PartsTable TECHNICAL DATA SHEET
NSN 3020-00-406-6771Government record, cited

Gear, Spur3020-00-406-6771

NSN 3020-00-406-6771 · NIIN 004066771 · Part number 656-88ACDP2
Southern Gear & Machine Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 01351
Government record, cited
NSN 3020-00-406-6771 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-406-6771. Manufacturer of record part number: 656-88ACDP2.
Also searched as  3020-00-406-6771 · 3020004066771 · NIIN 004066771 · 00-406-6771 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 01351 · 656-88ACDP2
Nearby stock numbers  ·
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Teeth Quantity: 88
  • Body Style: PLAIN, SOLID
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
  • Style Designator: PROTRUDING HUB
Identification
  • NSN: 3020-00-406-6771
  • NIIN: 004066771
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 656-88ACDP2
  • Manufacturer: Southern Gear & Machine Inc
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-406-6771, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Southern Gear & Machine Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-406-6771
Primary Part Number656-88ACDP2
Item NameGear,spur
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerSouthern Gear & Machine Inc
StatusACTIVE
Bore Nominal Diameter0.125 INCHES BOTH ENDS IN
Hub Nominal Diameter0.375 INCHES FIRST END IN
Teeth Quantity88
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Pitch Diameter0.7326 INCHES MINIMUM AND 0.7330 INCHES MAXIMUM IN
Tooth FormSTANDARD
Hub Style DesignatorPINNED FIRST END
Nominal Outside Diameter0.749 INCHES IN
Surface TreatmentANODIZE OVERALL
Pressure Angle20.0000 DEGREES
MaterialALUMINUM ALLOY 2024 OVERALL
Face Nominal Width0.125 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
656-88ACDP2 PRIMARY Southern Gear & Machine Inc (USA)
No interchangeability data on file.
Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091
GEAR,SPUR
3020-00-001-0027
3020-00-001-0027 · Item name not on file
3020-00-001-0028
3020-00-001-0028 · Item name not on file
3020-00-001-0063
3020-00-001-0063 · Item name not on file
3020-00-001-0064
3020-00-001-0064 · Item name not on file
3020-00-001-0066
3020-00-001-0066 · Item name not on file
3020-00-001-0071
3020-00-001-0071 · Item name not on file
3020-00-001-0072
3020-00-001-0072 · Item name not on file

Frequently Asked Questions

What is NSN 3020-00-406-6771?

NSN 3020-00-406-6771 is a Gear,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-00-406-6771?

NSN 3020-00-406-6771 has 1 manufacturer part number on file: 656-88ACDP2 (Southern Gear & Machine Inc).

What are the specifications of 656-88ACDP2?

Key specifications for 656-88ACDP2: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 88; Body Style: PLAIN, SOLID. 16 specifications are documented in the U.S. Government catalog.

Is NSN 3020-00-406-6771 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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