PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1543Gear,spur

Scientific Atlanta Inc · NSN 3020-00-403-9411 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-403-9411 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-403-9411. Primary manufacturer part number: 1543.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Outside Diameter: 2.432 INCHES IN
  • Bore Nominal Diameter: 0.502 INCHES BOTH ENDS IN
  • Face Nominal Width: 0.440 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1117 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-403-9411, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Scientific Atlanta Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-403-9411
Primary Part Number1543
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerScientific Atlanta Inc
StatusACTIVE
Body StylePLAIN, SOLID
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Nominal Outside Diameter2.432 INCHES IN
Bore Nominal Diameter0.502 INCHES BOTH ENDS IN
Face Nominal Width0.440 INCHES IN
Pressure Angle20.0000 DEGREES
Teeth Quantity12
Style DesignatorHUBLESS
Tooth FormSTANDARD
Pitch Diameter2.0000 INCHES NOMINAL IN
MaterialSTEEL COMP 1117 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-5498 INTERCHANGEABLE
Bearing,roller,tapered
6625-00-119-22491543 INTERCHANGEABLE
Meter,multiple Scale
Jewell Instruments Llc
6340-00-344-279614-78070 INTERCHANGEABLE
Alarm,audible,landing Gear
L3harris Technologies, Inc Div Space & Airborne Systems
5360-00-468-3200 INTERCHANGEABLE
Spring,helical,compression
3120-00-511-1212 INTERCHANGEABLE
Bearing,plain,rod End
5340-00-567-5665 INTERCHANGEABLE
Socket,caster
2920-00-596-99513457 INTERCHANGEABLE
Switch,engine Starter,electrical
Tvh Parts Co.
5905-00-636-7746BLU0401J INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5930-00-724-5417 INTERCHANGEABLE
Switch,toggle
5325-00-737-2521116878 INTERCHANGEABLE
Insert,screw Thread
Am General Llc
Cross-Reference Index
Part NumberManufacturer
1543 PRIMARY Scientific Atlanta Inc (USA)
1543B PRIMARY Scientific Atlanta Inc (USA)
Related Parts
3110-00-100-5498INTERCHANGEABLE
BEARING,ROLLER,TAPERED
6625-00-119-2249INTERCHANGEABLE
METER,MULTIPLE SCALE
1543
6340-00-344-2796INTERCHANGEABLE
ALARM,AUDIBLE,LANDING GEAR
14-78070
5360-00-468-3200INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3120-00-511-1212INTERCHANGEABLE
BEARING,PLAIN,ROD END
5340-00-567-5665INTERCHANGEABLE
SOCKET,CASTER
2920-00-596-9951INTERCHANGEABLE
SWITCH,ENGINE STARTER,ELECTRICAL
3457
5905-00-636-7746INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
BLU0401J
5930-00-724-5417INTERCHANGEABLE
SWITCH,TOGGLE
5325-00-737-2521INTERCHANGEABLE
INSERT,SCREW THREAD
116878
5961-00-790-7892INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
1855-0047
5910-00-851-7794INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
236AGF1032

Frequently Asked Questions

What is NSN 3020-00-403-9411?

NSN 3020-00-403-9411 is a Gear,spur, manufactured by Scientific Atlanta Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-403-9411?

NSN 3020-00-403-9411 has 2 cross-referenced part numbers: 1543 (Scientific Atlanta Inc), 1543B (Scientific Atlanta Inc).

What NSN replaces 3020-00-403-9411?

There are 12 known substitutes for 3020-00-403-9411: 3110-00-100-5498, 6625-00-119-2249, 6340-00-344-2796 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1543?

Key specifications for 1543: Body Style: PLAIN, SOLID; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 2.432 INCHES IN. 12 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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