PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4851Gear,spur

Cummins Inc. · NSN 3020-00-353-9273 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-353-9273 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-353-9273. Primary manufacturer part number: 4851.
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 18.372 INCHES BOTH ENDS IN
  • Bore Style: PLAIN BOTH ENDS
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Tooth Form: STANDARD
  • Teeth Quantity: 118
  • Pitch Diameter: 19.6667 INCHES NOMINAL IN
  • Face Nominal Width: 0.871 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1050 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-353-9273, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-353-9273
Primary Part Number4851
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Bore Nominal Diameter18.372 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Tooth FormSTANDARD
Teeth Quantity118
Pitch Diameter19.6667 INCHES NOMINAL IN
Face Nominal Width0.871 INCHES IN
MaterialSTEEL COMP 1050 OVERALL
Pressure Angle20.0000 DEGREES
Style DesignatorHUBLESS
Body StylePLAIN, SOLID
Nominal Outside Diameter10.887 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-189-3673SCC23903-6 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-231-6172E424Y1 INTERCHANGEABLE
Transformer Assembly
Bae Systems Information and Electronic Systems Integration Inc.
6695-00-359-99424851 INTERCHANGEABLE
Sampler,liquid
Echelon Supply and Service, Inc.
4940-00-476-2671 INTERCHANGEABLE
Holder,flexible
5950-00-646-155976215-1 INTERCHANGEABLE
Coil,radio Frequency
L3harris Cincinnati Electronics Corporation
5815-00-757-306304851 INTERCHANGEABLE
Teletypewriter Subassembly
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
5360-00-790-2690 INTERCHANGEABLE
Spring,pressure Reg
5945-00-876-65787351-18 INTERCHANGEABLE
Relay,electromagnetic
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
6640-01-018-97164851 INTERCHANGEABLE
Test Tube,blood Collecting
Becton, Dickinson and Co Dba Becton Dickinson & Co
6505-01-197-88094-851 INTERCHANGEABLE
Rehydration Salts,oral
Jianas Brothers Packaging Company
Cross-Reference Index
Part NumberManufacturer
4851 PRIMARY Cummins Inc. (USA)
Related Parts
5950-00-189-3673INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SCC23903-6
5950-00-231-6172INTERCHANGEABLE
TRANSFORMER ASSEMBLY
E424Y1
6695-00-359-9942INTERCHANGEABLE
SAMPLER,LIQUID
4851
4940-00-476-2671INTERCHANGEABLE
HOLDER,FLEXIBLE
5950-00-646-1559INTERCHANGEABLE
COIL,RADIO FREQUENCY
76215-1
5815-00-757-3063INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
04851
5360-00-790-2690INTERCHANGEABLE
SPRING,PRESSURE REG
5945-00-876-6578INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
7351-18
6640-01-018-9716INTERCHANGEABLE
TEST TUBE,BLOOD COLLECTING
4851
6505-01-197-8809INTERCHANGEABLE
REHYDRATION SALTS,ORAL
4-851
5360-01-286-0788INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4851
5975-01-462-3353INTERCHANGEABLE
JUNCTION BOX ASSEMBLY

Frequently Asked Questions

What is NSN 3020-00-353-9273?

NSN 3020-00-353-9273 is a Gear,spur, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-353-9273?

NSN 3020-00-353-9273 has 1 cross-referenced part number: 4851 (Cummins Inc.).

What NSN replaces 3020-00-353-9273?

There are 12 known substitutes for 3020-00-353-9273: 5950-00-189-3673, 5950-00-231-6172, 6695-00-359-9942 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4851?

Key specifications for 4851: Bore Nominal Diameter: 18.372 INCHES BOTH ENDS IN; Bore Style: PLAIN BOTH ENDS; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Tooth Form: STANDARD. 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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