PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255-64Gear,spur

Southern Gear & Machine Inc · NSN 3020-00-815-7063 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-815-7063 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-815-7063. Primary manufacturer part number: 255-64.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 1.0000 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
  • Tooth Form: STANDARD
  • Nominal Overall Length: 0.375 INCHES IN
  • Surface Treatment: ANODIZE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-815-7063, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Southern Gear & Machine Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN3020-00-815-7063
Primary Part Number255-64
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerSouthern Gear & Machine Inc
StatusACTIVE
Pitch Diameter1.0000 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024 OVERALL
Hub Nominal Diameter0.375 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Tooth FormSTANDARD
Nominal Overall Length0.375 INCHES IN
Surface TreatmentANODIZE OVERALL
Bore StylePLAIN BOTH ENDS
Mounting Hole Nominal Thread Size0.086 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Mounting Hole Thread Quantity Per Inch56 TRANSVERSELY THROUGH HUB FIRST END
Nominal Outside Diameter1.031 INCHES IN
Pressure Angle20.0000 DEGREES
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11
Face Nominal Width0.125 INCHES IN
Mounting Hole Type and Quantity1 THREADED TRANSVERSELY THROUGH HUB FIRST END
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hub Style DesignatorPINNED FIRST END
Style DesignatorPROTRUDING HUB
Teeth Quantity64
Body StylePLAIN, SOLID
Attachment MethodMOUNTING HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-236-4046 INTERCHANGEABLE
Drill,twist
5960-00-270-33267583084 INTERCHANGEABLE
Retainer,electron Tube
Us Army Aviation and Missile Command
4720-00-847-171013221E4806-1 INTERCHANGEABLE
Hose,nonmetallic
Cecom Lr Center
5330-01-143-1699 INTERCHANGEABLE
Seal,plain
3120-01-175-052025564 INTERCHANGEABLE
Bushing,sleeve
Altra Industrial Motion Corp.
3040-01-356-4640230049 INTERCHANGEABLE
Cylinder,actuating,linear
Allied Systems Company Dba Allied Systems Co
3040-01-505-1323100434 INTERCHANGEABLE
Cylinder,actuating,linear
Paccar Winch Inc Dba Paccar Winch Division
Cross-Reference Index
Part NumberManufacturer
255-64 PRIMARY Southern Gear & Machine Inc (USA)
9191058 Us Army Aviation and Missile Command (USA)
Related Parts
5133-00-236-4046INTERCHANGEABLE
DRILL,TWIST
5960-00-270-3326INTERCHANGEABLE
RETAINER,ELECTRON TUBE
7583084
4720-00-847-1710INTERCHANGEABLE
HOSE,NONMETALLIC
13221E4806-1
5330-01-143-1699INTERCHANGEABLE
SEAL,PLAIN
3120-01-175-0520INTERCHANGEABLE
BUSHING,SLEEVE
25564
3040-01-356-4640INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
230049
3040-01-505-1323INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
100434

Frequently Asked Questions

What is NSN 3020-00-815-7063?

NSN 3020-00-815-7063 is a Gear,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-815-7063?

NSN 3020-00-815-7063 has 2 cross-referenced part numbers: 255-64 (Southern Gear & Machine Inc), 9191058 (Us Army Aviation and Missile Command).

What NSN replaces 3020-00-815-7063?

There are 7 known substitutes for 3020-00-815-7063: 5133-00-236-4046, 5960-00-270-3326, 4720-00-847-1710 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 255-64?

Key specifications for 255-64: Pitch Diameter: 1.0000 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2024 OVERALL; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN. 24 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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