PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N1599Gear,spur

Caterpillar Inc Div Caterpillar Defense · NSN 3020-00-405-6256 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-405-6256 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-405-6256. Primary manufacturer part number: 2N1599.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM TEETH
  • Bore Nominal Diameter: 14.540 INCHES BOTH ENDS IN
  • Style Designator: HUBLESS
  • Tooth Form: STUB
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Pressure Angle: 20.0000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1060 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-405-6256, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-405-6256
Primary Part Number2N1599
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Body StylePLAIN, SOLID
Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM TEETH
Bore Nominal Diameter14.540 INCHES BOTH ENDS IN
Style DesignatorHUBLESS
Tooth FormSTUB
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Pressure Angle20.0000 DEGREES
Bore StylePLAIN BOTH ENDS
Pitch Diameter15.7500 INCHES NOMINAL IN
Nominal Outside Diameter15.930 INCHES IN
MaterialSTEEL COMP 1060 OVERALL
Face Nominal Width0.600 INCHES IN
Teeth Quantity126
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-702-8032 INTERCHANGEABLE
Semiconductor Device,thyristor
Cross-Reference Index
Part NumberManufacturer
2N1599 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5961-00-702-8032INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR

Frequently Asked Questions

What is NSN 3020-00-405-6256?

NSN 3020-00-405-6256 is a Gear,spur, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-405-6256?

NSN 3020-00-405-6256 has 1 cross-referenced part number: 2N1599 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 3020-00-405-6256?

There is 1 known substitute for 3020-00-405-6256: 5961-00-702-8032. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N1599?

Key specifications for 2N1599: Body Style: PLAIN, SOLID; Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM TEETH; Bore Nominal Diameter: 14.540 INCHES BOTH ENDS IN; Style Designator: HUBLESS. 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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