PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K83ALT1Gear,spur

The Dewey Electronics Corporation Div Pitometer Log Division · NSN 3020-00-250-8247 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-250-8247 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-250-8247. Primary manufacturer part number: K83ALT1.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, WITH LIGHTENING HOLES
  • Hub Style Designator: PLAIN SECOND END
  • Hub Style Designator: 1 STEP FIRST END
  • Hub Nominal Diameter: 0.375 INCHES SECOND END IN
  • Material: COPPER ALLOY OVERALL
  • Nominal Outside Diameter: 1.8315 INCHES IN
  • End Nominal Length: 0.0468 INCHES FIRST END IN
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 3020-00-250-8247, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is The Dewey Electronics Corporation Div Pitometer Log Division. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-250-8247
Primary Part NumberK83ALT1
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation Div Pitometer Log Division
StatusACTIVE
Body StylePLAIN, WITH LIGHTENING HOLES
Hub Style DesignatorPLAIN SECOND END
Hub Style Designator1 STEP FIRST END
Hub Nominal Diameter0.375 INCHES SECOND END IN
MaterialCOPPER ALLOY OVERALL
Nominal Outside Diameter1.8315 INCHES IN
End Nominal Length0.0468 INCHES FIRST END IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width0.078 INCHES IN
First Step Nominal Length0.125 INCHES FIRST END IN
Pressure Angle14.5000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.1875 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.0468 INCHES SECOND END IN
First Step Nominal Diameter0.438 INCHES FIRST END IN
Style DesignatorPROTRUDING HUBS
Tooth FormSTANDARD
Bore Nominal Diameter0.1876 INCHES BOTH ENDS IN
End Nominal Diameter0.2810 INCHES FIRST END IN
Pitch Diameter1.7900 INCHES MINIMUM AND 1.7920 INCHES MAXIMUM IN
Teeth Quantity86
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-140-175443001139-000 INTERCHANGEABLE
Transformer,audio Frequency
Dne Technologies, Inc
5930-00-532-605489263 INTERCHANGEABLE
Switch,rotary
L3harris Technologies, Inc Div Space & Airborne Systems
5305-01-215-2503K-8-3-1 INTERCHANGEABLE
Setscrew
Bird-Johnson Propeller Company, Llc
5331-01-275-9428K83 INTERCHANGEABLE
O-Ring
Butterworth, Inc.
5365-01-286-630812577115 INTERCHANGEABLE
Spacer,sleeve
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5305-01-325-5984115652136FN72 INTERCHANGEABLE
Setscrew
Bird-Johnson Propeller Company, Llc
3460-01-339-7308K-83 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
Cross-Reference Index
Part NumberManufacturer
K83ALT1 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
7-3APC86 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
7-3BPC86 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
24-1PC87 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
K83 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
K83-1 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
208-1PC77 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
7-4PC86 The Dewey Electronics Corporation Div Pitometer Log Division (USA)
Related Parts
5950-00-140-1754INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
43001139-000
5930-00-532-6054INTERCHANGEABLE
SWITCH,ROTARY
89263
5305-01-215-2503INTERCHANGEABLE
SETSCREW
K-8-3-1
5331-01-275-9428INTERCHANGEABLE
O-RING
K83
5365-01-286-6308INTERCHANGEABLE
SPACER,SLEEVE
12577115
5305-01-325-5984INTERCHANGEABLE
SETSCREW
115652136FN72
3460-01-339-7308INTERCHANGEABLE
WHEEL,ABRASIVE
K-83

Frequently Asked Questions

What is NSN 3020-00-250-8247?

NSN 3020-00-250-8247 is a Gear,spur, manufactured by The Dewey Electronics Corporation Div Pitometer Log Division, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-250-8247?

NSN 3020-00-250-8247 has 8 cross-referenced part numbers: K83ALT1 (The Dewey Electronics Corporation Div Pitometer Log Division), 7-3APC86 (The Dewey Electronics Corporation Div Pitometer Log Division), 7-3BPC86 (The Dewey Electronics Corporation Div Pitometer Log Division), 24-1PC87 (The Dewey Electronics Corporation Div Pitometer Log Division), K83 (The Dewey Electronics Corporation Div Pitometer Log Division) and 3 more.

What NSN replaces 3020-00-250-8247?

There are 7 known substitutes for 3020-00-250-8247: 5950-00-140-1754, 5930-00-532-6054, 5305-01-215-2503 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K83ALT1?

Key specifications for K83ALT1: Body Style: PLAIN, WITH LIGHTENING HOLES; Hub Style Designator: PLAIN SECOND END; Hub Style Designator: 1 STEP FIRST END; Hub Nominal Diameter: 0.375 INCHES SECOND END IN. 20 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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