PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B206-272-1Gear,spur

Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp · NSN 3020-00-337-1250 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-337-1250 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-337-1250. Primary manufacturer part number: B206-272-1.
Features
  • Gear,spur — FSC 3020
  • Material: STEEL OVERALL
  • Bore Nominal Diameter: 0.1865 INCHES COUNTERBORE FIRST END IN
  • Style Designator: PROTRUDING HUB
  • Hub Nominal Diameter: 0.5770 INCHES FIRST END IN
  • Teeth Quantity: 16
  • Pitch Diameter: 0.5000 INCHES NOMINAL IN
  • Bore Style: PLAIN COUNTERBORE 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 3020-00-337-1250, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-337-1250
Primary Part NumberB206-272-1
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
StatusACTIVE
MaterialSTEEL OVERALL
Bore Nominal Diameter0.1865 INCHES COUNTERBORE FIRST END IN
Style DesignatorPROTRUDING HUB
Hub Nominal Diameter0.5770 INCHES FIRST END IN
Teeth Quantity16
Pitch Diameter0.5000 INCHES NOMINAL IN
Bore StylePLAIN COUNTERBORE FIRST END
Pressure Angle14.5000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.5620 INCHES FIRST END IN
Body StylePLAIN, SOLID
Counterbore Nominal Diameter0.375 INCHES COUNTERBORE FIRST END IN
Tooth FormSTANDARD
Face Nominal Width0.500 INCHES IN
Counterbore Nominal Depth0.053 INCHES COUNTERBORE FIRST END IN
Nominal Outside Diameter0.5770 INCHES IN
Hub Style DesignatorPINNED FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-157-0427 INTERCHANGEABLE
Bearing,ball,thrust
3120-00-430-944111738 INTERCHANGEABLE
Bearing,sleeve
Dressta North America Ltd
5342-00-949-380832-87803-1 INTERCHANGEABLE
Mount,resilient,weapon System
Wynnson Enterprises, Inc.
Cross-Reference Index
Part NumberManufacturer
979-1B617 Gap Instrument Corp (USA)
B21546 Litton Systems Inc Itek Optical Systems Div (USA)
979-1B617 Advanced Logic Resources Inc Dba Alr (USA)
206-272 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
59701 Arma Div Ambac Industries Inc
R11738 Seeburg Corp the Seeburg Products Div (USA)
B206-272-1 PRIMARY Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
Related Parts
3110-00-157-0427INTERCHANGEABLE
BEARING,BALL,THRUST
3120-00-430-9441INTERCHANGEABLE
BEARING,SLEEVE
11738
5342-00-949-3808INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
32-87803-1

Frequently Asked Questions

What is NSN 3020-00-337-1250?

NSN 3020-00-337-1250 is a Gear,spur, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-337-1250?

NSN 3020-00-337-1250 has 7 cross-referenced part numbers: 979-1B617 (Gap Instrument Corp), B21546 (Litton Systems Inc Itek Optical Systems Div), 979-1B617 (Advanced Logic Resources Inc Dba Alr), 206-272 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), 59701 (Arma Div Ambac Industries Inc) and 2 more.

What NSN replaces 3020-00-337-1250?

There are 3 known substitutes for 3020-00-337-1250: 3110-00-157-0427, 3120-00-430-9441, 5342-00-949-3808. Verify interchangeability with system specifications before substitution.

What are the specifications of B206-272-1?

Key specifications for B206-272-1: Material: STEEL OVERALL; Bore Nominal Diameter: 0.1865 INCHES COUNTERBORE FIRST END IN; Style Designator: PROTRUDING HUB; Hub Nominal Diameter: 0.5770 INCHES FIRST END IN. 16 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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