PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9699H20-3-16Gear,spur

Harmonic Drive L.l.c. · NSN 3020-00-810-5666 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-810-5666 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-810-5666. Primary manufacturer part number: 9699H20-3-16.
Features
  • Gear,spur — FSC 3020
  • Pressure Angle: 20.0000 DEGREES
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
  • Surface Treatment: ANODIZE OVERALL
  • Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Style Designator: PROTRUDING HUB
  • Tooth Form: STANDARD
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 3020-00-810-5666, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Harmonic Drive L.l.c.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-810-5666
Primary Part Number9699H20-3-16
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerHarmonic Drive L.l.c.
StatusACTIVE
Pressure Angle20.0000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Surface TreatmentANODIZE OVERALL
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Hub Nominal Diameter0.375 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Tooth FormSTANDARD
Bore StylePLAIN BOTH ENDS
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialALUMINUM ALLOY 2024 OVERALL
Face Nominal Width0.125 INCHES IN
Hub Style DesignatorPINNED FIRST END
Nominal Outside Diameter1.052 INCHES IN
Pitch Diameter1.0312 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Teeth Quantity99
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6630-00-116-5599Z02-035128-028 INTERCHANGEABLE
Hydrometer,graduated Scale
Stryten Energy Llc
4730-00-277-6948698 INTERCHANGEABLE
Chuck,air,inflating
Milton Industries, Inc
4210-00-318-7323703582 INTERCHANGEABLE
Bar,wedge
Naval Ship Systems Command
5310-00-551-76065599 INTERCHANGEABLE
Nut,plain,hexagon
Telemechanics Inc
5961-00-995-9295MB2127A INTERCHANGEABLE
Semiconductor Device Set
Ballantine Laboratories Inc
5325-01-031-0405 INTERCHANGEABLE
Ring,retaining
5340-01-062-22315599 INTERCHANGEABLE
Bumper
Avo Intl
6130-01-558-7276453567464051 INTERCHANGEABLE
Power Supply,uninterruptible
Philips North America Llc Dba Philips Healthcare
5330-01-587-1139559-9 INTERCHANGEABLE
Seal,assembly
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
301-1078P99 Raytheon Company Div Corp (USA)
301-1078P99 Raytheon Company Dba Raytheon Co (USA)
301-1078P99 Raytheon Company (USA)
55-99 Southern Gear & Machine Inc (USA)
9699H20-3-16 PRIMARY Harmonic Drive L.l.c. (USA)
9190846 Us Army Aviation and Missile Command (USA)
Related Parts
6630-00-116-5599INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
Z02-035128-028
4730-00-277-6948INTERCHANGEABLE
CHUCK,AIR,INFLATING
698
4210-00-318-7323INTERCHANGEABLE
BAR,WEDGE
703582
5310-00-551-7606INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5599
5961-00-995-9295INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
MB2127A
5325-01-031-0405INTERCHANGEABLE
RING,RETAINING
5340-01-062-2231INTERCHANGEABLE
BUMPER
5599
6130-01-558-7276INTERCHANGEABLE
POWER SUPPLY,UNINTERRUPTIBLE
453567464051
5330-01-587-1139INTERCHANGEABLE
SEAL,ASSEMBLY
559-9

Frequently Asked Questions

What is NSN 3020-00-810-5666?

NSN 3020-00-810-5666 is a Gear,spur, manufactured by Harmonic Drive L.l.c., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-810-5666?

NSN 3020-00-810-5666 has 6 cross-referenced part numbers: 301-1078P99 (Raytheon Company Div Corp), 301-1078P99 (Raytheon Company Dba Raytheon Co), 301-1078P99 (Raytheon Company), 55-99 (Southern Gear & Machine Inc), 9699H20-3-16 (Harmonic Drive L.l.c.) and 1 more.

What NSN replaces 3020-00-810-5666?

There are 9 known substitutes for 3020-00-810-5666: 6630-00-116-5599, 4730-00-277-6948, 4210-00-318-7323 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9699H20-3-16?

Key specifications for 9699H20-3-16: Pressure Angle: 20.0000 DEGREES; Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN; Surface Treatment: ANODIZE OVERALL; Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN. 17 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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