20.0000 DEGREES
MaterialCOPPER ALLOY OVERALL
Teeth Quantity39
Hub Style DesignatorPINNED FIRST END
Style DesignatorPROTRUDING HUB
Pitch Diameter0.6094 INCHES NOMINAL IN
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5945-00-024-0460 INTERCHANGEABLE
Relay,reed
4820-00-036-109012596 INTERCHANGEABLE
Seat,valve
Schneider Electric Systems Usa Inc
5998-01-141-171410317 INTERCHANGEABLE
Circuit Card Assembly
L & R Manufacturing Company
5315-01-320-34251259600 INTERCHANGEABLE
Pin,straight,headless
Alfa Laval Inc
Cross-Reference Index
Part NumberManufacturer
12596 PRIMARY Grimes Aerospace Company (USA)
Related Parts
5945-00-024-0460INTERCHANGEABLE
RELAY,REED
4820-00-036-1090INTERCHANGEABLE
SEAT,VALVE
12596
5998-01-141-1714INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
10317
5315-01-320-3425INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
1259600

Frequently Asked Questions

What is NSN 3020-00-894-7591?

NSN 3020-00-894-7591 is a Gear,spur, manufactured by Grimes Aerospace Company, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-894-7591?

NSN 3020-00-894-7591 has 1 cross-referenced part number: 12596 (Grimes Aerospace Company).

What NSN replaces 3020-00-894-7591?

There are 4 known substitutes for 3020-00-894-7591: 5945-00-024-0460, 4820-00-036-1090, 5998-01-141-1714 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12596?

Key specifications for 12596: Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Nominal Outside Diameter: 0.6406 INCHES IN; Face Nominal Width: 0.094 INCHES IN; Nominal Distance Between Body Face and Protruding Hub End: 0.188 INCHES FIRST END IN. 14 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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