PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21620Gearcase-Motor

Naval Sea Systems Command · NSN 3010-00-238-4566 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-238-4566 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-238-4566. Primary manufacturer part number: 21620.
Features
  • Gearcase-Motor — FSC 3010
  • Frequency in Hertz: 60.0 INPUT
  • Winding Type: SYNCHRONOUS
  • Connection Type and Voltage Rating in Volts: 115.0 LINE TO NEUTRAL SINGLE INPUT
  • Geared Head Output Shaft Speed Rating: 60.000 SINGLE REVOLUTIONS PER MINUTE SINGLE END
  • Step Diameter: 0.281 INCHES MINIMUM AND 0.375 INCHES MAXIMUM SINGLE END IN
  • Shaft Rotation Direction: CLOCKWISE SINGLE END
  • Nominal Center to Center Distance Between Mounting Facilities Parallel to Length: 3.500 INCHES IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Gearcase-Motor, cataloged under National Stock Number 3010-00-238-4566, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 18 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
NSN3010-00-238-4566
Primary Part Number21620
Item NameGearcase-Motor
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Frequency in Hertz60.0 INPUT
Winding TypeSYNCHRONOUS
Connection Type and Voltage Rating in Volts115.0 LINE TO NEUTRAL SINGLE INPUT
Geared Head Output Shaft Speed Rating60.000 SINGLE REVOLUTIONS PER MINUTE SINGLE END
Step Diameter0.281 INCHES MINIMUM AND 0.375 INCHES MAXIMUM SINGLE END IN
Shaft Rotation DirectionCLOCKWISE SINGLE END
Nominal Center to Center Distance Between Mounting Facilities Parallel to Length3.500 INCHES IN
Current TypeAC INPUT
Inclosure SpecificationCOMMERCIAL
Shaft Diameter0.6250 INCHES NOMINAL SINGLE END IN
Temp Rating0.0 OPERATING CELSIUS AND 50.0 OPERATING CELSIUS AND 55.0 AMBIENT CELSIUS
Shaft End CharacteristicA12 SINGLE STYLE SINGLE END
Length of Shaft From Housing2.375 INCHES SINGLE END IN
Duty CycleCONTINUOUS
PhaseSINGLE INPUT
Power Rating0.0066 HORSEPOWER OUTPUT
Nominal Center to Center Distance Between Mounting Facilities Parallel to Width3.500 INCHES IN
Features ProvidedVERTICAL MOUNTING POSITION AND HORIZONTAL MOUNTING POSITION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3040-00-163-040099121620 INTERCHANGEABLE
Gearshaft,spur
Alfa Laval Inc
1650-00-252-336321620 INTERCHANGEABLE
Parts Kit,valve Ove
Eaton Aerospace Llc
4320-00-678-283323163 INTERCHANGEABLE
Shaft,transmission,pump
Industrial Technologies and Services Llc
6630-00-986-522921-620 INTERCHANGEABLE
Chromatograph,gas
Sypris Electronics, Llc
5330-01-242-0691 INTERCHANGEABLE
Seal,plain Encased
1650-01-326-599621620 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Parker Hannifin Corporation Div Hydraulic Systems Division
6520-01-591-80825012734U0 INTERCHANGEABLE
Handpiece,dental
Brasseler Usa I Lp
Cross-Reference Index
Part NumberManufacturer
21620 Naval Ship Systems Command (USA)
21620 PRIMARY Naval Sea Systems Command (USA)
Related Parts
3040-00-163-0400INTERCHANGEABLE
GEARSHAFT,SPUR
99121620
1650-00-252-3363INTERCHANGEABLE
PARTS KIT,VALVE OVE
21620
4320-00-678-2833INTERCHANGEABLE
SHAFT,TRANSMISSION,PUMP
23163
6630-00-986-5229INTERCHANGEABLE
CHROMATOGRAPH,GAS
21-620
5330-01-242-0691INTERCHANGEABLE
SEAL,PLAIN ENCASED
1650-01-326-5996INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
21620
6520-01-591-8082INTERCHANGEABLE
HANDPIECE,DENTAL
5012734U0

Frequently Asked Questions

What is NSN 3010-00-238-4566?

NSN 3010-00-238-4566 is a Gearcase-Motor, manufactured by Naval Sea Systems Command, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-238-4566?

NSN 3010-00-238-4566 has 2 cross-referenced part numbers: 21620 (Naval Ship Systems Command), 21620 (Naval Sea Systems Command).

What NSN replaces 3010-00-238-4566?

There are 7 known substitutes for 3010-00-238-4566: 3040-00-163-0400, 1650-00-252-3363, 4320-00-678-2833 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21620?

Key specifications for 21620: Overall Length: 6.875 INCHES IN; Frequency in Hertz: 60.0 INPUT; Overall Width: 4.125 INCHES IN; Winding Type: SYNCHRONOUS. 22 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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